./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF --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 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:32:20,803 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:32:20,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:32:20,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:32:20,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:32:20,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:32:20,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:32:20,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:32:20,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:32:20,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:32:20,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:32:20,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:32:20,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:32:20,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:32:20,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:32:20,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:32:20,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:32:20,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:32:20,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:32:20,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:32:20,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:32:20,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:32:20,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:32:20,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:32:20,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:32:20,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:32:20,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:32:20,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:32:20,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:32:20,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:32:20,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:32:20,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:32:20,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:32:20,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:32:20,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:32:20,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:32:20,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:32:20,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:32:20,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:32:20,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:32:20,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:32:20,928 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-13 01:32:20,978 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:32:20,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:32:20,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:32:20,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:32:20,981 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:32:20,981 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:32:20,981 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:32:20,981 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 01:32:20,982 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:32:20,982 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:32:20,983 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 01:32:20,983 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 01:32:20,983 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:32:20,984 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 01:32:20,984 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 01:32:20,984 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 01:32:20,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:32:20,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 01:32:20,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:32:20,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:32:20,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:32:20,986 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:32:20,986 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:32:20,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:32:20,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:32:20,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:32:20,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:32:20,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:32:20,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:32:20,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:32:20,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:32:20,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:32:20,990 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 01:32:20,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 01:32:20,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:32:20,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:32:20,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:32:20,991 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_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 [2021-11-13 01:32:21,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:32:21,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:32:21,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:32:21,280 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:32:21,285 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:32:21,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-13 01:32:21,363 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/18080d419/83afde2a0daf440e84abaad9ca378a02/FLAGeba264845 [2021-11-13 01:32:22,397 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:32:22,398 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-13 01:32:22,466 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/18080d419/83afde2a0daf440e84abaad9ca378a02/FLAGeba264845 [2021-11-13 01:32:22,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/18080d419/83afde2a0daf440e84abaad9ca378a02 [2021-11-13 01:32:22,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:32:22,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:32:22,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:32:22,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:32:22,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:32:22,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:22" (1/1) ... [2021-11-13 01:32:22,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0393b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:22, skipping insertion in model container [2021-11-13 01:32:22,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:22" (1/1) ... [2021-11-13 01:32:22,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:32:22,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:32:25,434 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:32:25,439 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:32:25,443 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:32:25,444 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-13 01:32:27,455 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-13 01:32:27,457 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-13 01:32:27,458 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-13 01:32:27,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-13 01:32:27,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-13 01:32:27,460 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-13 01:32:27,460 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-13 01:32:27,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-13 01:32:27,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-13 01:32:27,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-13 01:32:27,478 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-13 01:32:27,479 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-13 01:32:27,479 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-13 01:32:27,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-13 01:32:27,480 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-13 01:32:27,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-13 01:32:27,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-13 01:32:27,491 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-13 01:32:27,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-13 01:32:27,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-13 01:32:27,496 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-13 01:32:27,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-13 01:32:27,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-13 01:32:27,503 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-13 01:32:27,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-13 01:32:27,505 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-13 01:32:27,505 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-13 01:32:27,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-13 01:32:27,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-13 01:32:27,507 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-13 01:32:27,507 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-13 01:32:27,508 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-13 01:32:27,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-13 01:32:27,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-13 01:32:27,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-13 01:32:27,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-13 01:32:27,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-13 01:32:27,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-13 01:32:27,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-13 01:32:27,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-13 01:32:27,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-13 01:32:27,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-13 01:32:27,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-13 01:32:27,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-13 01:32:27,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-13 01:32:27,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-13 01:32:27,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-13 01:32:27,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-13 01:32:27,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-13 01:32:27,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-13 01:32:27,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-13 01:32:27,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-13 01:32:27,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-13 01:32:27,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-13 01:32:27,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-13 01:32:27,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-13 01:32:27,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-13 01:32:27,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-13 01:32:27,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-13 01:32:27,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-13 01:32:27,526 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-13 01:32:27,527 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-13 01:32:27,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-13 01:32:27,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-13 01:32:27,529 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-13 01:32:27,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-13 01:32:27,530 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-13 01:32:27,531 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-13 01:32:27,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-13 01:32:27,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-13 01:32:27,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-13 01:32:27,533 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-13 01:32:27,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-13 01:32:27,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-13 01:32:27,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-13 01:32:27,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-13 01:32:27,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-13 01:32:27,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-13 01:32:27,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-13 01:32:27,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-13 01:32:27,538 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-13 01:32:27,539 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-13 01:32:27,539 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-13 01:32:27,540 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-13 01:32:27,541 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-13 01:32:27,542 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-13 01:32:27,544 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-13 01:32:27,545 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-13 01:32:27,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:32:27,609 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) [2021-11-13 01:32:27,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f52bc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:27, skipping insertion in model container [2021-11-13 01:32:27,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:32:27,611 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-13 01:32:27,613 INFO L158 Benchmark]: Toolchain (without parser) took 4812.19ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.3MB in the beginning and 122.1MB in the end (delta: -64.8MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2021-11-13 01:32:27,613 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 01:32:27,614 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4807.76ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.1MB in the beginning and 122.1MB in the end (delta: -65.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2021-11-13 01:32:27,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 62.1MB in the beginning and 62.1MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4807.76ms. Allocated memory was 104.9MB in the beginning and 186.6MB in the end (delta: 81.8MB). Free memory was 57.1MB in the beginning and 122.1MB in the end (delta: -65.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7092]: 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_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF --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 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 01:32:29,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 01:32:29,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 01:32:29,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 01:32:29,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 01:32:29,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 01:32:29,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 01:32:29,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 01:32:29,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 01:32:29,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 01:32:29,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 01:32:29,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 01:32:29,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 01:32:29,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 01:32:29,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 01:32:29,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 01:32:29,983 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 01:32:29,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 01:32:29,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 01:32:29,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 01:32:29,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 01:32:29,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 01:32:29,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 01:32:29,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 01:32:29,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 01:32:30,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 01:32:30,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 01:32:30,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 01:32:30,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 01:32:30,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 01:32:30,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 01:32:30,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 01:32:30,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 01:32:30,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 01:32:30,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 01:32:30,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 01:32:30,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 01:32:30,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 01:32:30,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 01:32:30,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 01:32:30,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 01:32:30,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-13 01:32:30,056 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 01:32:30,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 01:32:30,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 01:32:30,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 01:32:30,058 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 01:32:30,059 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 01:32:30,059 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 01:32:30,059 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 01:32:30,059 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 01:32:30,060 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 01:32:30,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 01:32:30,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 01:32:30,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 01:32:30,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 01:32:30,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 01:32:30,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 01:32:30,064 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 01:32:30,064 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 01:32:30,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 01:32:30,064 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 01:32:30,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 01:32:30,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 01:32:30,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 01:32:30,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 01:32:30,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:32:30,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 01:32:30,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 01:32:30,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 01:32:30,066 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 01:32:30,067 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 01:32:30,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 01:32:30,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 01:32:30,067 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 01:32:30,067 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_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 [2021-11-13 01:32:30,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 01:32:30,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 01:32:30,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 01:32:30,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 01:32:30,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 01:32:30,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-13 01:32:30,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/c5bfb556a/06542765573f4f158ce618e4bfcddef9/FLAG20c0a63f6 [2021-11-13 01:32:31,659 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 01:32:31,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-13 01:32:31,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/c5bfb556a/06542765573f4f158ce618e4bfcddef9/FLAG20c0a63f6 [2021-11-13 01:32:31,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/data/c5bfb556a/06542765573f4f158ce618e4bfcddef9 [2021-11-13 01:32:31,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 01:32:31,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 01:32:31,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 01:32:31,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 01:32:31,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 01:32:31,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:31" (1/1) ... [2021-11-13 01:32:31,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3f7bd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:31, skipping insertion in model container [2021-11-13 01:32:31,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:32:31" (1/1) ... [2021-11-13 01:32:31,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 01:32:32,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:32:38,027 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-13 01:32:38,030 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-13 01:32:38,031 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-13 01:32:38,031 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-13 01:32:38,032 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-13 01:32:38,032 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-13 01:32:38,033 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-13 01:32:38,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-13 01:32:38,034 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-13 01:32:38,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-13 01:32:38,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-13 01:32:38,036 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-13 01:32:38,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-13 01:32:38,038 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-13 01:32:38,039 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-13 01:32:38,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-13 01:32:38,040 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-13 01:32:38,041 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-13 01:32:38,041 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-13 01:32:38,042 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-13 01:32:38,042 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-13 01:32:38,043 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-13 01:32:38,043 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-13 01:32:38,044 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-13 01:32:38,045 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-13 01:32:38,045 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-13 01:32:38,046 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-13 01:32:38,046 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-13 01:32:38,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-13 01:32:38,047 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-13 01:32:38,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-13 01:32:38,048 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-13 01:32:38,049 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-13 01:32:38,049 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-13 01:32:38,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-13 01:32:38,050 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-13 01:32:38,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-13 01:32:38,051 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-13 01:32:38,052 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-13 01:32:38,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-13 01:32:38,053 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-13 01:32:38,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-13 01:32:38,054 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-13 01:32:38,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-13 01:32:38,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-13 01:32:38,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-13 01:32:38,056 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-13 01:32:38,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-13 01:32:38,057 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-13 01:32:38,058 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-13 01:32:38,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-13 01:32:38,059 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-13 01:32:38,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-13 01:32:38,060 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-13 01:32:38,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-13 01:32:38,061 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-13 01:32:38,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-13 01:32:38,062 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-13 01:32:38,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-13 01:32:38,063 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-13 01:32:38,064 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-13 01:32:38,065 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-13 01:32:38,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-13 01:32:38,066 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-13 01:32:38,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-13 01:32:38,067 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-13 01:32:38,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-13 01:32:38,068 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-13 01:32:38,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-13 01:32:38,069 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-13 01:32:38,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-13 01:32:38,070 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-13 01:32:38,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-13 01:32:38,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-13 01:32:38,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-13 01:32:38,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-13 01:32:38,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-13 01:32:38,073 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-13 01:32:38,074 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-13 01:32:38,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-13 01:32:38,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-13 01:32:38,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-13 01:32:38,076 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-13 01:32:38,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-13 01:32:38,077 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-13 01:32:38,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-13 01:32:38,078 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-13 01:32:38,079 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-13 01:32:38,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:32:38,161 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-13 01:32:38,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 01:32:38,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-13 01:32:38,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-13 01:32:38,585 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-13 01:32:38,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-13 01:32:38,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-13 01:32:38,588 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-13 01:32:38,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-13 01:32:38,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-13 01:32:38,589 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-13 01:32:38,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-13 01:32:38,590 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-13 01:32:38,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-13 01:32:38,591 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-13 01:32:38,592 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-13 01:32:38,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-13 01:32:38,593 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-13 01:32:38,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-13 01:32:38,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-13 01:32:38,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-13 01:32:38,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-13 01:32:38,595 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-13 01:32:38,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-13 01:32:38,596 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-13 01:32:38,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-13 01:32:38,597 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-13 01:32:38,598 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-13 01:32:38,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-13 01:32:38,600 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-13 01:32:38,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-13 01:32:38,601 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-13 01:32:38,602 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-13 01:32:38,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-13 01:32:38,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-13 01:32:38,603 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-13 01:32:38,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-13 01:32:38,604 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-13 01:32:38,605 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-13 01:32:38,606 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-13 01:32:38,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-13 01:32:38,607 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-13 01:32:38,609 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-13 01:32:38,610 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-13 01:32:38,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-13 01:32:38,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-13 01:32:38,611 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-13 01:32:38,612 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-13 01:32:38,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-13 01:32:38,613 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-13 01:32:38,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-13 01:32:38,614 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-13 01:32:38,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-13 01:32:38,615 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-13 01:32:38,616 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-13 01:32:38,621 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-13 01:32:38,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-13 01:32:38,622 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-13 01:32:38,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-13 01:32:38,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-13 01:32:38,624 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-13 01:32:38,625 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-13 01:32:38,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-13 01:32:38,629 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-13 01:32:38,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-13 01:32:38,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-13 01:32:38,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-13 01:32:38,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-13 01:32:38,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-13 01:32:38,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-13 01:32:38,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-13 01:32:38,640 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-13 01:32:38,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-13 01:32:38,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-13 01:32:38,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-13 01:32:38,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-13 01:32:38,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-13 01:32:38,643 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-13 01:32:38,643 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-13 01:32:38,644 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-13 01:32:38,645 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-13 01:32:38,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-13 01:32:38,647 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-13 01:32:38,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-13 01:32:38,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-13 01:32:38,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-13 01:32:38,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-13 01:32:38,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-13 01:32:38,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-13 01:32:38,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-13 01:32:38,656 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:32:38,698 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 01:32:39,159 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-13 01:32:39,160 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-13 01:32:39,160 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-13 01:32:39,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-13 01:32:39,161 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-13 01:32:39,162 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-13 01:32:39,162 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-13 01:32:39,162 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-13 01:32:39,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-13 01:32:39,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-13 01:32:39,163 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-13 01:32:39,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-13 01:32:39,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-13 01:32:39,164 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-13 01:32:39,165 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-13 01:32:39,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-13 01:32:39,166 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-13 01:32:39,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-13 01:32:39,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-13 01:32:39,167 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-13 01:32:39,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-13 01:32:39,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-13 01:32:39,168 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-13 01:32:39,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-13 01:32:39,169 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-13 01:32:39,170 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-13 01:32:39,172 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-13 01:32:39,172 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-13 01:32:39,173 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-13 01:32:39,174 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-13 01:32:39,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-13 01:32:39,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-13 01:32:39,175 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-13 01:32:39,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-13 01:32:39,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-13 01:32:39,176 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-13 01:32:39,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-13 01:32:39,177 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-13 01:32:39,178 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-13 01:32:39,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-13 01:32:39,179 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-13 01:32:39,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-13 01:32:39,180 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-13 01:32:39,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-13 01:32:39,182 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-13 01:32:39,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-13 01:32:39,183 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-13 01:32:39,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-13 