./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--amd--amd8111e.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:44:32,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:44:32,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:44:32,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:44:32,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:44:32,834 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:44:32,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:44:32,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:44:32,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:44:32,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:44:32,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:44:32,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:44:32,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:44:32,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:44:32,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:44:32,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:44:32,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:44:32,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:44:32,865 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:44:32,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:44:32,874 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:44:32,875 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:44:32,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:44:32,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:44:32,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:44:32,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:44:32,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:44:32,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:44:32,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:44:32,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:44:32,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:44:32,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:44:32,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:44:32,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:44:32,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:44:32,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:44:32,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:44:32,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:44:32,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:44:32,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:44:32,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:44:32,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:44:32,944 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:44:32,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:44:32,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:44:32,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:44:32,947 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:44:32,947 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:44:32,947 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:44:32,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:44:32,948 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:44:32,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:44:32,949 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:44:32,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:44:32,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:44:32,950 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:44:32,950 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:44:32,950 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:44:32,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:44:32,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:44:32,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:44:32,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:44:32,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:44:32,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:44:32,953 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:44:32,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:44:32,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:44:32,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:44:32,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:44:32,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:44:32,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:44:32,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:44:32,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:44:32,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:44:32,957 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:44:32,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:44:32,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:44:32,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:44:32,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:44:32,959 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_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 [2021-11-19 13:44:33,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:44:33,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:44:33,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:44:33,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:44:33,344 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:44:33,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-19 13:44:33,432 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/f39578b40/317e9b08ae174af199cd90635527a0aa/FLAG720cb3a9e [2021-11-19 13:44:34,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:44:34,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-19 13:44:34,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/f39578b40/317e9b08ae174af199cd90635527a0aa/FLAG720cb3a9e [2021-11-19 13:44:34,768 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/f39578b40/317e9b08ae174af199cd90635527a0aa [2021-11-19 13:44:34,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:44:34,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:44:34,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:44:34,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:44:34,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:44:34,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:44:34" (1/1) ... [2021-11-19 13:44:34,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc583a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:34, skipping insertion in model container [2021-11-19 13:44:34,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:44:34" (1/1) ... [2021-11-19 13:44:34,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:44:35,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:44:37,385 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:44:37,533 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:44:37,534 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 13:44:39,397 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-19 13:44:39,400 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-19 13:44:39,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-19 13:44:39,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-19 13:44:39,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-19 13:44:39,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-19 13:44:39,403 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-19 13:44:39,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-19 13:44:39,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-19 13:44:39,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-19 13:44:39,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-19 13:44:39,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-19 13:44:39,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-19 13:44:39,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-19 13:44:39,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-19 13:44:39,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-19 13:44:39,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-19 13:44:39,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-19 13:44:39,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-19 13:44:39,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-19 13:44:39,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-19 13:44:39,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-19 13:44:39,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-19 13:44:39,412 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-19 13:44:39,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-19 13:44:39,413 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-19 13:44:39,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-19 13:44:39,414 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-19 13:44:39,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-19 13:44:39,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-19 13:44:39,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-19 13:44:39,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-19 13:44:39,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-19 13:44:39,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-19 13:44:39,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-19 13:44:39,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-19 13:44:39,419 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-19 13:44:39,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-19 13:44:39,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-19 13:44:39,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-19 13:44:39,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-19 13:44:39,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-19 13:44:39,422 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-19 13:44:39,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-19 13:44:39,423 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-19 13:44:39,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-19 