01:32:39,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-13 01:32:39,184 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-13 01:32:39,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-13 01:32:39,185 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-13 01:32:39,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-13 01:32:39,186 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-13 01:32:39,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-13 01:32:39,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-13 01:32:39,187 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-13 01:32:39,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-13 01:32:39,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-13 01:32:39,188 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-13 01:32:39,189 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-13 01:32:39,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-13 01:32:39,190 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-13 01:32:39,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-13 01:32:39,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-13 01:32:39,191 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-13 01:32:39,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-13 01:32:39,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-13 01:32:39,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-13 01:32:39,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-13 01:32:39,193 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-13 01:32:39,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-13 01:32:39,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-13 01:32:39,194 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-13 01:32:39,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-13 01:32:39,195 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-13 01:32:39,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-13 01:32:39,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-13 01:32:39,196 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-13 01:32:39,198 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-13 01:32:39,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-13 01:32:39,202 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-13 01:32:39,203 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-13 01:32:39,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-13 01:32:39,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-13 01:32:39,204 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-13 01:32:39,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-13 01:32:39,205 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-13 01:32:39,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 01:32:39,503 INFO L208 MainTranslator]: Completed translation [2021-11-13 01:32:39,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39 WrapperNode [2021-11-13 01:32:39,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 01:32:39,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 01:32:39,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 01:32:39,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 01:32:39,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:39,620 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:39,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 01:32:39,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 01:32:39,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 01:32:39,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 01:32:39,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:39,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:39,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:39,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:40,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:40,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:40,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:40,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 01:32:40,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 01:32:40,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 01:32:40,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 01:32:40,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (1/1) ... [2021-11-13 01:32:40,318 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 01:32:40,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:32:40,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 01:32:40,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 01:32:40,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 01:32:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-13 01:32:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 01:32:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 01:32:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 01:32:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 01:32:40,393 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-11-13 01:32:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-11-13 01:32:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 01:32:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 01:32:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 01:32:40,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 01:32:40,394 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-11-13 01:32:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-11-13 01:32:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 01:32:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-13 01:32:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 01:32:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-13 01:32:40,395 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2021-11-13 01:32:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2021-11-13 01:32:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-13 01:32:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-13 01:32:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 01:32:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 01:32:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-13 01:32:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-13 01:32:40,396 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-13 01:32:40,397 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-13 01:32:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-13 01:32:40,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-13 01:32:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 01:32:40,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-13 01:32:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 01:32:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 01:32:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-13 01:32:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-13 01:32:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-11-13 01:32:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-11-13 01:32:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-13 01:32:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-13 01:32:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-13 01:32:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-13 01:32:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 01:32:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 01:32:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 01:32:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 01:32:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 01:32:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 01:32:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 01:32:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 01:32:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 01:32:40,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 01:32:40,400 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-13 01:32:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-13 01:32:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 01:32:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 01:32:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-13 01:32:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-13 01:32:40,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-13 01:32:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-13 01:32:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-11-13 01:32:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-11-13 01:32:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 01:32:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 01:32:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 01:32:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 01:32:40,402 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-13 01:32:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-13 01:32:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-13 01:32:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-13 01:32:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 01:32:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 01:32:40,403 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-11-13 01:32:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-11-13 01:32:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 01:32:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-13 01:32:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-11-13 01:32:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-11-13 01:32:40,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 01:32:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-13 01:32:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 01:32:40,405 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 01:32:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 01:32:40,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-13 01:32:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 01:32:40,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 01:32:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 01:32:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 01:32:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 01:32:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 01:32:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-11-13 01:32:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-11-13 01:32:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 01:32:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 01:32:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 01:32:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-13 01:32:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 01:32:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-13 01:32:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-11-13 01:32:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-11-13 01:32:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 01:32:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-13 01:32:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-13 01:32:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 01:32:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 01:32:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 01:32:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 01:32:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 01:32:40,409 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-13 01:32:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-13 01:32:40,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-13 01:32:40,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-13 01:32:40,409 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 01:32:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 01:32:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-13 01:32:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-13 01:32:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-13 01:32:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-11-13 01:32:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-11-13 01:32:40,410 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 01:32:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 01:32:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 01:32:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 01:32:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 01:32:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-13 01:32:40,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 01:32:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 01:32:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-13 01:32:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2021-11-13 01:32:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2021-11-13 01:32:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 01:32:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 01:32:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-13 01:32:40,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 01:32:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 01:32:40,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 01:32:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-13 01:32:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-13 01:32:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-13 01:32:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2021-11-13 01:32:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2021-11-13 01:32:40,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-13 01:32:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-13 01:32:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 01:32:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 01:32:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_130 [2021-11-13 01:32:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_130 [2021-11-13 01:32:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 01:32:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 01:32:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 01:32:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 01:32:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 01:32:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 01:32:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-13 01:32:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-13 01:32:40,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-13 01:32:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-13 01:32:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 01:32:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-13 01:32:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 01:32:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 01:32:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-13 01:32:40,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 01:32:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 01:32:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 01:32:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-13 01:32:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-13 01:32:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2021-11-13 01:32:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2021-11-13 01:32:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-11-13 01:32:40,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-11-13 01:32:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 01:32:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-13 01:32:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 01:32:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 01:32:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2021-11-13 01:32:40,420 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2021-11-13 01:32:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 01:32:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 01:32:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-11-13 01:32:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-11-13 01:32:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-13 01:32:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-13 01:32:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 01:32:40,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-13 01:32:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 01:32:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-13 01:32:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 01:32:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 01:32:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-13 01:32:40,422 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-13 01:32:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 01:32:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-13 01:32:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-13 01:32:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-13 01:32:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 01:32:40,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-13 01:32:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-13 01:32:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-13 01:32:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-13 01:32:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-13 01:32:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 01:32:40,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 01:32:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-13 01:32:40,424 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-13 01:32:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 01:32:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-13 01:32:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-13 01:32:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-13 01:32:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2021-11-13 01:32:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2021-11-13 01:32:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 01:32:40,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 01:32:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 01:32:40,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-13 01:32:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 01:32:40,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 01:32:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-13 01:32:40,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-13 01:32:44,007 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 01:33:29,455 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 01:33:29,456 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 01:33:29,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:29 BoogieIcfgContainer [2021-11-13 01:33:29,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 01:33:29,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 01:33:29,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 01:33:29,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 01:33:29,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:32:31" (1/3) ... [2021-11-13 01:33:29,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6b4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:29, skipping insertion in model container [2021-11-13 01:33:29,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:32:39" (2/3) ... [2021-11-13 01:33:29,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c6b4baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:33:29, skipping insertion in model container [2021-11-13 01:33:29,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:33:29" (3/3) ... [2021-11-13 01:33:29,469 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-13 01:33:29,474 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 01:33:29,474 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-13 01:33:29,533 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 01:33:29,539 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 [2021-11-13 01:33:29,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-13 01:33:29,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 1751 states, 1205 states have (on average 1.3053941908713693) internal successors, (1573), 1261 states have internal predecessors, (1573), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-13 01:33:29,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 01:33:29,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:29,612 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:29,612 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:29,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash -568275191, now seen corresponding path program 1 times [2021-11-13 01:33:29,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:29,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1109571874] [2021-11-13 01:33:29,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:29,637 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:29,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:29,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:29,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 01:33:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:31,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:31,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:32,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:32,620 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:32,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1109571874] [2021-11-13 01:33:32,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1109571874] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:32,621 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:32,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-13 01:33:32,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840205761] [2021-11-13 01:33:32,623 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:32,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:32,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:32,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:32,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:32,673 INFO L87 Difference]: Start difference. First operand has 1751 states, 1205 states have (on average 1.3053941908713693) internal successors, (1573), 1261 states have internal predecessors, (1573), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:33,376 INFO L93 Difference]: Finished difference Result 5225 states and 7403 transitions. [2021-11-13 01:33:33,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 75 [2021-11-13 01:33:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:33,434 INFO L225 Difference]: With dead ends: 5225 [2021-11-13 01:33:33,434 INFO L226 Difference]: Without dead ends: 3463 [2021-11-13 01:33:33,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:33,461 INFO L933 BasicCegarLoop]: 4347 mSDtfsCounter, 2340 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 200.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2340 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 53.53ms SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 241.80ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:33,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2340 Valid, 6656 Invalid, 110 Unknown, 0 Unchecked, 53.53ms Time], IncrementalHoareTripleChecker [54 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 241.80ms Time] [2021-11-13 01:33:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2021-11-13 01:33:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3262. [2021-11-13 01:33:33,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3262 states, 2269 states have (on average 1.2723666813574261) internal successors, (2887), 2351 states have internal predecessors, (2887), 789 states have call successors, (789), 178 states have call predecessors, (789), 177 states have return successors, (814), 768 states have call predecessors, (814), 787 states have call successors, (814) [2021-11-13 01:33:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3262 states to 3262 states and 4490 transitions. [2021-11-13 01:33:33,818 INFO L78 Accepts]: Start accepts. Automaton has 3262 states and 4490 transitions. Word has length 75 [2021-11-13 01:33:33,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:33,819 INFO L470 AbstractCegarLoop]: Abstraction has 3262 states and 4490 transitions. [2021-11-13 01:33:33,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 3262 states and 4490 transitions. [2021-11-13 01:33:33,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 01:33:33,833 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:33,833 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:33,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:34,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:34,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:34,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:34,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1300242617, now seen corresponding path program 1 times [2021-11-13 01:33:34,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:34,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414023854] [2021-11-13 01:33:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:34,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:34,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:34,056 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:34,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 01:33:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:36,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:36,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:36,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:36,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:36,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414023854] [2021-11-13 01:33:36,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414023854] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:36,707 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:36,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-13 01:33:36,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106792439] [2021-11-13 01:33:36,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:36,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:36,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:36,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:36,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:36,710 INFO L87 Difference]: Start difference. First operand 3262 states and 4490 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:36,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:36,908 INFO L93 Difference]: Finished difference Result 4961 states and 6762 transitions. [2021-11-13 01:33:36,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:36,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 75 [2021-11-13 01:33:36,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:36,925 INFO L225 Difference]: With dead ends: 4961 [2021-11-13 01:33:36,925 INFO L226 Difference]: Without dead ends: 1735 [2021-11-13 01:33:36,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:36,944 INFO L933 BasicCegarLoop]: 2327 mSDtfsCounter, 2318 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.19ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:36,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2318 Valid, 2327 Invalid, 1 Unknown, 0 Unchecked, 9.90ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 13.19ms Time] [2021-11-13 01:33:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-11-13 01:33:37,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1735. [2021-11-13 01:33:37,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1195 states have (on average 1.2552301255230125) internal successors, (1500), 1249 states have internal predecessors, (1500), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2328 transitions. [2021-11-13 01:33:37,148 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2328 transitions. Word has length 75 [2021-11-13 01:33:37,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:37,150 INFO L470 AbstractCegarLoop]: Abstraction has 1735 states and 2328 transitions. [2021-11-13 01:33:37,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:37,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2328 transitions. [2021-11-13 01:33:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 01:33:37,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:37,153 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:37,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:37,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:37,369 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:37,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:37,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1308544841, now seen corresponding path program 1 times [2021-11-13 01:33:37,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:37,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886190956] [2021-11-13 01:33:37,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:37,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:37,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:37,374 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:37,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 01:33:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:39,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:39,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:39,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:40,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:40,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886190956] [2021-11-13 01:33:40,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886190956] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:40,001 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:40,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-13 01:33:40,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169623555] [2021-11-13 01:33:40,002 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:40,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:33:40,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:40,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:33:40,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:40,003 INFO L87 Difference]: Start difference. First operand 1735 states and 2328 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:40,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:40,137 INFO L93 Difference]: Finished difference Result 3462 states and 4646 transitions. [2021-11-13 01:33:40,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:40,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 75 [2021-11-13 01:33:40,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:40,153 INFO L225 Difference]: With dead ends: 3462 [2021-11-13 01:33:40,153 INFO L226 Difference]: Without dead ends: 1735 [2021-11-13 01:33:40,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:33:40,168 INFO L933 BasicCegarLoop]: 2326 mSDtfsCounter, 2316 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.73ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:40,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2316 Valid, 2326 Invalid, 1 Unknown, 0 Unchecked, 8.88ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 4.73ms Time] [2021-11-13 01:33:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2021-11-13 01:33:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1735. [2021-11-13 01:33:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1195 states have (on average 1.2543933054393306) internal successors, (1499), 1249 states have internal predecessors, (1499), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:40,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2327 transitions. [2021-11-13 01:33:40,286 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2327 transitions. Word has length 75 [2021-11-13 01:33:40,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:40,288 INFO L470 AbstractCegarLoop]: Abstraction has 1735 states and 2327 transitions. [2021-11-13 01:33:40,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-13 01:33:40,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2327 transitions. [2021-11-13 01:33:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 01:33:40,291 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:40,291 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:40,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:40,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:40,508 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:40,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:40,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1254151943, now seen corresponding path program 1 times [2021-11-13 01:33:40,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:40,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236213323] [2021-11-13 01:33:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:40,511 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:40,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:40,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:40,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 01:33:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:42,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:42,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:42,871 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:42,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:43,179 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:43,179 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:43,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236213323] [2021-11-13 01:33:43,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236213323] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:43,180 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:43,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 01:33:43,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492112166] [2021-11-13 01:33:43,180 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:43,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:43,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:43,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:43,182 INFO L87 Difference]: Start difference. First operand 1735 states and 2327 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:43,343 INFO L93 Difference]: Finished difference Result 3455 states and 4633 transitions. [2021-11-13 01:33:43,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:43,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 75 [2021-11-13 01:33:43,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:43,362 INFO L225 Difference]: With dead ends: 3455 [2021-11-13 01:33:43,362 INFO L226 Difference]: Without dead ends: 1734 [2021-11-13 01:33:43,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:43,375 INFO L933 BasicCegarLoop]: 2316 mSDtfsCounter, 2312 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2312 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.52ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.46ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:43,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2312 Valid, 2316 Invalid, 10 Unknown, 0 Unchecked, 9.52ms Time], IncrementalHoareTripleChecker [5 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 21.46ms Time] [2021-11-13 01:33:43,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2021-11-13 01:33:43,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1734. [2021-11-13 01:33:43,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1194 states have (on average 1.2504187604690118) internal successors, (1493), 1248 states have internal predecessors, (1493), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:43,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2321 transitions. [2021-11-13 01:33:43,494 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2321 transitions. Word has length 75 [2021-11-13 01:33:43,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:43,495 INFO L470 AbstractCegarLoop]: Abstraction has 1734 states and 2321 transitions. [2021-11-13 01:33:43,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2321 transitions. [2021-11-13 01:33:43,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:33:43,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:43,496 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:43,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:43,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:43,717 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:43,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1230206929, now