13:44:39,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-19 13:44:39,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-19 13:44:39,425 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-19 13:44:39,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-19 13:44:39,426 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-19 13:44:39,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-19 13:44:39,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-19 13:44:39,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-19 13:44:39,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-19 13:44:39,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-19 13:44:39,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-19 13:44:39,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-19 13:44:39,430 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-19 13:44:39,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-19 13:44:39,431 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-19 13:44:39,432 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-19 13:44:39,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-19 13:44:39,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-19 13:44:39,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-19 13:44:39,434 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-19 13:44:39,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-19 13:44:39,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-19 13:44:39,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-19 13:44:39,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-19 13:44:39,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-19 13:44:39,437 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-19 13:44:39,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-19 13:44:39,438 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-19 13:44:39,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-19 13:44:39,463 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-19 13:44:39,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-19 13:44:39,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-19 13:44:39,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-19 13:44:39,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-19 13:44:39,465 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-19 13:44:39,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-19 13:44:39,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-19 13:44:39,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-19 13:44:39,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-19 13:44:39,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-19 13:44:39,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-19 13:44:39,468 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-19 13:44:39,489 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:44:39,520 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:44:39,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78768530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:39, skipping insertion in model container [2021-11-19 13:44:39,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:44:39,522 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:44:39,529 INFO L158 Benchmark]: Toolchain (without parser) took 4750.58ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 71.7MB in the beginning and 122.5MB in the end (delta: -50.7MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2021-11-19 13:44:39,530 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:44:39,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4746.16ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 71.4MB in the beginning and 122.5MB in the end (delta: -51.1MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2021-11-19 13:44:39,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 54.4MB in the beginning and 54.4MB in the end (delta: 30.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4746.16ms. Allocated memory was 123.7MB in the beginning and 182.5MB in the end (delta: 58.7MB). Free memory was 71.4MB in the beginning and 122.5MB in the end (delta: -51.1MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7334]: 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_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:44:41,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:44:41,898 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:44:41,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:44:41,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:44:41,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:44:41,960 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:44:41,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:44:41,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:44:41,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:44:41,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:44:41,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:44:41,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:44:41,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:44:41,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:44:41,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:44:41,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:44:41,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:44:41,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:44:42,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:44:42,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:44:42,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:44:42,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:44:42,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:44:42,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:44:42,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:44:42,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:44:42,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:44:42,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:44:42,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:44:42,027 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:44:42,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:44:42,030 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:44:42,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:44:42,033 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:44:42,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:44:42,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:44:42,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:44:42,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:44:42,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:44:42,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:44:42,038 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:44:42,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:44:42,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:44:42,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:44:42,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:44:42,085 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:44:42,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:44:42,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:44:42,085 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:44:42,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:44:42,086 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:44:42,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:44:42,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:44:42,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:44:42,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:44:42,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:44:42,089 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:44:42,089 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:44:42,089 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:44:42,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:44:42,090 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:44:42,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:44:42,090 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:44:42,090 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:44:42,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:44:42,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:44:42,091 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:44:42,091 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:44:42,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:44:42,092 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:44:42,092 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:44:42,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:44:42,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:44:42,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:44:42,093 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_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a88d6e7bf2b158373436b40548cbe71d2b3a1f454b281f07c3b1b175d00e8682 [2021-11-19 13:44:42,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:44:42,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:44:42,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:44:42,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:44:42,546 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:44:42,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-19 13:44:42,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/87185f690/06901febeb674915a988daf13ec09e8f/FLAGf9ca2b1bf [2021-11-19 13:44:43,682 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:44:43,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-19 13:44:43,781 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/87185f690/06901febeb674915a988daf13ec09e8f/FLAGf9ca2b1bf [2021-11-19 13:44:44,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/data/87185f690/06901febeb674915a988daf13ec09e8f [2021-11-19 13:44:44,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:44:44,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:44:44,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:44:44,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:44:44,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:44:44,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:44:44" (1/1) ... [2021-11-19 13:44:44,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30391938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:44, skipping insertion in model container [2021-11-19 13:44:44,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:44:44" (1/1) ... [2021-11-19 13:44:44,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:44:44,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:44:48,616 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-19 13:44:48,618 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-19 13:44:48,619 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-19 13:44:48,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-19 13:44:48,620 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-19 13:44:48,621 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-19 13:44:48,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-19 13:44:48,623 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-19 13:44:48,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-19 13:44:48,624 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-19 13:44:48,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-19 13:44:48,626 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-19 13:44:48,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-19 13:44:48,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-19 13:44:48,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-19 13:44:48,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-19 13:44:48,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-19 13:44:48,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-19 13:44:48,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-19 13:44:48,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-19 13:44:48,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-19 13:44:48,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-19 13:44:48,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-19 13:44:48,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-19 13:44:48,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-19 13:44:48,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-19 13:44:48,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-19 13:44:48,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-19 13:44:48,638 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-19 13:44:48,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-19 13:44:48,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-19 13:44:48,640 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-19 13:44:48,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-19 13:44:48,641 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-19 13:44:48,642 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-19 13:44:48,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-19 13:44:48,643 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-19 13:44:48,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-19 13:44:48,644 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-19 13:44:48,645 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-19 13:44:48,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-19 13:44:48,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-19 13:44:48,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-19 13:44:48,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-19 13:44:48,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-19 13:44:48,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-19 13:44:48,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-19 13:44:48,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-19 13:44:48,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-19 13:44:48,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-19 13:44:48,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-19 13:44:48,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-19 13:44:48,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-19 13:44:48,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-19 13:44:48,656 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-19 13:44:48,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-19 13:44:48,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-19 13:44:48,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-19 13:44:48,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-19 13:44:48,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-19 13:44:48,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-19 13:44:48,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-19 13:44:48,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-19 13:44:48,662 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-19 13:44:48,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-19 13:44:48,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-19 13:44:48,664 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-19 13:44:48,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-19 13:44:48,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-19 13:44:48,666 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-19 13:44:48,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-19 13:44:48,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-19 13:44:48,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-19 13:44:48,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-19 13:44:48,669 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-19 13:44:48,670 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-19 13:44:48,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-19 13:44:48,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-19 13:44:48,672 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-19 13:44:48,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-19 13:44:48,673 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-19 13:44:48,674 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-19 13:44:48,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-19 13:44:48,675 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-19 13:44:48,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-19 13:44:48,676 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-19 13:44:48,677 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-19 13:44:48,678 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-19 13:44:48,702 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:44:48,768 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:44:48,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:44:49,290 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-19 13:44:49,291 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-19 13:44:49,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-19 13:44:49,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-19 13:44:49,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-19 13:44:49,294 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-19 13:44:49,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-19 13:44:49,296 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-19 13:44:49,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-19 13:44:49,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-19 13:44:49,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-19 13:44:49,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-19 13:44:49,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-19 13:44:49,299 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-19 13:44:49,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-19 13:44:49,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-19 13:44:49,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-19 13:44:49,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-19 13:44:49,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-19 13:44:49,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-19 13:44:49,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-19 13:44:49,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-19 13:44:49,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-19 13:44:49,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-19 13:44:49,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-19 13:44:49,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-19 13:44:49,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-19 13:44:49,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-19 13:44:49,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-19 13:44:49,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-19 13:44:49,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-19 13:44:49,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-19 13:44:49,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-19 13:44:49,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-19 13:44:49,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-19 13:44:49,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-19 13:44:49,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-19 13:44:49,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-19 13:44:49,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-19 13:44:49,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-19 13:44:49,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-19 13:44:49,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-19 13:44:49,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-19 13:44:49,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-19 13:44:49,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-19 13:44:49,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-19 13:44:49,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-19 13:44:49,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-19 13:44:49,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-19 13:44:49,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-19 13:44:49,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-19 13:44:49,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-19 13:44:49,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-19 13:44:49,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-19 13:44:49,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-19 13:44:49,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-19 13:44:49,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-19 13:44:49,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-19 13:44:49,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-19 13:44:49,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-19 13:44:49,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-19 13:44:49,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-19 13:44:49,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-19 13:44:49,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-19 13:44:49,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-19 13:44:49,340 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-19 13:44:49,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-19 13:44:49,341 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-19 13:44:49,342 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-19 13:44:49,348 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-19 13:44:49,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-19 13:44:49,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-19 13:44:49,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-19 13:44:49,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-19 13:44:49,350 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-19 13:44:49,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-19 13:44:49,351 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-19 13:44:49,352 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-19 13:44:49,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-19 13:44:49,354 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-19 13:44:49,355 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-19 13:44:49,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-19 13:44:49,356 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-19 13:44:49,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-19 13:44:49,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-19 13:44:49,362 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-19 13:44:49,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-19 13:44:49,363 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-19 13:44:49,370 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:44:49,417 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:44:49,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410486,410499] [2021-11-19 13:44:49,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410631,410644] [2021-11-19 13:44:49,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410777,410790] [2021-11-19 13:44:49,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[410942,410955] [2021-11-19 13:44:49,868 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411100,411113] [2021-11-19 13:44:49,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411258,411271] [2021-11-19 13:44:49,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411416,411429] [2021-11-19 13:44:49,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411576,411589] [2021-11-19 13:44:49,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411735,411748] [2021-11-19 13:44:49,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[411874,411887] [2021-11-19 13:44:49,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412016,412029] [2021-11-19 13:44:49,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412165,412178] [2021-11-19 13:44:49,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412304,412317] [2021-11-19 13:44:49,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412459,412472] [2021-11-19 13:44:49,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412619,412632] [2021-11-19 13:44:49,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412770,412783] [2021-11-19 13:44:49,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[412921,412934] [2021-11-19 13:44:49,873 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413073,413086] [2021-11-19 13:44:49,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413222,413235] [2021-11-19 13:44:49,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413370,413383] [2021-11-19 13:44:49,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413527,413540] [2021-11-19 13:44:49,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413676,413689] [2021-11-19 13:44:49,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413832,413845] [2021-11-19 13:44:49,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[413985,413998] [2021-11-19 13:44:49,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414131,414144] [2021-11-19 13:44:49,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414274,414287] [2021-11-19 13:44:49,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414426,414439] [2021-11-19 13:44:49,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414572,414585] [2021-11-19 13:44:49,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414717,414730] [2021-11-19 13:44:49,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[414871,414884] [2021-11-19 13:44:49,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415022,415035] [2021-11-19 13:44:49,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415177,415190] [2021-11-19 13:44:49,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415329,415342] [2021-11-19 13:44:49,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415484,415497] [2021-11-19 13:44:49,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415648,415661] [2021-11-19 13:44:49,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415804,415817] [2021-11-19 13:44:49,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[415968,415981] [2021-11-19 13:44:49,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416110,416123] [2021-11-19 13:44:49,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416268,416281] [2021-11-19 13:44:49,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416435,416448] [2021-11-19 13:44:49,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416594,416607] [2021-11-19 13:44:49,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416753,416766] [2021-11-19 13:44:49,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[416902,416915] [2021-11-19 13:44:49,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417049,417062] [2021-11-19 13:44:49,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417188,417201] [2021-11-19 13:44:49,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417351,417364] [2021-11-19 13:44:49,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417517,417530] [2021-11-19 13:44:49,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417681,417694] [2021-11-19 13:44:49,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[417846,417859] [2021-11-19 13:44:49,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418011,418024] [2021-11-19 13:44:49,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418177,418190] [2021-11-19 13:44:49,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418342,418355] [2021-11-19 13:44:49,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418509,418522] [2021-11-19 13:44:49,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418669,418682] [2021-11-19 13:44:49,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418831,418844] [2021-11-19 13:44:49,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[418990,419003] [2021-11-19 13:44:49,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419136,419149] [2021-11-19 13:44:49,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419279,419292] [2021-11-19 13:44:49,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419423,419436] [2021-11-19 13:44:49,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419566,419579] [2021-11-19 13:44:49,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419710,419723] [2021-11-19 13:44:49,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419851,419864] [2021-11-19 13:44:49,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[419989,420002] [2021-11-19 13:44:49,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420147,420160] [2021-11-19 13:44:49,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420306,420319] [2021-11-19 13:44:49,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420462,420475] [2021-11-19 13:44:49,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420611,420624] [2021-11-19 13:44:49,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420763,420776] [2021-11-19 13:44:49,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[420914,420927] [2021-11-19 13:44:49,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421063,421076] [2021-11-19 13:44:49,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421215,421228] [2021-11-19 13:44:49,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421363,421376] [2021-11-19 13:44:49,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421516,421529] [2021-11-19 13:44:49,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421667,421680] [2021-11-19 13:44:49,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421817,421830] [2021-11-19 13:44:49,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[421964,421977] [2021-11-19 13:44:49,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422115,422128] [2021-11-19 