seen corresponding path program 1 times [2021-11-13 01:33:43,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:43,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649266518] [2021-11-13 01:33:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:43,720 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:43,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:43,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:43,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 01:33:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:45,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:45,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:45,921 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:45,921 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:46,244 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:46,245 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:46,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649266518] [2021-11-13 01:33:46,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649266518] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:46,245 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:46,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 01:33:46,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934844283] [2021-11-13 01:33:46,245 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:46,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:46,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:46,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:46,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:46,247 INFO L87 Difference]: Start difference. First operand 1734 states and 2321 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:46,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:46,444 INFO L93 Difference]: Finished difference Result 3441 states and 4614 transitions. [2021-11-13 01:33:46,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:46,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 79 [2021-11-13 01:33:46,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:46,461 INFO L225 Difference]: With dead ends: 3441 [2021-11-13 01:33:46,461 INFO L226 Difference]: Without dead ends: 1722 [2021-11-13 01:33:46,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:46,472 INFO L933 BasicCegarLoop]: 2297 mSDtfsCounter, 2285 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2285 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.55ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:46,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2285 Valid, 2297 Invalid, 6 Unknown, 0 Unchecked, 9.55ms Time], IncrementalHoareTripleChecker [3 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 22.17ms Time] [2021-11-13 01:33:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-11-13 01:33:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2021-11-13 01:33:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1182 states have (on average 1.245346869712352) internal successors, (1472), 1236 states have internal predecessors, (1472), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2300 transitions. [2021-11-13 01:33:46,591 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2300 transitions. Word has length 79 [2021-11-13 01:33:46,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:46,592 INFO L470 AbstractCegarLoop]: Abstraction has 1722 states and 2300 transitions. [2021-11-13 01:33:46,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:46,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2300 transitions. [2021-11-13 01:33:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:33:46,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:46,599 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:46,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:46,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:46,813 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:46,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:46,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1103185709, now seen corresponding path program 1 times [2021-11-13 01:33:46,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:46,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73074906] [2021-11-13 01:33:46,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:46,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:46,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:46,817 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:46,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-13 01:33:48,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:48,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:48,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:49,090 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:49,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:49,395 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:49,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:49,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73074906] [2021-11-13 01:33:49,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73074906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:49,395 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:49,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 01:33:49,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787987121] [2021-11-13 01:33:49,396 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:49,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:49,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:49,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:49,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:49,397 INFO L87 Difference]: Start difference. First operand 1722 states and 2300 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:49,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:49,571 INFO L93 Difference]: Finished difference Result 3428 states and 4589 transitions. [2021-11-13 01:33:49,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:49,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 79 [2021-11-13 01:33:49,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:49,585 INFO L225 Difference]: With dead ends: 3428 [2021-11-13 01:33:49,585 INFO L226 Difference]: Without dead ends: 1722 [2021-11-13 01:33:49,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:49,631 INFO L933 BasicCegarLoop]: 2296 mSDtfsCounter, 2282 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 2296 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.66ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:49,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2282 Valid, 2296 Invalid, 4 Unknown, 0 Unchecked, 9.14ms Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 27.66ms Time] [2021-11-13 01:33:49,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-11-13 01:33:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1722. [2021-11-13 01:33:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1722 states, 1182 states have (on average 1.2436548223350254) internal successors, (1470), 1236 states have internal predecessors, (1470), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:49,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2298 transitions. [2021-11-13 01:33:49,746 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2298 transitions. Word has length 79 [2021-11-13 01:33:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:49,747 INFO L470 AbstractCegarLoop]: Abstraction has 1722 states and 2298 transitions. [2021-11-13 01:33:49,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2298 transitions. [2021-11-13 01:33:49,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:33:49,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:49,749 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:49,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:49,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:49,973 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:49,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:49,974 INFO L85 PathProgramCache]: Analyzing trace with hash -901361775, now seen corresponding path program 1 times [2021-11-13 01:33:49,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:49,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848086275] [2021-11-13 01:33:49,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:49,975 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:49,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:49,976 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:49,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-13 01:33:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:51,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:51,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:52,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:52,390 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:52,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:52,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848086275] [2021-11-13 01:33:52,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848086275] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:52,391 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:52,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 01:33:52,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535593986] [2021-11-13 01:33:52,391 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:52,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:52,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:52,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:52,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:52,392 INFO L87 Difference]: Start difference. First operand 1722 states and 2298 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:33:54,186 INFO L93 Difference]: Finished difference Result 3425 states and 4582 transitions. [2021-11-13 01:33:54,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:33:54,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 79 [2021-11-13 01:33:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:33:54,200 INFO L225 Difference]: With dead ends: 3425 [2021-11-13 01:33:54,200 INFO L226 Difference]: Without dead ends: 1720 [2021-11-13 01:33:54,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:54,210 INFO L933 BasicCegarLoop]: 2292 mSDtfsCounter, 3725 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1276.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3725 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.45ms SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1576.37ms IncrementalHoareTripleChecker+Time [2021-11-13 01:33:54,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3725 Valid, 2292 Invalid, 830 Unknown, 0 Unchecked, 20.45ms Time], IncrementalHoareTripleChecker [828 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1576.37ms Time] [2021-11-13 01:33:54,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2021-11-13 01:33:54,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1720. [2021-11-13 01:33:54,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1180 states have (on average 1.2423728813559323) internal successors, (1466), 1234 states have internal predecessors, (1466), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-13 01:33:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2294 transitions. [2021-11-13 01:33:54,339 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2294 transitions. Word has length 79 [2021-11-13 01:33:54,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:33:54,339 INFO L470 AbstractCegarLoop]: Abstraction has 1720 states and 2294 transitions. [2021-11-13 01:33:54,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:33:54,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2294 transitions. [2021-11-13 01:33:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:33:54,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:33:54,341 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:33:54,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-13 01:33:54,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:33:54,557 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:33:54,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:33:54,558 INFO L85 PathProgramCache]: Analyzing trace with hash -340661997, now seen corresponding path program 1 times [2021-11-13 01:33:54,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:33:54,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257640715] [2021-11-13 01:33:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:33:54,560 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:33:54,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:33:54,562 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:33:54,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 01:33:56,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:33:56,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 1223 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:33:56,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:33:56,632 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-13 01:33:56,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:33:56,917 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:33:56,917 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:33:56,917 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257640715] [2021-11-13 01:33:56,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257640715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:33:56,918 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:33:56,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-13 01:33:56,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660164566] [2021-11-13 01:33:56,918 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:33:56,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:33:56,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:33:56,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:33:56,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:33:56,919 INFO L87 Difference]: Start difference. First operand 1720 states and 2294 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:34:02,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:02,324 INFO L93 Difference]: Finished difference Result 5072 states and 6779 transitions. [2021-11-13 01:34:02,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:02,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 79 [2021-11-13 01:34:02,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:02,352 INFO L225 Difference]: With dead ends: 5072 [2021-11-13 01:34:02,352 INFO L226 Difference]: Without dead ends: 3370 [2021-11-13 01:34:02,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:34:02,364 INFO L933 BasicCegarLoop]: 2678 mSDtfsCounter, 5887 mSDsluCounter, 1426 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4264.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5887 SdHoareTripleChecker+Valid, 4104 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.23ms SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5023.84ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:02,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5887 Valid, 4104 Invalid, 1647 Unknown, 0 Unchecked, 32.23ms Time], IncrementalHoareTripleChecker [807 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 5023.84ms Time] [2021-11-13 01:34:02,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2021-11-13 01:34:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 3162. [2021-11-13 01:34:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 2188 states have (on average 1.2477148080438756) internal successors, (2730), 2270 states have internal predecessors, (2730), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 4275 transitions. [2021-11-13 01:34:02,663 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 4275 transitions. Word has length 79 [2021-11-13 01:34:02,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:02,664 INFO L470 AbstractCegarLoop]: Abstraction has 3162 states and 4275 transitions. [2021-11-13 01:34:02,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-13 01:34:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 4275 transitions. [2021-11-13 01:34:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 01:34:02,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:02,666 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:02,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:02,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:02,881 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:02,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:02,882 INFO L85 PathProgramCache]: Analyzing trace with hash 93067089, now seen corresponding path program 1 times [2021-11-13 01:34:02,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:02,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [916530009] [2021-11-13 01:34:02,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:02,883 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:02,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:02,884 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:02,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 01:34:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:04,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:04,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:05,091 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:05,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:05,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:05,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [916530009] [2021-11-13 01:34:05,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [916530009] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:05,480 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:05,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:05,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583414760] [2021-11-13 01:34:05,480 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:05,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:05,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:05,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:05,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:05,481 INFO L87 Difference]: Start difference. First operand 3162 states and 4275 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 01:34:05,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:05,752 INFO L93 Difference]: Finished difference Result 3162 states and 4275 transitions. [2021-11-13 01:34:05,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:05,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 79 [2021-11-13 01:34:05,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:05,778 INFO L225 Difference]: With dead ends: 3162 [2021-11-13 01:34:05,778 INFO L226 Difference]: Without dead ends: 3160 [2021-11-13 01:34:05,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:05,783 INFO L933 BasicCegarLoop]: 2289 mSDtfsCounter, 2227 mSDsluCounter, 4574 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 6863 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.51ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:05,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2229 Valid, 6863 Invalid, 2 Unknown, 0 Unchecked, 15.65ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 14.51ms Time] [2021-11-13 01:34:05,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2021-11-13 01:34:06,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 3160. [2021-11-13 01:34:06,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2187 states have (on average 1.247370827617741) internal successors, (2728), 2268 states have internal predecessors, (2728), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:06,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4273 transitions. [2021-11-13 01:34:06,053 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4273 transitions. Word has length 79 [2021-11-13 01:34:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:06,056 INFO L470 AbstractCegarLoop]: Abstraction has 3160 states and 4273 transitions. [2021-11-13 01:34:06,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-13 01:34:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4273 transitions. [2021-11-13 01:34:06,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 01:34:06,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:06,058 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:06,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:06,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:06,285 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:06,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:06,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1468122798, now seen corresponding path program 1 times [2021-11-13 01:34:06,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:06,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153102954] [2021-11-13 01:34:06,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:06,287 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:06,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:06,288 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-13 01:34:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:08,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:08,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:08,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:08,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:08,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153102954] [2021-11-13 01:34:08,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153102954] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:08,917 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:08,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:08,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753796587] [2021-11-13 01:34:08,917 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:08,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:08,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:08,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:08,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:08,918 INFO L87 Difference]: Start difference. First operand 3160 states and 4273 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-11-13 01:34:09,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:09,172 INFO L93 Difference]: Finished difference Result 3160 states and 4273 transitions. [2021-11-13 01:34:09,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:09,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 85 [2021-11-13 01:34:09,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:09,199 INFO L225 Difference]: With dead ends: 3160 [2021-11-13 01:34:09,199 INFO L226 Difference]: Without dead ends: 3158 [2021-11-13 01:34:09,202 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:09,203 INFO L933 BasicCegarLoop]: 2287 mSDtfsCounter, 2222 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 4572 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.68ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:09,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2224 Valid, 4572 Invalid, 2 Unknown, 0 Unchecked, 11.16ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 17.68ms Time] [2021-11-13 01:34:09,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3158 states. [2021-11-13 01:34:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3158 to 3158. [2021-11-13 01:34:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 2186 states have (on average 1.2470265324794145) internal successors, (2726), 2266 states have internal predecessors, (2726), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 4271 transitions. [2021-11-13 01:34:09,509 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 4271 transitions. Word has length 85 [2021-11-13 01:34:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:09,509 INFO L470 AbstractCegarLoop]: Abstraction has 3158 states and 4271 transitions. [2021-11-13 01:34:09,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-11-13 01:34:09,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 4271 transitions. [2021-11-13 01:34:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-13 01:34:09,513 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:09,514 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:09,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:09,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:09,737 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:09,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:09,738 INFO L85 PathProgramCache]: Analyzing trace with hash 473245616, now seen corresponding path program 1 times [2021-11-13 01:34:09,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:09,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810077848] [2021-11-13 01:34:09,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:09,740 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:09,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:09,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:09,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-13 01:34:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:11,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:11,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:12,006 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:12,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:12,446 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:12,447 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:12,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810077848] [2021-11-13 01:34:12,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810077848] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:12,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:12,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:12,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772739557] [2021-11-13 01:34:12,448 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:12,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:12,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:12,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:12,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:12,449 INFO L87 Difference]: Start difference. First operand 3158 states and 4271 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2021-11-13 01:34:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:12,768 INFO L93 Difference]: Finished difference Result 3158 states and 4271 transitions. [2021-11-13 01:34:12,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:12,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 91 [2021-11-13 01:34:12,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:12,814 INFO L225 Difference]: With dead ends: 3158 [2021-11-13 01:34:12,815 INFO L226 Difference]: Without dead ends: 3156 [2021-11-13 01:34:12,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:12,818 INFO L933 BasicCegarLoop]: 2285 mSDtfsCounter, 2211 mSDsluCounter, 4566 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2213 SdHoareTripleChecker+Valid, 6851 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.54ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:12,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2213 Valid, 6851 Invalid, 2 Unknown, 0 Unchecked, 14.56ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.54ms Time] [2021-11-13 01:34:12,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3156 states. [2021-11-13 01:34:13,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3156 to 3156. [2021-11-13 01:34:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 2185 states have (on average 1.2466819221967964) internal successors, (2724), 2264 states have internal predecessors, (2724), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 4269 transitions. [2021-11-13 01:34:13,141 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 4269 transitions. Word has length 91 [2021-11-13 01:34:13,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:13,143 INFO L470 AbstractCegarLoop]: Abstraction has 3156 states and 4269 transitions. [2021-11-13 01:34:13,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2021-11-13 01:34:13,144 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 4269 transitions. [2021-11-13 01:34:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-13 01:34:13,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:13,147 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:13,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:13,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:13,349 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:13,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:13,350 INFO L85 PathProgramCache]: Analyzing trace with hash 237494877, now seen corresponding path program 1 times [2021-11-13 01:34:13,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:13,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722837113] [2021-11-13 01:34:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:13,353 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:13,354 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:13,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 01:34:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:15,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:15,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:15,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:16,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:16,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722837113] [2021-11-13 01:34:16,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722837113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:16,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:16,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:16,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744635030] [2021-11-13 01:34:16,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:16,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:16,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:16,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:16,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:16,255 INFO L87 Difference]: Start difference. First operand 3156 states and 4269 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-13 01:34:16,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:16,526 INFO L93 Difference]: Finished difference Result 3156 states and 4269 transitions. [2021-11-13 01:34:16,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:16,526 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 97 [2021-11-13 01:34:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:16,543 INFO L225 Difference]: With dead ends: 3156 [2021-11-13 01:34:16,543 INFO L226 Difference]: Without dead ends: 3154 [2021-11-13 01:34:16,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:16,547 INFO L933 BasicCegarLoop]: 2283 mSDtfsCounter, 2206 mSDsluCounter, 2281 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.33ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:16,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 4564 Invalid, 2 Unknown, 0 Unchecked, 10.28ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 6.33ms Time] [2021-11-13 01:34:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2021-11-13 01:34:16,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3154. [2021-11-13 01:34:16,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 2184 states have (on average 1.2463369963369964) internal successors, (2722), 2262 states have internal predecessors, (2722), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:16,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 4267 transitions. [2021-11-13 01:34:16,876 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 4267 transitions. Word has length 97 [2021-11-13 01:34:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:16,877 INFO L470 AbstractCegarLoop]: Abstraction has 3154 states and 4267 transitions. [2021-11-13 01:34:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-13 01:34:16,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 4267 transitions. [2021-11-13 01:34:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-13 01:34:16,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:16,901 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:16,934 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:17,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:17,125 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:17,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:17,125 INFO L85 PathProgramCache]: Analyzing trace with hash 254006595, now seen corresponding path program 1 times [2021-11-13 01:34:17,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:17,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944955568] [2021-11-13 01:34:17,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:17,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:17,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:17,128 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:17,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 01:34:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:18,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:18,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:19,606 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:19,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:20,000 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:20,000 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944955568] [2021-11-13 01:34:20,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944955568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:20,000 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:20,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:20,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544429466] [2021-11-13 01:34:20,001 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:20,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:20,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:20,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:20,002 INFO L87 Difference]: Start difference. First operand 3154 states and 4267 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2021-11-13 01:34:20,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:20,217 INFO L93 Difference]: Finished difference Result 3154 states and 4267 transitions. [2021-11-13 01:34:20,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:20,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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 103 [2021-11-13 01:34:20,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:20,232 INFO L225 Difference]: With dead ends: 3154 [2021-11-13 01:34:20,232 INFO L226 Difference]: Without dead ends: 3152 [2021-11-13 01:34:20,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:20,235 INFO L933 BasicCegarLoop]: 2281 mSDtfsCounter, 2195 mSDsluCounter, 4558 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 6839 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.78ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:20,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2197 Valid, 6839 Invalid, 2 Unknown, 0 Unchecked, 9.38ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.78ms Time] [2021-11-13 01:34:20,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3152 states. [2021-11-13 01:34:20,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3152 to 3152. [2021-11-13 01:34:20,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3152 states, 2183 states have (on average 1.2459917544663308) internal successors, (2720), 2260 states have internal predecessors, (2720), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3152 states to 3152 states and 4265 transitions. [2021-11-13 01:34:20,560 INFO L78 Accepts]: Start accepts. Automaton has 3152 states and 4265 transitions. Word has length 103 [2021-11-13 01:34:20,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:20,561 INFO L470 AbstractCegarLoop]: Abstraction has 3152 states and 4265 transitions. [2021-11-13 01:34:20,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 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) [2021-11-13 01:34:20,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3152 states and 4265 transitions. [2021-11-13 01:34:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-13 01:34:20,564 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:20,564 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:20,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:20,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:20,785 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:20,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:20,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1937295103, now seen corresponding path program 1 times [2021-11-13 01:34:20,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:20,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485294793] [2021-11-13 01:34:20,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:20,787 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:20,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:20,788 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:20,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 01:34:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:22,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:22,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:23,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:23,491 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:23,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:23,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485294793] [2021-11-13 01:34:23,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485294793] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:23,492 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:23,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:23,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660694333] [2021-11-13 01:34:23,492 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:23,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:23,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:23,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:23,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:23,494 INFO L87 Difference]: Start difference. First operand 3152 states and 4265 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2021-11-13 01:34:23,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:23,742 INFO L93 Difference]: Finished difference Result 3152 states and 4265 transitions. [2021-11-13 01:34:23,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:23,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 109 [2021-11-13 01:34:23,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:23,754 INFO L225 Difference]: With dead ends: 3152 [2021-11-13 01:34:23,755 INFO L226 Difference]: Without dead ends: 3150 [2021-11-13 01:34:23,756 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:23,757 INFO L933 BasicCegarLoop]: 2279 mSDtfsCounter, 2190 mSDsluCounter, 2277 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.72ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.48ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:23,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2192 Valid, 4556 Invalid, 2 Unknown, 0 Unchecked, 6.72ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.48ms Time] [2021-11-13 01:34:23,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2021-11-13 01:34:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 3150. [2021-11-13 01:34:24,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 2182 states have (on average 1.245646196150321) internal successors, (2718), 2258 states have internal predecessors, (2718), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:24,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4263 transitions. [2021-11-13 01:34:24,059 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4263 transitions. Word has length 109 [2021-11-13 01:34:24,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:24,059 INFO L470 AbstractCegarLoop]: Abstraction has 3150 states and 4263 transitions. [2021-11-13 01:34:24,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2021-11-13 01:34:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4263 transitions. [2021-11-13 01:34:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-13 01:34:24,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:24,062 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:24,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:24,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:24,276 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:24,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:24,276 INFO L85 PathProgramCache]: Analyzing trace with hash -682899368, now seen corresponding path program 1 times [2021-11-13 01:34:24,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:24,278 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1754155982] [2021-11-13 01:34:24,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:24,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:24,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:24,280 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:24,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 01:34:26,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:26,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:26,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:26,804 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:26,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:27,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:27,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1754155982] [2021-11-13 01:34:27,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1754155982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:27,232 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:27,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:27,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862429663] [2021-11-13 01:34:27,232 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:27,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:27,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:27,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:27,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:27,234 INFO L87 Difference]: Start difference. First operand 3150 states and 4263 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2021-11-13 01:34:27,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:27,516 INFO L93 Difference]: Finished difference Result 3150 states and 4263 transitions. [2021-11-13 01:34:27,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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 115 [2021-11-13 01:34:27,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:27,528 INFO L225 Difference]: With dead ends: 3150 [2021-11-13 01:34:27,528 INFO L226 Difference]: Without dead ends: 3148 [2021-11-13 01:34:27,530 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 [2021-11-13 01:34:27,530 INFO L933 BasicCegarLoop]: 2277 mSDtfsCounter, 2182 mSDsluCounter, 2275 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 4552 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.92ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:27,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2184 Valid, 4552 Invalid, 2 Unknown, 0 Unchecked, 10.00ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.92ms Time] [2021-11-13 01:34:27,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2021-11-13 01:34:27,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2021-11-13 01:34:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 2181 states have (on average 1.245300320953691) internal successors, (2716), 2256 states have internal predecessors, (2716), 770 states have call successors, (770), 178 states have call predecessors, (770), 177 states have return successors, (775), 748 states have call predecessors, (775), 768 states have call successors, (775) [2021-11-13 01:34:27,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 4261 transitions. [2021-11-13 01:34:27,937 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 4261 transitions. Word has length 115 [2021-11-13 01:34:27,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:27,938 INFO L470 AbstractCegarLoop]: Abstraction has 3148 states and 4261 transitions. [2021-11-13 01:34:27,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2021-11-13 01:34:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 4261 transitions. [2021-11-13 01:34:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 01:34:27,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:27,941 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:27,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:28,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:28,165 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:28,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1128863081, now seen corresponding path program 1 times [2021-11-13 01:34:28,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:28,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514568185] [2021-11-13 01:34:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:28,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:28,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:28,169 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:28,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-13 01:34:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:30,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 01:34:30,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-13 01:34:31,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:32,562 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-13 01:34:32,562 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:32,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514568185] [2021-11-13 01:34:32,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514568185] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:34:32,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:34:32,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2021-11-13 01:34:32,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060886174] [2021-11-13 01:34:32,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:32,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 01:34:32,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:32,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 01:34:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-13 01:34:32,564 INFO L87 Difference]: Start difference. First operand 3148 states and 4261 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2021-11-13 01:34:34,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:34,966 INFO L93 Difference]: Finished difference Result 4751 states and 6387 transitions. [2021-11-13 01:34:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 01:34:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 141 [2021-11-13 01:34:34,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:34,986 INFO L225 Difference]: With dead ends: 4751 [2021-11-13 01:34:34,986 INFO L226 Difference]: Without dead ends: 3199 [2021-11-13 01:34:34,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=155, Invalid=901, Unknown=0, NotChecked=0, Total=1056 [2021-11-13 01:34:34,998 INFO L933 BasicCegarLoop]: 2274 mSDtfsCounter, 44 mSDsluCounter, 27071 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1331.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 29345 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.29ms SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1432.85ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:34,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 29345 Invalid, 669 Unknown, 0 Unchecked, 50.29ms Time], IncrementalHoareTripleChecker [170 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1432.85ms Time] [2021-11-13 01:34:35,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3199 states. [2021-11-13 01:34:35,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3199 to 3172. [2021-11-13 01:34:35,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 2197 states have (on average 1.243513882567137) internal successors, (2732), 2272 states have internal predecessors, (2732), 778 states have call successors, (778), 178 states have call predecessors, (778), 177 states have return successors, (783), 756 states have call predecessors, (783), 776 states have call successors, (783) [2021-11-13 01:34:35,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4293 transitions. [2021-11-13 01:34:35,364 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4293 transitions. Word has length 141 [2021-11-13 01:34:35,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:35,364 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 4293 transitions. [2021-11-13 01:34:35,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 13 states have internal predecessors, (76), 6 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2021-11-13 01:34:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4293 transitions. [2021-11-13 01:34:35,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 01:34:35,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:35,368 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:35,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:35,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:35,586 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:35,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash -904530965, now seen corresponding path program 1 times [2021-11-13 01:34:35,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:35,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881487314] [2021-11-13 01:34:35,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:35,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:35,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:35,589 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:35,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-13 01:34:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:37,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-13 01:34:37,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 25 proven. 3 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-13 01:34:38,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-13 01:34:39,134 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:39,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881487314] [2021-11-13 01:34:39,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881487314] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:34:39,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1917224336] [2021-11-13 01:34:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:39,134 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:34:39,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:34:39,136 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:34:39,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-11-13 01:34:41,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:41,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1392 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-13 01:34:41,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:42,218 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-13 01:34:42,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:42,759 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-11-13 01:34:42,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1917224336] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:42,760 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:34:42,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [9, 8] total 14 [2021-11-13 01:34:42,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252190956] [2021-11-13 01:34:42,760 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:42,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 01:34:42,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:42,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 01:34:42,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-11-13 01:34:42,762 INFO L87 Difference]: Start difference. First operand 3172 states and 4293 transitions. Second operand has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 01:34:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:43,338 INFO L93 Difference]: Finished difference Result 4711 states and 6327 transitions. [2021-11-13 01:34:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:34:43,340 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 4 states have call successors, (26) Word has length 141 [2021-11-13 01:34:43,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:43,360 INFO L225 Difference]: With dead ends: 4711 [2021-11-13 01:34:43,360 INFO L226 Difference]: Without dead ends: 3201 [2021-11-13 01:34:43,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 547 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-13 01:34:43,370 INFO L933 BasicCegarLoop]: 2323 mSDtfsCounter, 210 mSDsluCounter, 15689 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 76.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 18012 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 85.17ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:43,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [281 Valid, 18012 Invalid, 17 Unknown, 0 Unchecked, 27.78ms Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 85.17ms Time] [2021-11-13 01:34:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2021-11-13 01:34:43,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3172. [2021-11-13 01:34:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 2197 states have (on average 1.242603550295858) internal successors, (2730), 2270 states have internal predecessors, (2730), 778 states have call successors, (778), 178 states have call predecessors, (778), 177 states have return successors, (783), 756 states have call predecessors, (783), 776 states have call successors, (783) [2021-11-13 01:34:43,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4291 transitions. [2021-11-13 01:34:43,702 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4291 transitions. Word has length 141 [2021-11-13 01:34:43,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:43,703 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 4291 transitions. [2021-11-13 01:34:43,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.2) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (27), 2 states have call predecessors, (27), 4 states have return successors, (26), 6 states have call predecessors, (26), 4 states have call successors, (26) [2021-11-13 01:34:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4291 transitions. [2021-11-13 01:34:43,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-13 01:34:43,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:43,706 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:43,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:44,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:44,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:44,122 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:44,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash -968849028, now seen corresponding path program 1 times [2021-11-13 01:34:44,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:44,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062467200] [2021-11-13 01:34:44,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:44,124 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:44,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:44,127 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:44,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-13 01:34:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:45,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 01:34:45,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:46,671 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 01:34:46,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-13 01:34:47,369 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:47,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062467200] [2021-11-13 01:34:47,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062467200] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:47,370 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:47,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 17 [2021-11-13 01:34:47,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275425511] [2021-11-13 01:34:47,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:47,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-13 01:34:47,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:47,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-13 01:34:47,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-13 01:34:47,372 INFO L87 Difference]: Start difference. First operand 3172 states and 4291 transitions. Second operand has 17 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 7 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-13 01:34:49,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:49,648 INFO L93 Difference]: Finished difference Result 3326 states and 4446 transitions. [2021-11-13 01:34:49,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 01:34:49,649 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 7 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 121 [2021-11-13 01:34:49,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:49,661 INFO L225 Difference]: With dead ends: 3326 [2021-11-13 01:34:49,662 INFO L226 Difference]: Without dead ends: 3176 [2021-11-13 01:34:49,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-11-13 01:34:49,665 INFO L933 BasicCegarLoop]: 2261 mSDtfsCounter, 1530 mSDsluCounter, 25023 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1340.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 27284 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 34.86ms SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1497.90ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:49,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1530 Valid, 27284 Invalid, 1029 Unknown, 0 Unchecked, 34.86ms Time], IncrementalHoareTripleChecker [556 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 1497.90ms Time] [2021-11-13 01:34:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3176 states. [2021-11-13 01:34:49,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3176 to 3172. [2021-11-13 01:34:49,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 2197 states have (on average 1.241693218024579) internal successors, (2728), 2270 states have internal predecessors, (2728), 778 states have call successors, (778), 178 states have call predecessors, (778), 177 states have return successors, (783), 756 states have call predecessors, (783), 776 states have call successors, (783) [2021-11-13 01:34:49,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 4289 transitions. [2021-11-13 01:34:49,998 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 4289 transitions. Word has length 121 [2021-11-13 01:34:50,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:50,001 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 4289 transitions. [2021-11-13 01:34:50,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 7.0625) internal successors, (113), 16 states have internal predecessors, (113), 7 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-13 01:34:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 4289 transitions. [2021-11-13 01:34:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-13 01:34:50,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:50,004 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:50,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:50,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:50,225 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:50,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:50,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2001262074, now seen corresponding path program 1 times [2021-11-13 01:34:50,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:50,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573011495] [2021-11-13 01:34:50,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:50,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:50,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:50,228 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:50,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-13 01:34:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:51,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:51,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:52,638 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:52,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:53,090 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:53,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573011495] [2021-11-13 01:34:53,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573011495] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:53,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:53,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:53,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505394730] [2021-11-13 01:34:53,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:53,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:53,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:53,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:53,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:53,092 INFO L87 Difference]: Start difference. First operand 3172 states and 4289 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, (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) [2021-11-13 01:34:53,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:53,326 INFO L93 Difference]: Finished difference Result 3172 states and 4289 transitions. [2021-11-13 01:34:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:53,326 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, (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 121 [2021-11-13 01:34:53,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:53,338 INFO L225 Difference]: With dead ends: 3172 [2021-11-13 01:34:53,338 INFO L226 Difference]: Without dead ends: 3170 [2021-11-13 01:34:53,341 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 [2021-11-13 01:34:53,342 INFO L933 BasicCegarLoop]: 2274 mSDtfsCounter, 2181 mSDsluCounter, 2268 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.95ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:53,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2183 Valid, 4542 Invalid, 2 Unknown, 0 Unchecked, 6.64ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.95ms Time] [2021-11-13 01:34:53,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2021-11-13 01:34:53,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3170. [2021-11-13 01:34:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2196 states have (on average 1.2413479052823315) internal successors, (2726), 2268 states have internal predecessors, (2726), 778 states have call successors, (778), 178 states have call predecessors, (778), 177 states have return successors, (783), 756 states have call predecessors, (783), 776 states have call successors, (783) [2021-11-13 01:34:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 4287 transitions. [2021-11-13 01:34:53,719 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 4287 transitions. Word has length 121 [2021-11-13 01:34:53,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:53,720 INFO L470 AbstractCegarLoop]: Abstraction has 3170 states and 4287 transitions. [2021-11-13 01:34:53,720 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, (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) [2021-11-13 01:34:53,720 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 4287 transitions. [2021-11-13 01:34:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-13 01:34:53,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:53,723 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:53,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:53,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:53,945 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:53,946 INFO L85 PathProgramCache]: Analyzing trace with hash -932355171, now seen corresponding path program 1 times [2021-11-13 01:34:53,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:53,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511862201] [2021-11-13 01:34:53,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:53,947 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:53,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:53,948 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:53,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-13 01:34:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:55,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:34:55,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:34:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:56,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:34:56,950 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:34:56,950 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:34:56,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511862201] [2021-11-13 01:34:56,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511862201] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:34:56,951 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:34:56,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:34:56,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369731407] [2021-11-13 01:34:56,951 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:34:56,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:34:56,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:34:56,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:34:56,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:34:56,952 INFO L87 Difference]: Start difference. First operand 3170 states and 4287 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2021-11-13 01:34:57,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:34:57,268 INFO L93 Difference]: Finished difference Result 3170 states and 4287 transitions. [2021-11-13 01:34:57,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:34:57,269 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 123 [2021-11-13 01:34:57,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:34:57,282 INFO L225 Difference]: With dead ends: 3170 [2021-11-13 01:34:57,282 INFO L226 Difference]: Without dead ends: 3168 [2021-11-13 01:34:57,284 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:34:57,285 INFO L933 BasicCegarLoop]: 2272 mSDtfsCounter, 2169 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.23ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.26ms IncrementalHoareTripleChecker+Time [2021-11-13 01:34:57,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2171 Valid, 4542 Invalid, 2 Unknown, 0 Unchecked, 7.23ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.26ms Time] [2021-11-13 01:34:57,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3168 states. [2021-11-13 01:34:57,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3168 to 3168. [2021-11-13 01:34:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3168 states, 2195 states have (on average 1.241002277904328) internal successors, (2724), 2266 states have internal predecessors, (2724), 778 states have call successors, (778), 178 states have call predecessors, (778), 177 states have return successors, (783), 756 states have call predecessors, (783), 776 states have call successors, (783) [2021-11-13 01:34:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3168 states to 3168 states and 4285 transitions. [2021-11-13 01:34:57,649 INFO L78 Accepts]: Start accepts. Automaton has 3168 states and 4285 transitions. Word has length 123 [2021-11-13 01:34:57,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:34:57,649 INFO L470 AbstractCegarLoop]: Abstraction has 3168 states and 4285 transitions. [2021-11-13 01:34:57,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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) [2021-11-13 01:34:57,650 INFO L276 IsEmpty]: Start isEmpty. Operand 3168 states and 4285 transitions. [2021-11-13 01:34:57,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-13 01:34:57,653 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:34:57,653 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:34:57,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-13 01:34:57,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:34:57,866 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:34:57,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:34:57,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1539177400, now seen corresponding path program 1 times [2021-11-13 01:34:57,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:34:57,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739320505] [2021-11-13 01:34:57,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:34:57,868 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:34:57,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:34:57,869 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:34:57,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-13 01:34:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:34:59,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:34:59,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:00,650 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-13 01:35:00,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2021-11-13 01:35:01,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:01,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739320505] [2021-11-13 01:35:01,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739320505] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:01,200 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:01,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-13 01:35:01,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952842882] [2021-11-13 01:35:01,201 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:01,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:35:01,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:01,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:35:01,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:35:01,202 INFO L87 Difference]: Start difference. First operand 3168 states and 4285 transitions. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 01:35:01,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:01,563 INFO L93 Difference]: Finished difference Result 4041 states and 5440 transitions. [2021-11-13 01:35:01,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:35:01,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 145 [2021-11-13 01:35:01,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:01,577 INFO L225 Difference]: With dead ends: 4041 [2021-11-13 01:35:01,577 INFO L226 Difference]: Without dead ends: 4039 [2021-11-13 01:35:01,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:35:01,581 INFO L933 BasicCegarLoop]: 2842 mSDtfsCounter, 1628 mSDsluCounter, 9670 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1629 SdHoareTripleChecker+Valid, 12512 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.20ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.86ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:01,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1629 Valid, 12512 Invalid, 8 Unknown, 0 Unchecked, 16.20ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 18.86ms Time] [2021-11-13 01:35:01,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2021-11-13 01:35:02,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 4035. [2021-11-13 01:35:02,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4035 states, 2791 states have (on average 1.2432819777857398) internal successors, (3470), 2869 states have internal predecessors, (3470), 980 states have call successors, (980), 248 states have call predecessors, (980), 247 states have return successors, (985), 956 states have call predecessors, (985), 978 states have call successors, (985) [2021-11-13 01:35:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 5435 transitions. [2021-11-13 01:35:02,066 INFO L78 Accepts]: Start accepts. Automaton has 4035 states and 5435 transitions. Word has length 145 [2021-11-13 01:35:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:02,067 INFO L470 AbstractCegarLoop]: Abstraction has 4035 states and 5435 transitions. [2021-11-13 01:35:02,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (39), 4 states have call predecessors, (39), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-13 01:35:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 4035 states and 5435 transitions. [2021-11-13 01:35:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 01:35:02,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:02,070 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:35:02,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:02,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:02,293 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:02,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:02,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1853946059, now seen corresponding path program 1 times [2021-11-13 01:35:02,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:02,296 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170329422] [2021-11-13 01:35:02,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:02,296 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:02,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:02,298 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:02,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-13 01:35:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:04,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-13 01:35:04,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:05,838 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-13 01:35:05,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:07,920 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-13 01:35:07,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:07,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170329422] [2021-11-13 01:35:07,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170329422] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:35:07,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:35:07,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2021-11-13 01:35:07,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452756061] [2021-11-13 01:35:07,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:07,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 01:35:07,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:07,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 01:35:07,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-13 01:35:07,922 INFO L87 Difference]: Start difference. First operand 4035 states and 5435 transitions. Second operand has 13 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 5 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-13 01:35:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:10,052 INFO L93 Difference]: Finished difference Result 8336 states and 11290 transitions. [2021-11-13 01:35:10,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 01:35:10,053 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 5 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) Word has length 147 [2021-11-13 01:35:10,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:10,069 INFO L225 Difference]: With dead ends: 8336 [2021-11-13 01:35:10,069 INFO L226 Difference]: Without dead ends: 4332 [2021-11-13 01:35:10,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2021-11-13 01:35:10,090 INFO L933 BasicCegarLoop]: 2667 mSDtfsCounter, 527 mSDsluCounter, 23227 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1114.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 25894 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.13ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1240.30ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:10,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 25894 Invalid, 366 Unknown, 0 Unchecked, 39.13ms Time], IncrementalHoareTripleChecker [5 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 1240.30ms Time] [2021-11-13 01:35:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4332 states. [2021-11-13 01:35:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4332 to 4035. [2021-11-13 01:35:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4035 states, 2791 states have (on average 1.242923683267646) internal successors, (3469), 2868 states have internal predecessors, (3469), 980 states have call successors, (980), 248 states have call predecessors, (980), 247 states have return successors, (985), 956 states have call predecessors, (985), 978 states have call successors, (985) [2021-11-13 01:35:10,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4035 states to 4035 states and 5434 transitions. [2021-11-13 01:35:10,632 INFO L78 Accepts]: Start accepts. Automaton has 4035 states and 5434 transitions. Word has length 147 [2021-11-13 01:35:10,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:10,632 INFO L470 AbstractCegarLoop]: Abstraction has 4035 states and 5434 transitions. [2021-11-13 01:35:10,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 8.0) internal successors, (80), 9 states have internal predecessors, (80), 5 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (18), 6 states have call predecessors, (18), 5 states have call successors, (18) [2021-11-13 01:35:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4035 states and 5434 transitions. [2021-11-13 01:35:10,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-13 01:35:10,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:10,635 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:10,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:10,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:10,849 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:10,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1949074983, now seen corresponding path program 1 times [2021-11-13 01:35:10,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:10,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590159455] [2021-11-13 01:35:10,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:10,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:10,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:10,852 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:10,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-13 01:35:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:12,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:35:12,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:13,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:13,810 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:13,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590159455] [2021-11-13 01:35:13,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590159455] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:13,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:13,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:35:13,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244876304] [2021-11-13 01:35:13,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:13,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:35:13,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:13,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:35:13,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:35:13,813 INFO L87 Difference]: Start difference. First operand 4035 states and 5434 transitions. Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-11-13 01:35:14,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:14,115 INFO L93 Difference]: Finished difference Result 4035 states and 5434 transitions. [2021-11-13 01:35:14,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:35:14,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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 129 [2021-11-13 01:35:14,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:14,126 INFO L225 Difference]: With dead ends: 4035 [2021-11-13 01:35:14,126 INFO L226 Difference]: Without dead ends: 4033 [2021-11-13 01:35:14,128 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:35:14,128 INFO L933 BasicCegarLoop]: 2267 mSDtfsCounter, 2158 mSDsluCounter, 2265 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.58ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:14,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2160 Valid, 4532 Invalid, 2 Unknown, 0 Unchecked, 6.81ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.58ms Time] [2021-11-13 01:35:14,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4033 states. [2021-11-13 01:35:14,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4033 to 4033. [2021-11-13 01:35:14,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4033 states, 2790 states have (on average 1.242652329749104) internal successors, (3467), 2866 states have internal predecessors, (3467), 980 states have call successors, (980), 248 states have call predecessors, (980), 247 states have return successors, (985), 956 states have call predecessors, (985), 978 states have call successors, (985) [2021-11-13 01:35:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4033 states to 4033 states and 5432 transitions. [2021-11-13 01:35:14,665 INFO L78 Accepts]: Start accepts. Automaton has 4033 states and 5432 transitions. Word has length 129 [2021-11-13 01:35:14,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:14,666 INFO L470 AbstractCegarLoop]: Abstraction has 4033 states and 5432 transitions. [2021-11-13 01:35:14,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 5 states have internal predecessors, (131), 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) [2021-11-13 01:35:14,666 INFO L276 IsEmpty]: Start isEmpty. Operand 4033 states and 5432 transitions. [2021-11-13 01:35:14,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-13 01:35:14,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:14,669 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:35:14,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:14,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:14,893 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:14,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:14,894 INFO L85 PathProgramCache]: Analyzing trace with hash -836007048, now seen corresponding path program 1 times [2021-11-13 01:35:14,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:14,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [636779526] [2021-11-13 01:35:14,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:14,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:14,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:14,896 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:14,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-13 01:35:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:16,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:35:16,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:17,639 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-13 01:35:17,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:18,139 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-13 01:35:18,139 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:18,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [636779526] [2021-11-13 01:35:18,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [636779526] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:18,140 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:18,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-13 01:35:18,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352562267] [2021-11-13 01:35:18,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:18,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:35:18,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:18,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:35:18,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:35:18,142 INFO L87 Difference]: Start difference. First operand 4033 states and 5432 transitions. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 01:35:20,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:35:26,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:26,231 INFO L93 Difference]: Finished difference Result 14372 states and 19470 transitions. [2021-11-13 01:35:26,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:35:26,232 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 151 [2021-11-13 01:35:26,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:26,264 INFO L225 Difference]: With dead ends: 14372 [2021-11-13 01:35:26,264 INFO L226 Difference]: Without dead ends: 10374 [2021-11-13 01:35:26,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:35:26,274 INFO L933 BasicCegarLoop]: 3374 mSDtfsCounter, 4742 mSDsluCounter, 7896 mSDsCounter, 0 mSdLazyCounter, 1224 mSolverCounterSat, 619 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6331.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4942 SdHoareTripleChecker+Valid, 11270 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 36.59ms SdHoareTripleChecker+Time, 619 IncrementalHoareTripleChecker+Valid, 1224 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6888.97ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:26,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4942 Valid, 11270 Invalid, 1844 Unknown, 0 Unchecked, 36.59ms Time], IncrementalHoareTripleChecker [619 Valid, 1224 Invalid, 1 Unknown, 0 Unchecked, 6888.97ms Time] [2021-11-13 01:35:26,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10374 states. [2021-11-13 01:35:27,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10374 to 8830. [2021-11-13 01:35:27,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8830 states, 6106 states have (on average 1.2445135931870293) internal successors, (7599), 6254 states have internal predecessors, (7599), 2149 states have call successors, (2149), 559 states have call predecessors, (2149), 559 states have return successors, (2162), 2097 states have call predecessors, (2162), 2147 states have call successors, (2162) [2021-11-13 01:35:27,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8830 states to 8830 states and 11910 transitions. [2021-11-13 01:35:27,337 INFO L78 Accepts]: Start accepts. Automaton has 8830 states and 11910 transitions. Word has length 151 [2021-11-13 01:35:27,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:27,338 INFO L470 AbstractCegarLoop]: Abstraction has 8830 states and 11910 transitions. [2021-11-13 01:35:27,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 4 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 01:35:27,338 INFO L276 IsEmpty]: Start isEmpty. Operand 8830 states and 11910 transitions. [2021-11-13 01:35:27,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-13 01:35:27,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:27,340 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:35:27,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-11-13 01:35:27,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:27,565 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:27,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1345480138, now seen corresponding path program 1 times [2021-11-13 01:35:27,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:27,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52362173] [2021-11-13 01:35:27,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:27,568 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:27,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:27,569 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:27,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-13 01:35:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:29,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:35:29,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:30,147 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 01:35:30,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2021-11-13 01:35:30,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:30,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52362173] [2021-11-13 01:35:30,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52362173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:30,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:30,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:35:30,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355963563] [2021-11-13 01:35:30,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:30,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:35:30,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:30,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:35:30,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:35:30,575 INFO L87 Difference]: Start difference. First operand 8830 states and 11910 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-13 01:35:33,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:33,166 INFO L93 Difference]: Finished difference Result 20187 states and 27052 transitions. [2021-11-13 01:35:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:35:33,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 151 [2021-11-13 01:35:33,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:33,197 INFO L225 Difference]: With dead ends: 20187 [2021-11-13 01:35:33,197 INFO L226 Difference]: Without dead ends: 12927 [2021-11-13 01:35:33,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:35:33,212 INFO L933 BasicCegarLoop]: 2699 mSDtfsCounter, 3646 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1107.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 3917 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.63ms SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1362.47ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:33,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3646 Valid, 3917 Invalid, 834 Unknown, 0 Unchecked, 11.63ms Time], IncrementalHoareTripleChecker [829 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 1362.47ms Time] [2021-11-13 01:35:33,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12927 states. [2021-11-13 01:35:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12927 to 12905. [2021-11-13 01:35:34,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12905 states, 8927 states have (on average 1.239162092528285) internal successors, (11062), 9140 states have internal predecessors, (11062), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:35:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12905 states to 12905 states and 17235 transitions. [2021-11-13 01:35:34,499 INFO L78 Accepts]: Start accepts. Automaton has 12905 states and 17235 transitions. Word has length 151 [2021-11-13 01:35:34,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:34,499 INFO L470 AbstractCegarLoop]: Abstraction has 12905 states and 17235 transitions. [2021-11-13 01:35:34,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-11-13 01:35:34,500 INFO L276 IsEmpty]: Start isEmpty. Operand 12905 states and 17235 transitions. [2021-11-13 01:35:34,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-13 01:35:34,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:34,502 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:34,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:34,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:34,723 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:34,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash -2102730393, now seen corresponding path program 1 times [2021-11-13 01:35:34,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:34,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757425873] [2021-11-13 01:35:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:34,725 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:34,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:34,726 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:34,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-13 01:35:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:36,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:35:36,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:37,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:37,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:37,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757425873] [2021-11-13 01:35:37,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757425873] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:37,670 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:37,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:35:37,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459695092] [2021-11-13 01:35:37,671 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:37,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:35:37,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:37,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:35:37,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:35:37,672 INFO L87 Difference]: Start difference. First operand 12905 states and 17235 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2021-11-13 01:35:38,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:38,956 INFO L93 Difference]: Finished difference Result 12905 states and 17235 transitions. [2021-11-13 01:35:38,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:35:38,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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 135 [2021-11-13 01:35:38,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:38,987 INFO L225 Difference]: With dead ends: 12905 [2021-11-13 01:35:38,987 INFO L226 Difference]: Without dead ends: 12903 [2021-11-13 01:35:38,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:35:38,992 INFO L933 BasicCegarLoop]: 2265 mSDtfsCounter, 2150 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 4528 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.65ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:38,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2152 Valid, 4528 Invalid, 2 Unknown, 0 Unchecked, 7.69ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.65ms Time] [2021-11-13 01:35:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12903 states. [2021-11-13 01:35:40,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12903 to 12903. [2021-11-13 01:35:40,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12903 states, 8926 states have (on average 1.2390768541339905) internal successors, (11060), 9138 states have internal predecessors, (11060), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:35:40,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12903 states to 12903 states and 17233 transitions. [2021-11-13 01:35:40,199 INFO L78 Accepts]: Start accepts. Automaton has 12903 states and 17233 transitions. Word has length 135 [2021-11-13 01:35:40,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:40,199 INFO L470 AbstractCegarLoop]: Abstraction has 12903 states and 17233 transitions. [2021-11-13 01:35:40,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 5 states have internal predecessors, (139), 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) [2021-11-13 01:35:40,199 INFO L276 IsEmpty]: Start isEmpty. Operand 12903 states and 17233 transitions. [2021-11-13 01:35:40,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-13 01:35:40,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:40,201 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:40,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:40,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:40,401 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:40,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:40,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1997710427, now seen corresponding path program 1 times [2021-11-13 01:35:40,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:40,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463968178] [2021-11-13 01:35:40,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:40,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:40,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:40,404 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:40,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-13 01:35:42,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:42,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1477 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:35:42,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-13 01:35:42,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:43,165 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-13 01:35:43,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:43,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463968178] [2021-11-13 01:35:43,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1463968178] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:43,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:43,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:35:43,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933502401] [2021-11-13 01:35:43,166 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:43,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:35:43,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:35:43,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:35:43,168 INFO L87 Difference]: Start difference. First operand 12903 states and 17233 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 01:35:46,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:46,091 INFO L93 Difference]: Finished difference Result 22240 states and 29739 transitions. [2021-11-13 01:35:46,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:35:46,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 157 [2021-11-13 01:35:46,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:46,134 INFO L225 Difference]: With dead ends: 22240 [2021-11-13 01:35:46,134 INFO L226 Difference]: Without dead ends: 12893 [2021-11-13 01:35:46,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:35:46,166 INFO L933 BasicCegarLoop]: 2261 mSDtfsCounter, 3637 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1114.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 2261 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.28ms SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1522.21ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:46,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3637 Valid, 2261 Invalid, 827 Unknown, 0 Unchecked, 12.28ms Time], IncrementalHoareTripleChecker [826 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1522.21ms Time] [2021-11-13 01:35:46,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12893 states. [2021-11-13 01:35:47,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12893 to 12893. [2021-11-13 01:35:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12893 states, 8917 states have (on average 1.2384209936077155) internal successors, (11043), 9128 states have internal predecessors, (11043), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:35:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12893 states to 12893 states and 17216 transitions. [2021-11-13 01:35:47,580 INFO L78 Accepts]: Start accepts. Automaton has 12893 states and 17216 transitions. Word has length 157 [2021-11-13 01:35:47,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:47,580 INFO L470 AbstractCegarLoop]: Abstraction has 12893 states and 17216 transitions. [2021-11-13 01:35:47,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-13 01:35:47,581 INFO L276 IsEmpty]: Start isEmpty. Operand 12893 states and 17216 transitions. [2021-11-13 01:35:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-13 01:35:47,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:47,583 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:47,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:47,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:47,797 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:47,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:47,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1381146895, now seen corresponding path program 1 times [2021-11-13 01:35:47,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:47,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [100885958] [2021-11-13 01:35:47,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:47,800 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:47,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:47,801 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:47,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-13 01:35:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:49,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:35:49,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:50,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:51,027 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:51,027 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:51,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [100885958] [2021-11-13 01:35:51,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [100885958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:51,027 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:51,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:35:51,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355803009] [2021-11-13 01:35:51,027 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:51,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:35:51,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:51,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:35:51,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:35:51,029 INFO L87 Difference]: Start difference. First operand 12893 states and 17216 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-11-13 01:35:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:52,145 INFO L93 Difference]: Finished difference Result 12893 states and 17216 transitions. [2021-11-13 01:35:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:35:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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 141 [2021-11-13 01:35:52,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:52,181 INFO L225 Difference]: With dead ends: 12893 [2021-11-13 01:35:52,181 INFO L226 Difference]: Without dead ends: 12891 [2021-11-13 01:35:52,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:35:52,187 INFO L933 BasicCegarLoop]: 2258 mSDtfsCounter, 2137 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2139 SdHoareTripleChecker+Valid, 4514 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.88ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.60ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:52,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2139 Valid, 4514 Invalid, 2 Unknown, 0 Unchecked, 7.88ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.60ms Time] [2021-11-13 01:35:52,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12891 states. [2021-11-13 01:35:53,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12891 to 12891. [2021-11-13 01:35:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12891 states, 8916 states have (on average 1.2383355764917003) internal successors, (11041), 9126 states have internal predecessors, (11041), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:35:53,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12891 states to 12891 states and 17214 transitions. [2021-11-13 01:35:53,430 INFO L78 Accepts]: Start accepts. Automaton has 12891 states and 17214 transitions. Word has length 141 [2021-11-13 01:35:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:53,431 INFO L470 AbstractCegarLoop]: Abstraction has 12891 states and 17214 transitions. [2021-11-13 01:35:53,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 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) [2021-11-13 01:35:53,431 INFO L276 IsEmpty]: Start isEmpty. Operand 12891 states and 17214 transitions. [2021-11-13 01:35:53,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-11-13 01:35:53,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:53,433 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:53,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:53,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:53,649 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:53,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:53,650 INFO L85 PathProgramCache]: Analyzing trace with hash -578482679, now seen corresponding path program 1 times [2021-11-13 01:35:53,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:53,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1884787028] [2021-11-13 01:35:53,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:53,651 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:53,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:53,652 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:53,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-13 01:35:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:35:55,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 1324 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:35:55,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:35:56,186 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:56,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:35:56,647 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:35:56,647 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:35:56,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1884787028] [2021-11-13 01:35:56,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1884787028] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:35:56,647 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:35:56,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:35:56,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533347483] [2021-11-13 01:35:56,648 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:35:56,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:35:56,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:35:56,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:35:56,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:35:56,650 INFO L87 Difference]: Start difference. First operand 12891 states and 17214 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2021-11-13 01:35:58,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:35:58,166 INFO L93 Difference]: Finished difference Result 12891 states and 17214 transitions. [2021-11-13 01:35:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:35:58,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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 147 [2021-11-13 01:35:58,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:35:58,204 INFO L225 Difference]: With dead ends: 12891 [2021-11-13 01:35:58,204 INFO L226 Difference]: Without dead ends: 12889 [2021-11-13 01:35:58,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:35:58,211 INFO L933 BasicCegarLoop]: 2256 mSDtfsCounter, 2126 mSDsluCounter, 4508 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2128 SdHoareTripleChecker+Valid, 6764 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.35ms IncrementalHoareTripleChecker+Time [2021-11-13 01:35:58,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2128 Valid, 6764 Invalid, 2 Unknown, 0 Unchecked, 9.74ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.35ms Time] [2021-11-13 01:35:58,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12889 states. [2021-11-13 01:35:59,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12889 to 12889. [2021-11-13 01:35:59,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12889 states, 8915 states have (on average 1.2382501402131239) internal successors, (11039), 9124 states have internal predecessors, (11039), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:35:59,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12889 states to 12889 states and 17212 transitions. [2021-11-13 01:35:59,489 INFO L78 Accepts]: Start accepts. Automaton has 12889 states and 17212 transitions. Word has length 147 [2021-11-13 01:35:59,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:35:59,490 INFO L470 AbstractCegarLoop]: Abstraction has 12889 states and 17212 transitions. [2021-11-13 01:35:59,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 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) [2021-11-13 01:35:59,490 INFO L276 IsEmpty]: Start isEmpty. Operand 12889 states and 17212 transitions. [2021-11-13 01:35:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-13 01:35:59,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:35:59,492 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:35:59,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-13 01:35:59,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:35:59,705 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:35:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:35:59,706 INFO L85 PathProgramCache]: Analyzing trace with hash -190769678, now seen corresponding path program 1 times [2021-11-13 01:35:59,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:35:59,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549282973] [2021-11-13 01:35:59,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:35:59,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:35:59,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:35:59,708 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:35:59,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-13 01:36:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:01,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:01,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:02,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:02,788 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:02,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:02,788 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549282973] [2021-11-13 01:36:02,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549282973] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:02,788 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:02,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:02,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674151789] [2021-11-13 01:36:02,789 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:02,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:02,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:02,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:02,790 INFO L87 Difference]: Start difference. First operand 12889 states and 17212 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2021-11-13 01:36:03,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:03,973 INFO L93 Difference]: Finished difference Result 12889 states and 17212 transitions. [2021-11-13 01:36:03,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:03,973 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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 153 [2021-11-13 01:36:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:04,004 INFO L225 Difference]: With dead ends: 12889 [2021-11-13 01:36:04,005 INFO L226 Difference]: Without dead ends: 12887 [2021-11-13 01:36:04,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:04,012 INFO L933 BasicCegarLoop]: 2254 mSDtfsCounter, 2118 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2120 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.36ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.54ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:04,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2120 Valid, 6758 Invalid, 2 Unknown, 0 Unchecked, 9.36ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.54ms Time] [2021-11-13 01:36:04,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12887 states. [2021-11-13 01:36:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12887 to 12887. [2021-11-13 01:36:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12887 states, 8914 states have (on average 1.2381646847655374) internal successors, (11037), 9122 states have internal predecessors, (11037), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:05,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12887 states to 12887 states and 17210 transitions. [2021-11-13 01:36:05,282 INFO L78 Accepts]: Start accepts. Automaton has 12887 states and 17210 transitions. Word has length 153 [2021-11-13 01:36:05,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:05,282 INFO L470 AbstractCegarLoop]: Abstraction has 12887 states and 17210 transitions. [2021-11-13 01:36:05,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 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) [2021-11-13 01:36:05,282 INFO L276 IsEmpty]: Start isEmpty. Operand 12887 states and 17210 transitions. [2021-11-13 01:36:05,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-13 01:36:05,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:05,284 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:05,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:05,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:05,485 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:05,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:05,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1726635199, now seen corresponding path program 1 times [2021-11-13 01:36:05,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:05,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040463706] [2021-11-13 01:36:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:05,487 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:05,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:05,487 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:05,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-13 01:36:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:07,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 1342 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:07,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:08,095 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:08,998 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:08,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040463706] [2021-11-13 01:36:08,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040463706] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:08,998 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:08,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-13 01:36:08,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659320356] [2021-11-13 01:36:08,999 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:08,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 01:36:08,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:09,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 01:36:09,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:09,000 INFO L87 Difference]: Start difference. First operand 12887 states and 17210 transitions. Second operand has 6 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 01:36:11,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:11,367 INFO L93 Difference]: Finished difference Result 12887 states and 17210 transitions. [2021-11-13 01:36:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:11,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 159 [2021-11-13 01:36:11,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:11,422 INFO L225 Difference]: With dead ends: 12887 [2021-11-13 01:36:11,423 INFO L226 Difference]: Without dead ends: 12885 [2021-11-13 01:36:11,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:36:11,430 INFO L933 BasicCegarLoop]: 2252 mSDtfsCounter, 3505 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 872.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3507 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.77ms SdHoareTripleChecker+Time, 806 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1091.77ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:11,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3507 Valid, 4502 Invalid, 808 Unknown, 0 Unchecked, 13.77ms Time], IncrementalHoareTripleChecker [806 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1091.77ms Time] [2021-11-13 01:36:11,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12885 states. [2021-11-13 01:36:12,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12885 to 12885. [2021-11-13 01:36:12,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12885 states, 8913 states have (on average 1.2380792101424885) internal successors, (11035), 9120 states have internal predecessors, (11035), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12885 states to 12885 states and 17208 transitions. [2021-11-13 01:36:12,658 INFO L78 Accepts]: Start accepts. Automaton has 12885 states and 17208 transitions. Word has length 159 [2021-11-13 01:36:12,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:12,658 INFO L470 AbstractCegarLoop]: Abstraction has 12885 states and 17208 transitions. [2021-11-13 01:36:12,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.166666666666664) internal successors, (205), 6 states have internal predecessors, (205), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-13 01:36:12,659 INFO L276 IsEmpty]: Start isEmpty. Operand 12885 states and 17208 transitions. [2021-11-13 01:36:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-13 01:36:12,661 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:12,661 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:12,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:12,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:12,947 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:12,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:12,948 INFO L85 PathProgramCache]: Analyzing trace with hash -2032672784, now seen corresponding path program 1 times [2021-11-13 01:36:12,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:12,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1030672107] [2021-11-13 01:36:12,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:12,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:12,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:12,950 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:12,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-13 01:36:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:14,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 1351 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:14,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:15,622 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:15,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:16,124 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:16,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1030672107] [2021-11-13 01:36:16,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1030672107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:16,124 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:16,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801635728] [2021-11-13 01:36:16,124 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:16,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:16,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:16,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:16,125 INFO L87 Difference]: Start difference. First operand 12885 states and 17208 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 01:36:17,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:17,281 INFO L93 Difference]: Finished difference Result 12885 states and 17208 transitions. [2021-11-13 01:36:17,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:17,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 165 [2021-11-13 01:36:17,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:17,317 INFO L225 Difference]: With dead ends: 12885 [2021-11-13 01:36:17,317 INFO L226 Difference]: Without dead ends: 12883 [2021-11-13 01:36:17,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:17,325 INFO L933 BasicCegarLoop]: 2250 mSDtfsCounter, 2105 mSDsluCounter, 2248 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 4498 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.43ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.40ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:17,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2107 Valid, 4498 Invalid, 2 Unknown, 0 Unchecked, 7.43ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.40ms Time] [2021-11-13 01:36:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12883 states. [2021-11-13 01:36:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12883 to 12883. [2021-11-13 01:36:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12883 states, 8912 states have (on average 1.2379937163375225) internal successors, (11033), 9118 states have internal predecessors, (11033), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:18,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12883 states to 12883 states and 17206 transitions. [2021-11-13 01:36:18,652 INFO L78 Accepts]: Start accepts. Automaton has 12883 states and 17206 transitions. Word has length 165 [2021-11-13 01:36:18,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:18,652 INFO L470 AbstractCegarLoop]: Abstraction has 12883 states and 17206 transitions. [2021-11-13 01:36:18,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-13 01:36:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 12883 states and 17206 transitions. [2021-11-13 01:36:18,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-13 01:36:18,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:18,654 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:18,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:18,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:18,857 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:18,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:18,858 INFO L85 PathProgramCache]: Analyzing trace with hash 497495166, now seen corresponding path program 1 times [2021-11-13 01:36:18,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:18,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192625406] [2021-11-13 01:36:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:18,859 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:18,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:18,860 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:18,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-13 01:36:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:20,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:20,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:21,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:22,086 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:22,086 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:22,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192625406] [2021-11-13 01:36:22,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192625406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:22,086 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:22,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:22,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024903561] [2021-11-13 01:36:22,087 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:22,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:22,087 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:22,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:22,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:22,088 INFO L87 Difference]: Start difference. First operand 12883 states and 17206 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 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) [2021-11-13 01:36:23,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:23,358 INFO L93 Difference]: Finished difference Result 12883 states and 17206 transitions. [2021-11-13 01:36:23,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:23,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 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 171 [2021-11-13 01:36:23,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:23,391 INFO L225 Difference]: With dead ends: 12883 [2021-11-13 01:36:23,391 INFO L226 Difference]: Without dead ends: 12881 [2021-11-13 01:36:23,397 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:23,398 INFO L933 BasicCegarLoop]: 2248 mSDtfsCounter, 2094 mSDsluCounter, 4492 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 6740 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.81ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:23,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 6740 Invalid, 2 Unknown, 0 Unchecked, 10.05ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.81ms Time] [2021-11-13 01:36:23,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12881 states. [2021-11-13 01:36:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12881 to 12881. [2021-11-13 01:36:24,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12881 states, 8911 states have (on average 1.2379082033441813) internal successors, (11031), 9116 states have internal predecessors, (11031), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12881 states to 12881 states and 17204 transitions. [2021-11-13 01:36:24,829 INFO L78 Accepts]: Start accepts. Automaton has 12881 states and 17204 transitions. Word has length 171 [2021-11-13 01:36:24,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:24,829 INFO L470 AbstractCegarLoop]: Abstraction has 12881 states and 17204 transitions. [2021-11-13 01:36:24,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 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) [2021-11-13 01:36:24,829 INFO L276 IsEmpty]: Start isEmpty. Operand 12881 states and 17204 transitions. [2021-11-13 01:36:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-13 01:36:24,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:24,831 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:24,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:25,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:25,032 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:25,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:25,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1894361284, now seen corresponding path program 1 times [2021-11-13 01:36:25,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:25,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279750236] [2021-11-13 01:36:25,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:25,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:25,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:25,035 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:25,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-13 01:36:26,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:26,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1369 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:26,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:27,844 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:27,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:28,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:28,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279750236] [2021-11-13 01:36:28,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279750236] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:28,419 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:28,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:28,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432192414] [2021-11-13 01:36:28,419 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:28,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:28,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:28,420 INFO L87 Difference]: Start difference. First operand 12881 states and 17204 transitions. Second operand has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-11-13 01:36:29,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:29,737 INFO L93 Difference]: Finished difference Result 12881 states and 17204 transitions. [2021-11-13 01:36:29,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:29,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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 177 [2021-11-13 01:36:29,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:29,768 INFO L225 Difference]: With dead ends: 12881 [2021-11-13 01:36:29,768 INFO L226 Difference]: Without dead ends: 12879 [2021-11-13 01:36:29,773 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:29,773 INFO L933 BasicCegarLoop]: 2246 mSDtfsCounter, 2089 mSDsluCounter, 2244 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.81ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:29,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 4490 Invalid, 2 Unknown, 0 Unchecked, 8.00ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.81ms Time] [2021-11-13 01:36:29,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2021-11-13 01:36:31,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 12879. [2021-11-13 01:36:31,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12879 states, 8910 states have (on average 1.2378226711560045) internal successors, (11029), 9114 states have internal predecessors, (11029), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:31,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12879 states to 12879 states and 17202 transitions. [2021-11-13 01:36:31,228 INFO L78 Accepts]: Start accepts. Automaton has 12879 states and 17202 transitions. Word has length 177 [2021-11-13 01:36:31,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:31,229 INFO L470 AbstractCegarLoop]: Abstraction has 12879 states and 17202 transitions. [2021-11-13 01:36:31,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.0) internal successors, (195), 5 states have internal predecessors, (195), 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) [2021-11-13 01:36:31,229 INFO L276 IsEmpty]: Start isEmpty. Operand 12879 states and 17202 transitions. [2021-11-13 01:36:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-13 01:36:31,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:31,231 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:31,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:31,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:31,432 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:31,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:31,432 INFO L85 PathProgramCache]: Analyzing trace with hash 502070306, now seen corresponding path program 1 times [2021-11-13 01:36:31,433 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:31,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61360752] [2021-11-13 01:36:31,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:31,434 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:31,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:31,435 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:31,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-13 01:36:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:33,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1378 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:33,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:34,302 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:34,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:34,876 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:34,876 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:34,876 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61360752] [2021-11-13 01:36:34,876 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61360752] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:34,876 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:34,877 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:34,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011374199] [2021-11-13 01:36:34,877 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:34,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:34,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:34,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:34,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:34,878 INFO L87 Difference]: Start difference. First operand 12879 states and 17202 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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) [2021-11-13 01:36:36,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:36,271 INFO L93 Difference]: Finished difference Result 12879 states and 17202 transitions. [2021-11-13 01:36:36,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:36,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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 183 [2021-11-13 01:36:36,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:36,307 INFO L225 Difference]: With dead ends: 12879 [2021-11-13 01:36:36,307 INFO L226 Difference]: Without dead ends: 12877 [2021-11-13 01:36:36,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:36,312 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 2078 mSDsluCounter, 4484 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 6728 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.53ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.07ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:36,312 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2080 Valid, 6728 Invalid, 2 Unknown, 0 Unchecked, 10.53ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 5.07ms Time] [2021-11-13 01:36:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12877 states. [2021-11-13 01:36:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12877 to 12877. [2021-11-13 01:36:37,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12877 states, 8909 states have (on average 1.2377371197665283) internal successors, (11027), 9112 states have internal predecessors, (11027), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12877 states to 12877 states and 17200 transitions. [2021-11-13 01:36:37,870 INFO L78 Accepts]: Start accepts. Automaton has 12877 states and 17200 transitions. Word has length 183 [2021-11-13 01:36:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:37,870 INFO L470 AbstractCegarLoop]: Abstraction has 12877 states and 17200 transitions. [2021-11-13 01:36:37,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 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) [2021-11-13 01:36:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 12877 states and 17200 transitions. [2021-11-13 01:36:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-13 01:36:37,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:37,874 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 01:36:37,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:38,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:38,075 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:38,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:38,075 INFO L85 PathProgramCache]: Analyzing trace with hash 426259915, now seen corresponding path program 1 times [2021-11-13 01:36:38,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:38,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007829327] [2021-11-13 01:36:38,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:38,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:38,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:38,078 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:38,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-13 01:36:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:40,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:36:40,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:40,756 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:36:40,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:41,280 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2021-11-13 01:36:41,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:41,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007829327] [2021-11-13 01:36:41,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007829327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:41,280 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:41,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-13 01:36:41,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933362813] [2021-11-13 01:36:41,281 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:41,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 01:36:41,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:41,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 01:36:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-13 01:36:41,282 INFO L87 Difference]: Start difference. First operand 12877 states and 17200 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-13 01:36:43,445 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:36:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:44,959 INFO L93 Difference]: Finished difference Result 12881 states and 17202 transitions. [2021-11-13 01:36:44,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:36:44,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 224 [2021-11-13 01:36:44,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:45,006 INFO L225 Difference]: With dead ends: 12881 [2021-11-13 01:36:45,006 INFO L226 Difference]: Without dead ends: 12879 [2021-11-13 01:36:45,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:36:45,016 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 1105 mSDsluCounter, 11217 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2181.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 13598 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2182.99ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:45,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1106 Valid, 13598 Invalid, 9 Unknown, 0 Unchecked, 16.75ms Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2182.99ms Time] [2021-11-13 01:36:45,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12879 states. [2021-11-13 01:36:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12879 to 12875. [2021-11-13 01:36:46,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12875 states, 8908 states have (on average 1.2366412213740459) internal successors, (11016), 9110 states have internal predecessors, (11016), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:46,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12875 states to 12875 states and 17189 transitions. [2021-11-13 01:36:46,532 INFO L78 Accepts]: Start accepts. Automaton has 12875 states and 17189 transitions. Word has length 224 [2021-11-13 01:36:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:46,532 INFO L470 AbstractCegarLoop]: Abstraction has 12875 states and 17189 transitions. [2021-11-13 01:36:46,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (44), 4 states have call predecessors, (44), 2 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-13 01:36:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 12875 states and 17189 transitions. [2021-11-13 01:36:46,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-13 01:36:46,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:46,536 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:46,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:46,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:46,757 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:46,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:46,758 INFO L85 PathProgramCache]: Analyzing trace with hash 621454319, now seen corresponding path program 1 times [2021-11-13 01:36:46,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:46,759 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327231513] [2021-11-13 01:36:46,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:46,759 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:46,760 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:46,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2021-11-13 01:36:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:48,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 1387 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:48,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:49,724 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:49,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:50,312 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:50,312 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:50,312 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327231513] [2021-11-13 01:36:50,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327231513] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:50,312 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:50,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:50,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846685741] [2021-11-13 01:36:50,313 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:50,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:50,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:50,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:50,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:50,314 INFO L87 Difference]: Start difference. First operand 12875 states and 17189 transitions. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2021-11-13 01:36:51,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:51,710 INFO L93 Difference]: Finished difference Result 12875 states and 17189 transitions. [2021-11-13 01:36:51,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:51,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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 189 [2021-11-13 01:36:51,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:51,742 INFO L225 Difference]: With dead ends: 12875 [2021-11-13 01:36:51,742 INFO L226 Difference]: Without dead ends: 12873 [2021-11-13 01:36:51,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:51,748 INFO L933 BasicCegarLoop]: 2240 mSDtfsCounter, 2068 mSDsluCounter, 4476 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 6716 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.75ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:51,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2070 Valid, 6716 Invalid, 2 Unknown, 0 Unchecked, 9.82ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 4.75ms Time] [2021-11-13 01:36:51,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12873 states. [2021-11-13 01:36:53,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12873 to 12873. [2021-11-13 01:36:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12873 states, 8907 states have (on average 1.2365555181318064) internal successors, (11014), 9108 states have internal predecessors, (11014), 3078 states have call successors, (3078), 882 states have call predecessors, (3078), 884 states have return successors, (3095), 3009 states have call predecessors, (3095), 3076 states have call successors, (3095) [2021-11-13 01:36:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12873 states to 12873 states and 17187 transitions. [2021-11-13 01:36:53,265 INFO L78 Accepts]: Start accepts. Automaton has 12873 states and 17187 transitions. Word has length 189 [2021-11-13 01:36:53,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:53,265 INFO L470 AbstractCegarLoop]: Abstraction has 12873 states and 17187 transitions. [2021-11-13 01:36:53,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 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) [2021-11-13 01:36:53,266 INFO L276 IsEmpty]: Start isEmpty. Operand 12873 states and 17187 transitions. [2021-11-13 01:36:53,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-13 01:36:53,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:53,268 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:36:53,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2021-11-13 01:36:53,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:36:53,493 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:36:53,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:36:53,494 INFO L85 PathProgramCache]: Analyzing trace with hash 47365333, now seen corresponding path program 1 times [2021-11-13 01:36:53,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:36:53,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107457586] [2021-11-13 01:36:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:36:53,495 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:36:53,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:36:53,496 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:36:53,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-13 01:36:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:36:55,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 01:36:55,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:36:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:56,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:36:56,956 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-13 01:36:56,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:36:56,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107457586] [2021-11-13 01:36:56,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107457586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:36:56,957 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:36:56,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-13 01:36:56,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030191084] [2021-11-13 01:36:56,957 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:36:56,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:36:56,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:36:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:36:56,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 01:36:56,959 INFO L87 Difference]: Start difference. First operand 12873 states and 17187 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2021-11-13 01:36:58,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:36:58,313 INFO L93 Difference]: Finished difference Result 12873 states and 17187 transitions. [2021-11-13 01:36:58,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:36:58,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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 195 [2021-11-13 01:36:58,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:36:58,367 INFO L225 Difference]: With dead ends: 12873 [2021-11-13 01:36:58,367 INFO L226 Difference]: Without dead ends: 11636 [2021-11-13 01:36:58,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 389 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 01:36:58,378 INFO L933 BasicCegarLoop]: 2239 mSDtfsCounter, 2059 mSDsluCounter, 4478 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 6717 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.15ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.40ms IncrementalHoareTripleChecker+Time [2021-11-13 01:36:58,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2059 Valid, 6717 Invalid, 1 Unknown, 0 Unchecked, 10.15ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 2.40ms Time] [2021-11-13 01:36:58,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11636 states. [2021-11-13 01:36:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11636 to 11636. [2021-11-13 01:36:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11636 states, 8029 states have (on average 1.2305392950554241) internal successors, (9880), 8202 states have internal predecessors, (9880), 2782 states have call successors, (2782), 827 states have call predecessors, (2782), 822 states have return successors, (2787), 2728 states have call predecessors, (2787), 2771 states have call successors, (2787) [2021-11-13 01:36:59,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11636 states to 11636 states and 15449 transitions. [2021-11-13 01:36:59,993 INFO L78 Accepts]: Start accepts. Automaton has 11636 states and 15449 transitions. Word has length 195 [2021-11-13 01:36:59,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:36:59,993 INFO L470 AbstractCegarLoop]: Abstraction has 11636 states and 15449 transitions. [2021-11-13 01:36:59,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 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) [2021-11-13 01:36:59,993 INFO L276 IsEmpty]: Start isEmpty. Operand 11636 states and 15449 transitions. [2021-11-13 01:36:59,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-11-13 01:36:59,996 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:36:59,997 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:37:00,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:00,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:00,197 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:00,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:00,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1216514025, now seen corresponding path program 1 times [2021-11-13 01:37:00,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:00,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011394319] [2021-11-13 01:37:00,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:00,200 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:00,201 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:00,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-13 01:37:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:02,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-13 01:37:02,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-13 01:37:03,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 27 proven. 3 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-11-13 01:37:05,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:05,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1011394319] [2021-11-13 01:37:05,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1011394319] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:37:05,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:37:05,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 25 [2021-11-13 01:37:05,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335524044] [2021-11-13 01:37:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:05,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 01:37:05,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 01:37:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-11-13 01:37:05,115 INFO L87 Difference]: Start difference. First operand 11636 states and 15449 transitions. Second operand has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-13 01:37:09,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:09,721 INFO L93 Difference]: Finished difference Result 21121 states and 28203 transitions. [2021-11-13 01:37:09,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-13 01:37:09,722 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) Word has length 277 [2021-11-13 01:37:09,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:09,770 INFO L225 Difference]: With dead ends: 21121 [2021-11-13 01:37:09,770 INFO L226 Difference]: Without dead ends: 12719 [2021-11-13 01:37:09,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=194, Invalid=1066, Unknown=0, NotChecked=0, Total=1260 [2021-11-13 01:37:09,806 INFO L933 BasicCegarLoop]: 2270 mSDtfsCounter, 1526 mSDsluCounter, 25184 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1806.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 27454 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.00ms SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1985.19ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:09,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 27454 Invalid, 1195 Unknown, 0 Unchecked, 41.00ms Time], IncrementalHoareTripleChecker [603 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 1985.19ms Time] [2021-11-13 01:37:09,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12719 states. [2021-11-13 01:37:11,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12719 to 11681. [2021-11-13 01:37:11,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11681 states, 8062 states have (on average 1.2295956338377574) internal successors, (9913), 8235 states have internal predecessors, (9913), 2794 states have call successors, (2794), 827 states have call predecessors, (2794), 822 states have return successors, (2799), 2740 states have call predecessors, (2799), 2783 states have call successors, (2799) [2021-11-13 01:37:11,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11681 states to 11681 states and 15506 transitions. [2021-11-13 01:37:11,383 INFO L78 Accepts]: Start accepts. Automaton has 11681 states and 15506 transitions. Word has length 277 [2021-11-13 01:37:11,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:11,384 INFO L470 AbstractCegarLoop]: Abstraction has 11681 states and 15506 transitions. [2021-11-13 01:37:11,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.538461538461538) internal successors, (137), 13 states have internal predecessors, (137), 6 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (34), 6 states have call predecessors, (34), 6 states have call successors, (34) [2021-11-13 01:37:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand 11681 states and 15506 transitions. [2021-11-13 01:37:11,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2021-11-13 01:37:11,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:11,390 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-13 01:37:11,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:11,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:11,605 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:11,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:11,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1708557327, now seen corresponding path program 1 times [2021-11-13 01:37:11,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:11,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446268533] [2021-11-13 01:37:11,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:11,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:11,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:11,610 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:11,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-13 01:37:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:13,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 01:37:13,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2021-11-13 01:37:14,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-11-13 01:37:15,619 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:15,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446268533] [2021-11-13 01:37:15,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [446268533] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:15,619 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:15,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-13 01:37:15,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676251890] [2021-11-13 01:37:15,620 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:15,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:37:15,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:15,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:37:15,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:37:15,621 INFO L87 Difference]: Start difference. First operand 11681 states and 15506 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:37:18,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:18,405 INFO L93 Difference]: Finished difference Result 23118 states and 30766 transitions. [2021-11-13 01:37:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 01:37:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 294 [2021-11-13 01:37:18,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:18,452 INFO L225 Difference]: With dead ends: 23118 [2021-11-13 01:37:18,452 INFO L226 Difference]: Without dead ends: 12274 [2021-11-13 01:37:18,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 582 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:37:18,487 INFO L933 BasicCegarLoop]: 2003 mSDtfsCounter, 479 mSDsluCounter, 7720 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1021.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 9723 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.77ms SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1107.27ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:18,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [515 Valid, 9723 Invalid, 244 Unknown, 0 Unchecked, 12.77ms Time], IncrementalHoareTripleChecker [177 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 1107.27ms Time] [2021-11-13 01:37:18,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12274 states. [2021-11-13 01:37:20,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12274 to 11690. [2021-11-13 01:37:20,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11690 states, 8071 states have (on average 1.2293396109527939) internal successors, (9922), 8244 states have internal predecessors, (9922), 2794 states have call successors, (2794), 827 states have call predecessors, (2794), 822 states have return successors, (2799), 2740 states have call predecessors, (2799), 2783 states have call successors, (2799) [2021-11-13 01:37:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11690 states to 11690 states and 15515 transitions. [2021-11-13 01:37:20,315 INFO L78 Accepts]: Start accepts. Automaton has 11690 states and 15515 transitions. Word has length 294 [2021-11-13 01:37:20,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:20,315 INFO L470 AbstractCegarLoop]: Abstraction has 11690 states and 15515 transitions. [2021-11-13 01:37:20,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 8 states have internal predecessors, (175), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:37:20,315 INFO L276 IsEmpty]: Start isEmpty. Operand 11690 states and 15515 transitions. [2021-11-13 01:37:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-13 01:37:20,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:20,319 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 01:37:20,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:20,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:20,520 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:20,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1403671883, now seen corresponding path program 1 times [2021-11-13 01:37:20,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:20,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1309056148] [2021-11-13 01:37:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:20,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:20,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:20,523 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:20,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2021-11-13 01:37:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:22,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 01:37:22,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-13 01:37:24,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:26,183 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-11-13 01:37:26,184 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:26,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1309056148] [2021-11-13 01:37:26,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1309056148] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:37:26,184 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:37:26,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 27 [2021-11-13 01:37:26,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019416033] [2021-11-13 01:37:26,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:26,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 01:37:26,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:26,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 01:37:26,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-13 01:37:26,186 INFO L87 Difference]: Start difference. First operand 11690 states and 15515 transitions. Second operand has 15 states, 14 states have (on average 10.5) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-13 01:37:31,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:31,167 INFO L93 Difference]: Finished difference Result 21263 states and 28379 transitions. [2021-11-13 01:37:31,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 01:37:31,167 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.5) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 315 [2021-11-13 01:37:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:31,216 INFO L225 Difference]: With dead ends: 21263 [2021-11-13 01:37:31,216 INFO L226 Difference]: Without dead ends: 12825 [2021-11-13 01:37:31,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=244, Invalid=1316, Unknown=0, NotChecked=0, Total=1560 [2021-11-13 01:37:31,242 INFO L933 BasicCegarLoop]: 2298 mSDtfsCounter, 1606 mSDsluCounter, 27565 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1939.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 29863 SdHoareTripleChecker+Invalid, 1330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.09ms SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2134.49ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:31,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1606 Valid, 29863 Invalid, 1330 Unknown, 0 Unchecked, 40.09ms Time], IncrementalHoareTripleChecker [653 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 2134.49ms Time] [2021-11-13 01:37:31,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12825 states. [2021-11-13 01:37:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12825 to 11708. [2021-11-13 01:37:32,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11708 states, 8083 states have (on average 1.2289991339849067) internal successors, (9934), 8253 states have internal predecessors, (9934), 2800 states have call successors, (2800), 827 states have call predecessors, (2800), 822 states have return successors, (2805), 2746 states have call predecessors, (2805), 2789 states have call successors, (2805) [2021-11-13 01:37:32,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11708 states to 11708 states and 15539 transitions. [2021-11-13 01:37:32,960 INFO L78 Accepts]: Start accepts. Automaton has 11708 states and 15539 transitions. Word has length 315 [2021-11-13 01:37:32,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:32,961 INFO L470 AbstractCegarLoop]: Abstraction has 11708 states and 15539 transitions. [2021-11-13 01:37:32,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.5) internal successors, (147), 14 states have internal predecessors, (147), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-13 01:37:32,961 INFO L276 IsEmpty]: Start isEmpty. Operand 11708 states and 15539 transitions. [2021-11-13 01:37:32,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-13 01:37:32,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:32,965 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-13 01:37:33,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (43)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:33,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:33,166 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:33,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:33,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1418739184, now seen corresponding path program 1 times [2021-11-13 01:37:33,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:33,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839657674] [2021-11-13 01:37:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:33,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:33,169 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:33,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-13 01:37:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:35,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 1887 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-13 01:37:35,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:36,767 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-11-13 01:37:36,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 33 proven. 3 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked. [2021-11-13 01:37:37,920 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:37,920 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839657674] [2021-11-13 01:37:37,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839657674] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:37:37,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:37:37,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 18 [2021-11-13 01:37:37,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462416511] [2021-11-13 01:37:37,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:37,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-13 01:37:37,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:37,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-13 01:37:37,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-11-13 01:37:37,923 INFO L87 Difference]: Start difference. First operand 11708 states and 15539 transitions. Second operand has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 14 states have internal predecessors, (149), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-13 01:37:44,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:44,990 INFO L93 Difference]: Finished difference Result 22928 states and 30779 transitions. [2021-11-13 01:37:44,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-13 01:37:44,991 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 14 states have internal predecessors, (149), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) Word has length 317 [2021-11-13 01:37:44,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:45,041 INFO L225 Difference]: With dead ends: 22928 [2021-11-13 01:37:45,041 INFO L226 Difference]: Without dead ends: 14477 [2021-11-13 01:37:45,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=325, Invalid=1481, Unknown=0, NotChecked=0, Total=1806 [2021-11-13 01:37:45,067 INFO L933 BasicCegarLoop]: 2590 mSDtfsCounter, 1649 mSDsluCounter, 30531 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 924 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2555.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1748 SdHoareTripleChecker+Valid, 33121 SdHoareTripleChecker+Invalid, 1789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.25ms SdHoareTripleChecker+Time, 924 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2814.74ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:45,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1748 Valid, 33121 Invalid, 1789 Unknown, 0 Unchecked, 49.25ms Time], IncrementalHoareTripleChecker [924 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 2814.74ms Time] [2021-11-13 01:37:45,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14477 states. [2021-11-13 01:37:46,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14477 to 11725. [2021-11-13 01:37:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11725 states, 8102 states have (on average 1.2294495186373735) internal successors, (9961), 8275 states have internal predecessors, (9961), 2798 states have call successors, (2798), 827 states have call predecessors, (2798), 822 states have return successors, (2803), 2744 states have call predecessors, (2803), 2787 states have call successors, (2803) [2021-11-13 01:37:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11725 states to 11725 states and 15562 transitions. [2021-11-13 01:37:46,720 INFO L78 Accepts]: Start accepts. Automaton has 11725 states and 15562 transitions. Word has length 317 [2021-11-13 01:37:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:46,721 INFO L470 AbstractCegarLoop]: Abstraction has 11725 states and 15562 transitions. [2021-11-13 01:37:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.642857142857142) internal successors, (149), 14 states have internal predecessors, (149), 7 states have call successors, (44), 2 states have call predecessors, (44), 4 states have return successors, (38), 7 states have call predecessors, (38), 7 states have call successors, (38) [2021-11-13 01:37:46,721 INFO L276 IsEmpty]: Start isEmpty. Operand 11725 states and 15562 transitions. [2021-11-13 01:37:46,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-13 01:37:46,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:46,724 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-13 01:37:46,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:46,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:46,925 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:46,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:46,925 INFO L85 PathProgramCache]: Analyzing trace with hash -932935093, now seen corresponding path program 1 times [2021-11-13 01:37:46,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:46,927 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851921935] [2021-11-13 01:37:46,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:46,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:46,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:46,929 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:46,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-13 01:37:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:49,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:37:49,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:37:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-11-13 01:37:50,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:37:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-13 01:37:51,089 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:37:51,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851921935] [2021-11-13 01:37:51,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851921935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:37:51,089 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:37:51,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-13 01:37:51,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427265392] [2021-11-13 01:37:51,090 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:37:51,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 01:37:51,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:37:51,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 01:37:51,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:37:51,091 INFO L87 Difference]: Start difference. First operand 11725 states and 15562 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-13 01:37:52,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:37:52,558 INFO L93 Difference]: Finished difference Result 22620 states and 30036 transitions. [2021-11-13 01:37:52,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 01:37:52,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 309 [2021-11-13 01:37:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:37:52,596 INFO L225 Difference]: With dead ends: 22620 [2021-11-13 01:37:52,596 INFO L226 Difference]: Without dead ends: 11731 [2021-11-13 01:37:52,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 01:37:52,624 INFO L933 BasicCegarLoop]: 1832 mSDtfsCounter, 1 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.08ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.25ms IncrementalHoareTripleChecker+Time [2021-11-13 01:37:52,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 3657 Invalid, 8 Unknown, 0 Unchecked, 5.08ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 51.25ms Time] [2021-11-13 01:37:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11731 states. [2021-11-13 01:37:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11731 to 11728. [2021-11-13 01:37:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11728 states, 8105 states have (on average 1.2293645897594079) internal successors, (9964), 8278 states have internal predecessors, (9964), 2798 states have call successors, (2798), 827 states have call predecessors, (2798), 822 states have return successors, (2803), 2744 states have call predecessors, (2803), 2787 states have call successors, (2803) [2021-11-13 01:37:54,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11728 states to 11728 states and 15565 transitions. [2021-11-13 01:37:54,189 INFO L78 Accepts]: Start accepts. Automaton has 11728 states and 15565 transitions. Word has length 309 [2021-11-13 01:37:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:37:54,189 INFO L470 AbstractCegarLoop]: Abstraction has 11728 states and 15565 transitions. [2021-11-13 01:37:54,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-13 01:37:54,190 INFO L276 IsEmpty]: Start isEmpty. Operand 11728 states and 15565 transitions. [2021-11-13 01:37:54,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-13 01:37:54,193 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:37:54,194 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-13 01:37:54,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2021-11-13 01:37:54,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:37:54,394 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:37:54,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:37:54,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1221754483, now seen corresponding path program 1 times [2021-11-13 01:37:54,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:37:54,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816290880] [2021-11-13 01:37:54,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:37:54,397 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:37:54,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:37:54,397 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:37:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2021-11-13 01:37:57,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:37:57,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-13 01:37:57,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:01,088 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 130 proven. 30 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2021-11-13 01:38:01,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 22 proven. 50 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-13 01:38:10,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:10,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816290880] [2021-11-13 01:38:10,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816290880] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:38:10,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1656477387] [2021-11-13 01:38:10,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:10,024 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:38:10,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:38:10,030 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:38:10,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2021-11-13 01:38:13,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:13,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:38:13,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2021-11-13 01:38:14,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-11-13 01:38:15,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1656477387] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:38:15,407 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-13 01:38:15,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [22, 21] total 40 [2021-11-13 01:38:15,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094490863] [2021-11-13 01:38:15,408 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:15,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:38:15,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:15,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:38:15,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=1452, Unknown=0, NotChecked=0, Total=1560 [2021-11-13 01:38:15,409 INFO L87 Difference]: Start difference. First operand 11728 states and 15565 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-13 01:38:17,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:17,960 INFO L93 Difference]: Finished difference Result 24509 states and 32784 transitions. [2021-11-13 01:38:17,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:38:17,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 309 [2021-11-13 01:38:17,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:18,005 INFO L225 Difference]: With dead ends: 24509 [2021-11-13 01:38:18,005 INFO L226 Difference]: Without dead ends: 13712 [2021-11-13 01:38:18,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1232 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=108, Invalid=1452, Unknown=0, NotChecked=0, Total=1560 [2021-11-13 01:38:18,039 INFO L933 BasicCegarLoop]: 2168 mSDtfsCounter, 290 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 503.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 6059 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.38ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 575.36ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:18,039 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 6059 Invalid, 142 Unknown, 0 Unchecked, 9.38ms Time], IncrementalHoareTripleChecker [6 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 575.36ms Time] [2021-11-13 01:38:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13712 states. [2021-11-13 01:38:19,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13712 to 11824. [2021-11-13 01:38:19,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11824 states, 8150 states have (on average 1.22920245398773) internal successors, (10018), 8323 states have internal predecessors, (10018), 2849 states have call successors, (2849), 827 states have call predecessors, (2849), 822 states have return successors, (2854), 2795 states have call predecessors, (2854), 2838 states have call successors, (2854) [2021-11-13 01:38:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11824 states to 11824 states and 15721 transitions. [2021-11-13 01:38:19,743 INFO L78 Accepts]: Start accepts. Automaton has 11824 states and 15721 transitions. Word has length 309 [2021-11-13 01:38:19,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:19,744 INFO L470 AbstractCegarLoop]: Abstraction has 11824 states and 15721 transitions. [2021-11-13 01:38:19,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-13 01:38:19,744 INFO L276 IsEmpty]: Start isEmpty. Operand 11824 states and 15721 transitions. [2021-11-13 01:38:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-13 01:38:19,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:19,749 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:19,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:19,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:20,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:20,150 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:38:20,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:20,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1722214344, now seen corresponding path program 1 times [2021-11-13 01:38:20,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:20,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767078168] [2021-11-13 01:38:20,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:20,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:20,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:20,153 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:20,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-13 01:38:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:22,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2002 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 01:38:22,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:23,708 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2021-11-13 01:38:23,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:25,195 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2021-11-13 01:38:25,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:25,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767078168] [2021-11-13 01:38:25,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [767078168] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:38:25,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:38:25,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 12 [2021-11-13 01:38:25,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661134385] [2021-11-13 01:38:25,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:25,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:38:25,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:38:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-13 01:38:25,197 INFO L87 Difference]: Start difference. First operand 11824 states and 15721 transitions. Second operand has 8 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-13 01:38:27,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:38:27,430 INFO L93 Difference]: Finished difference Result 22594 states and 30016 transitions. [2021-11-13 01:38:27,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 01:38:27,431 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) Word has length 374 [2021-11-13 01:38:27,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:38:27,467 INFO L225 Difference]: With dead ends: 22594 [2021-11-13 01:38:27,467 INFO L226 Difference]: Without dead ends: 11954 [2021-11-13 01:38:27,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 735 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-13 01:38:27,497 INFO L933 BasicCegarLoop]: 1823 mSDtfsCounter, 21 mSDsluCounter, 10912 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 288.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 12735 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.71ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 312.27ms IncrementalHoareTripleChecker+Time [2021-11-13 01:38:27,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 12735 Invalid, 105 Unknown, 0 Unchecked, 13.71ms Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 312.27ms Time] [2021-11-13 01:38:27,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11954 states. [2021-11-13 01:38:29,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11954 to 11863. [2021-11-13 01:38:29,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11863 states, 8176 states have (on average 1.2284735812133072) internal successors, (10044), 8336 states have internal predecessors, (10044), 2862 states have call successors, (2862), 827 states have call predecessors, (2862), 822 states have return successors, (2867), 2808 states have call predecessors, (2867), 2851 states have call successors, (2867) [2021-11-13 01:38:29,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11863 states to 11863 states and 15773 transitions. [2021-11-13 01:38:29,138 INFO L78 Accepts]: Start accepts. Automaton has 11863 states and 15773 transitions. Word has length 374 [2021-11-13 01:38:29,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:38:29,138 INFO L470 AbstractCegarLoop]: Abstraction has 11863 states and 15773 transitions. [2021-11-13 01:38:29,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 25.714285714285715) internal successors, (180), 6 states have internal predecessors, (180), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (56), 4 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-13 01:38:29,138 INFO L276 IsEmpty]: Start isEmpty. Operand 11863 states and 15773 transitions. [2021-11-13 01:38:29,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-11-13 01:38:29,143 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:38:29,143 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:38:29,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-13 01:38:29,344 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:38:29,344 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:38:29,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:38:29,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1291492699, now seen corresponding path program 1 times [2021-11-13 01:38:29,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:38:29,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208357409] [2021-11-13 01:38:29,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:38:29,347 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:38:29,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:38:29,348 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:38:29,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2021-11-13 01:38:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:38:32,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 01:38:32,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:38:33,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 01:38:34,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-13 01:38:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 110 proven. 48 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2021-11-13 01:38:34,544 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:38:35,913 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-13 01:38:35,913 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:38:35,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208357409] [2021-11-13 01:38:35,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208357409] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 01:38:35,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 01:38:35,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2021-11-13 01:38:35,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886497619] [2021-11-13 01:38:35,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 01:38:35,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 01:38:35,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:38:35,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 01:38:35,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 01:38:35,915 INFO L87 Difference]: Start difference. First operand 11863 states and 15773 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 4 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 01:38:38,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:40,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:42,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:45,391 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:49,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:51,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:53,743 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:56,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:38:59,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:00,331 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:02,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:07,486 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:09,520 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:13,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:15,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:17,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:19,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:21,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:23,015 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:26,891 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:29,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:39:30,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:30,870 INFO L93 Difference]: Finished difference Result 33911 states and 45113 transitions. [2021-11-13 01:39:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 01:39:30,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 4 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) Word has length 375 [2021-11-13 01:39:30,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:30,934 INFO L225 Difference]: With dead ends: 33911 [2021-11-13 01:39:30,934 INFO L226 Difference]: Without dead ends: 23208 [2021-11-13 01:39:30,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 738 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:39:30,962 INFO L933 BasicCegarLoop]: 2238 mSDtfsCounter, 1764 mSDsluCounter, 6018 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 36 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50342.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 8256 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.66ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51570.64ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:30,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1764 Valid, 8256 Invalid, 379 Unknown, 0 Unchecked, 19.66ms Time], IncrementalHoareTripleChecker [36 Valid, 328 Invalid, 15 Unknown, 0 Unchecked, 51570.64ms Time] [2021-11-13 01:39:30,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23208 states. [2021-11-13 01:39:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23208 to 22984. [2021-11-13 01:39:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22984 states, 15825 states have (on average 1.22913112164297) internal successors, (19451), 16139 states have internal predecessors, (19451), 5562 states have call successors, (5562), 1601 states have call predecessors, (5562), 1594 states have return successors, (5654), 5458 states have call predecessors, (5654), 5541 states have call successors, (5654) [2021-11-13 01:39:34,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22984 states to 22984 states and 30667 transitions. [2021-11-13 01:39:34,376 INFO L78 Accepts]: Start accepts. Automaton has 22984 states and 30667 transitions. Word has length 375 [2021-11-13 01:39:34,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:34,377 INFO L470 AbstractCegarLoop]: Abstraction has 22984 states and 30667 transitions. [2021-11-13 01:39:34,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 4 states have call successors, (56), 3 states have call predecessors, (56), 1 states have return successors, (52), 4 states have call predecessors, (52), 4 states have call successors, (52) [2021-11-13 01:39:34,377 INFO L276 IsEmpty]: Start isEmpty. Operand 22984 states and 30667 transitions. [2021-11-13 01:39:34,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-13 01:39:34,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:34,386 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:34,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:34,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:34,587 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:39:34,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:34,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1589595827, now seen corresponding path program 1 times [2021-11-13 01:39:34,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:34,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939265511] [2021-11-13 01:39:34,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:34,590 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:34,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:34,591 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:34,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2021-11-13 01:39:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:37,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 01:39:37,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:38,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-13 01:39:38,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-13 01:39:38,770 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-13 01:39:38,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:40,364 INFO L354 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2021-11-13 01:39:40,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 44 [2021-11-13 01:39:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-13 01:39:41,060 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:41,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939265511] [2021-11-13 01:39:41,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1939265511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:41,060 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:41,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 8 [2021-11-13 01:39:41,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103620588] [2021-11-13 01:39:41,061 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:41,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:39:41,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:41,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:39:41,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:39:41,062 INFO L87 Difference]: Start difference. First operand 22984 states and 30667 transitions. Second operand has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) [2021-11-13 01:39:48,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:39:48,635 INFO L93 Difference]: Finished difference Result 46630 states and 62482 transitions. [2021-11-13 01:39:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 01:39:48,639 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) Word has length 424 [2021-11-13 01:39:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:39:48,738 INFO L225 Difference]: With dead ends: 46630 [2021-11-13 01:39:48,738 INFO L226 Difference]: Without dead ends: 25464 [2021-11-13 01:39:48,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 840 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-13 01:39:48,802 INFO L933 BasicCegarLoop]: 1931 mSDtfsCounter, 128 mSDsluCounter, 7071 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 9002 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 637 IncrementalHoareTripleChecker+Unchecked, 337.38ms IncrementalHoareTripleChecker+Time [2021-11-13 01:39:48,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 9002 Invalid, 691 Unknown, 0 Unchecked, 15.33ms Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 637 Unchecked, 337.38ms Time] [2021-11-13 01:39:48,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25464 states. [2021-11-13 01:39:52,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25464 to 24552. [2021-11-13 01:39:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24552 states, 16749 states have (on average 1.2348796943101081) internal successors, (20683), 17091 states have internal predecessors, (20683), 6066 states have call successors, (6066), 1741 states have call predecessors, (6066), 1734 states have return successors, (6158), 5962 states have call predecessors, (6158), 6045 states have call successors, (6158) [2021-11-13 01:39:52,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24552 states to 24552 states and 32907 transitions. [2021-11-13 01:39:52,828 INFO L78 Accepts]: Start accepts. Automaton has 24552 states and 32907 transitions. Word has length 424 [2021-11-13 01:39:52,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:39:52,829 INFO L470 AbstractCegarLoop]: Abstraction has 24552 states and 32907 transitions. [2021-11-13 01:39:52,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 26.5) internal successors, (212), 8 states have internal predecessors, (212), 6 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 6 states have call predecessors, (63), 6 states have call successors, (63) [2021-11-13 01:39:52,829 INFO L276 IsEmpty]: Start isEmpty. Operand 24552 states and 32907 transitions. [2021-11-13 01:39:52,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-13 01:39:52,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:39:52,840 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:39:52,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2021-11-13 01:39:53,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:39:53,053 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:39:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:39:53,054 INFO L85 PathProgramCache]: Analyzing trace with hash 371978831, now seen corresponding path program 1 times [2021-11-13 01:39:53,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:39:53,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13987134] [2021-11-13 01:39:53,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:39:53,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:39:53,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:39:53,057 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:39:53,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-13 01:39:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:39:55,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 2136 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 01:39:55,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:39:56,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-13 01:39:57,043 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2021-11-13 01:39:57,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:39:57,423 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-13 01:39:57,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 21 [2021-11-13 01:39:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-13 01:39:58,093 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:39:58,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [13987134] [2021-11-13 01:39:58,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [13987134] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:39:58,093 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:39:58,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 8 [2021-11-13 01:39:58,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769437943] [2021-11-13 01:39:58,094 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:39:58,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 01:39:58,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:39:58,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 01:39:58,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-13 01:39:58,096 INFO L87 Difference]: Start difference. First operand 24552 states and 32907 transitions. Second operand has 8 states, 8 states have (on average 25.5) internal successors, (204), 8 states have internal predecessors, (204), 5 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 5 states have call predecessors, (63), 5 states have call successors, (63) [2021-11-13 01:40:00,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:02,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:04,282 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:07,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:09,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:11,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:13,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:15,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:17,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:21,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:23,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:24,962 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:31,234 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:33,254 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:35,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:38,122 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:40,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:42,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:44,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:47,455 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:50,207 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:52,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:55,002 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:40:57,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:00,241 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:03,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:05,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:07,423 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:09,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:17,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:19,403 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:22,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:23,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:25,732 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:27,747 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:30,086 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:31,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:35,521 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:37,538 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:39,552 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:41,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:43,704 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:45,715 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:48,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:49,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:51,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:53,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:55,592 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:57,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:41:59,728 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:01,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:03,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:05,894 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:07,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:09,931 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:12,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:16,116 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:18,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:20,144 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 [] [2021-11-13 01:42:23,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:23,316 INFO L93 Difference]: Finished difference Result 49276 states and 66252 transitions. [2021-11-13 01:42:23,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 01:42:23,319 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 8 states have internal predecessors, (204), 5 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 5 states have call predecessors, (63), 5 states have call successors, (63) Word has length 424 [2021-11-13 01:42:23,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:23,395 INFO L225 Difference]: With dead ends: 49276 [2021-11-13 01:42:23,395 INFO L226 Difference]: Without dead ends: 26990 [2021-11-13 01:42:23,451 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 850 GetRequests, 840 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-13 01:42:23,452 INFO L933 BasicCegarLoop]: 1935 mSDtfsCounter, 143 mSDsluCounter, 10355 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 7 mSolverCounterUnsat, 49 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 138295.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 12290 SdHoareTripleChecker+Invalid, 1268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.86ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 49 IncrementalHoareTripleChecker+Unknown, 341 IncrementalHoareTripleChecker+Unchecked, 140878.26ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:23,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 12290 Invalid, 1268 Unknown, 0 Unchecked, 23.86ms Time], IncrementalHoareTripleChecker [7 Valid, 871 Invalid, 49 Unknown, 341 Unchecked, 140878.26ms Time] [2021-11-13 01:42:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26990 states. [2021-11-13 01:42:27,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26990 to 24692. [2021-11-13 01:42:27,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24692 states, 16833 states have (on average 1.235370997445494) internal successors, (20795), 17175 states have internal predecessors, (20795), 6122 states have call successors, (6122), 1741 states have call predecessors, (6122), 1734 states have return successors, (6214), 6018 states have call predecessors, (6214), 6101 states have call successors, (6214) [2021-11-13 01:42:27,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24692 states to 24692 states and 33131 transitions. [2021-11-13 01:42:27,313 INFO L78 Accepts]: Start accepts. Automaton has 24692 states and 33131 transitions. Word has length 424 [2021-11-13 01:42:27,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:27,314 INFO L470 AbstractCegarLoop]: Abstraction has 24692 states and 33131 transitions. [2021-11-13 01:42:27,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 25.5) internal successors, (204), 8 states have internal predecessors, (204), 5 states have call successors, (67), 3 states have call predecessors, (67), 3 states have return successors, (63), 5 states have call predecessors, (63), 5 states have call successors, (63) [2021-11-13 01:42:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 24692 states and 33131 transitions. [2021-11-13 01:42:27,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-13 01:42:27,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:27,321 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 6, 6, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:27,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (51)] Ended with exit code 0 [2021-11-13 01:42:27,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:27,522 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:42:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:27,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1280682355, now seen corresponding path program 1 times [2021-11-13 01:42:27,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:27,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091942859] [2021-11-13 01:42:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:27,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:27,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:27,525 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:27,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Waiting until timeout for monitored process [2021-11-13 01:42:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:30,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 2065 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:30,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:31,081 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-13 01:42:31,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:31,874 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2021-11-13 01:42:31,875 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:31,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091942859] [2021-11-13 01:42:31,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091942859] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:31,875 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:31,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:42:31,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907249924] [2021-11-13 01:42:31,875 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:31,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:42:31,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:31,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:42:31,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:31,876 INFO L87 Difference]: Start difference. First operand 24692 states and 33131 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-13 01:42:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:35,901 INFO L93 Difference]: Finished difference Result 49118 states and 66124 transitions. [2021-11-13 01:42:35,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:42:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 401 [2021-11-13 01:42:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:35,971 INFO L225 Difference]: With dead ends: 49118 [2021-11-13 01:42:35,971 INFO L226 Difference]: Without dead ends: 24890 [2021-11-13 01:42:36,026 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 800 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:36,026 INFO L933 BasicCegarLoop]: 1823 mSDtfsCounter, 30 mSDsluCounter, 1816 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 105.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3639 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.89ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 119.39ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:36,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 3639 Invalid, 32 Unknown, 0 Unchecked, 5.89ms Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 119.39ms Time] [2021-11-13 01:42:36,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24890 states. [2021-11-13 01:42:40,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24890 to 24890. [2021-11-13 01:42:40,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24890 states, 17031 states have (on average 1.233926369561388) internal successors, (21015), 17373 states have internal predecessors, (21015), 6122 states have call successors, (6122), 1741 states have call predecessors, (6122), 1734 states have return successors, (6214), 6018 states have call predecessors, (6214), 6101 states have call successors, (6214) [2021-11-13 01:42:40,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24890 states to 24890 states and 33351 transitions. [2021-11-13 01:42:40,442 INFO L78 Accepts]: Start accepts. Automaton has 24890 states and 33351 transitions. Word has length 401 [2021-11-13 01:42:40,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:42:40,443 INFO L470 AbstractCegarLoop]: Abstraction has 24890 states and 33351 transitions. [2021-11-13 01:42:40,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2021-11-13 01:42:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 24890 states and 33351 transitions. [2021-11-13 01:42:40,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-11-13 01:42:40,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:42:40,453 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:42:40,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (52)] Forceful destruction successful, exit code 0 [2021-11-13 01:42:40,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:42:40,655 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:42:40,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:42:40,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1807978191, now seen corresponding path program 1 times [2021-11-13 01:42:40,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:42:40,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490022624] [2021-11-13 01:42:40,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:42:40,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:42:40,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:42:40,659 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:42:40,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Waiting until timeout for monitored process [2021-11-13 01:42:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:42:43,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 2137 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 01:42:43,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:42:44,244 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2021-11-13 01:42:44,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:42:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 584 trivial. 0 not checked. [2021-11-13 01:42:44,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:42:44,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490022624] [2021-11-13 01:42:44,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490022624] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 01:42:44,957 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 01:42:44,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-13 01:42:44,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238560446] [2021-11-13 01:42:44,958 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 01:42:44,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 01:42:44,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 01:42:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 01:42:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:44,959 INFO L87 Difference]: Start difference. First operand 24890 states and 33351 transitions. Second operand has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:42:47,132 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 [] [2021-11-13 01:42:48,805 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:50,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:52,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:55,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 01:42:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 01:42:58,776 INFO L93 Difference]: Finished difference Result 47524 states and 63614 transitions. [2021-11-13 01:42:58,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 01:42:58,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 424 [2021-11-13 01:42:58,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 01:42:59,014 INFO L225 Difference]: With dead ends: 47524 [2021-11-13 01:42:59,014 INFO L226 Difference]: Without dead ends: 25058 [2021-11-13 01:42:59,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 846 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-13 01:42:59,073 INFO L933 BasicCegarLoop]: 1829 mSDtfsCounter, 5 mSDsluCounter, 1825 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9891.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3654 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.64ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10004.75ms IncrementalHoareTripleChecker+Time [2021-11-13 01:42:59,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 3654 Invalid, 18 Unknown, 0 Unchecked, 5.64ms Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 4 Unknown, 0 Unchecked, 10004.75ms Time] [2021-11-13 01:42:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25058 states. [2021-11-13 01:43:02,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25058 to 25002. [2021-11-13 01:43:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25002 states, 17143 states have (on average 1.232398063349472) internal successors, (21127), 17485 states have internal predecessors, (21127), 6122 states have call successors, (6122), 1741 states have call predecessors, (6122), 1734 states have return successors, (6214), 6018 states have call predecessors, (6214), 6101 states have call successors, (6214) [2021-11-13 01:43:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25002 states to 25002 states and 33463 transitions. [2021-11-13 01:43:02,918 INFO L78 Accepts]: Start accepts. Automaton has 25002 states and 33463 transitions. Word has length 424 [2021-11-13 01:43:02,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 01:43:02,919 INFO L470 AbstractCegarLoop]: Abstraction has 25002 states and 33463 transitions. [2021-11-13 01:43:02,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-13 01:43:02,919 INFO L276 IsEmpty]: Start isEmpty. Operand 25002 states and 33463 transitions. [2021-11-13 01:43:02,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-13 01:43:02,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 01:43:02,929 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 8, 8, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 01:43:02,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (53)] Ended with exit code 0 [2021-11-13 01:43:03,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 01:43:03,142 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-13 01:43:03,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 01:43:03,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1602321005, now seen corresponding path program 1 times [2021-11-13 01:43:03,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 01:43:03,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204357963] [2021-11-13 01:43:03,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:03,145 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 01:43:03,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 01:43:03,145 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 01:43:03,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-13 01:43:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:06,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:06,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:06,815 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2021-11-13 01:43:06,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2021-11-13 01:43:07,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 01:43:07,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204357963] [2021-11-13 01:43:07,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204357963] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:43:07,624 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [186715916] [2021-11-13 01:43:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:07,624 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 01:43:07,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 01:43:07,626 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 01:43:07,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-13 01:43:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 01:43:11,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 2185 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 01:43:11,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 01:43:12,353 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2021-11-13 01:43:12,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 01:43:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 589 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2021-11-13 01:43:13,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [186715916] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 01:43:13,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654243698] [2021-11-13 01:43:13,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 01:43:13,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 01:43:13,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 01:43:13,097 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 01:43:13,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b207907-444b-44ed-b92b-096ba389d57f/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process