13:44:49,903 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422266,422279] [2021-11-19 13:44:49,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422414,422427] [2021-11-19 13:44:49,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422580,422593] [2021-11-19 13:44:49,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422749,422762] [2021-11-19 13:44:49,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[422916,422929] [2021-11-19 13:44:49,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423084,423097] [2021-11-19 13:44:49,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423234,423247] [2021-11-19 13:44:49,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423381,423394] [2021-11-19 13:44:49,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423542,423555] [2021-11-19 13:44:49,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423712,423725] [2021-11-19 13:44:49,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i[423874,423887] [2021-11-19 13:44:49,918 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:44:50,444 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:44:50,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50 WrapperNode [2021-11-19 13:44:50,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:44:50,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:44:50,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:44:50,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:44:50,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:50,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:50,919 INFO L137 Inliner]: procedures = 686, calls = 2071, calls flagged for inlining = 313, calls inlined = 225, statements flattened = 4565 [2021-11-19 13:44:50,924 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:44:50,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:44:50,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:44:50,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:44:50,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:50,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:50,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:50,999 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:51,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:51,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:51,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:51,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:44:51,232 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:44:51,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:44:51,232 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:44:51,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (1/1) ... [2021-11-19 13:44:51,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:44:51,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:44:51,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:44:51,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:44:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:44:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 13:44:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 13:44:51,316 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 13:44:51,316 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_stats [2021-11-19 13:44:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_stats [2021-11-19 13:44:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-19 13:44:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-19 13:44:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 13:44:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 13:44:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 13:44:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 13:44:51,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:44:51,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 13:44:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 13:44:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 13:44:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:44:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 13:44:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2021-11-19 13:44:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2021-11-19 13:44:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 13:44:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 13:44:51,318 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-19 13:44:51,318 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-19 13:44:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:44:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 13:44:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_amd8111e_priv [2021-11-19 13:44:51,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_amd8111e_priv [2021-11-19 13:44:51,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:44:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 13:44:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-19 13:44:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-19 13:44:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 13:44:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 13:44:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-19 13:44:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-19 13:44:51,320 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 13:44:51,320 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 13:44:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2021-11-19 13:44:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:44:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 13:44:51,321 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:44:51,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-19 13:44:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_tx_timeout [2021-11-19 13:44:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_tx_timeout [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:44:51,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 13:44:51,322 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 13:44:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 13:44:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_read [2021-11-19 13:44:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_read [2021-11-19 13:44:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_nway_reset [2021-11-19 13:44:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_nway_reset [2021-11-19 13:44:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 13:44:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 13:44:51,323 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_rx_buff_len [2021-11-19 13:44:51,323 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_rx_buff_len [2021-11-19 13:44:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 13:44:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 13:44:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_open [2021-11-19 13:44:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_open [2021-11-19 13:44:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 13:44:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 13:44:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:44:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 13:44:51,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:44:51,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 13:44:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 13:44:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 13:44:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:44:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 13:44:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 13:44:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 13:44:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 13:44:51,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 13:44:51,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 13:44:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 13:44:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 13:44:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 13:44:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:44:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 13:44:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-19 13:44:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-19 13:44:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 13:44:51,326 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 13:44:51,326 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_write_phy [2021-11-19 13:44:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_write_phy [2021-11-19 13:44:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:44:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 13:44:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:44:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_phy [2021-11-19 13:44:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_phy [2021-11-19 13:44:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-19 13:44:51,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-19 13:44:51,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 13:44:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 13:44:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:44:51,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 13:44:51,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 13:44:51,329 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-19 13:44:51,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-19 13:44:51,330 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_remove_one [2021-11-19 13:44:51,330 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_remove_one [2021-11-19 13:44:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-19 13:44:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-19 13:44:51,331 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 13:44:51,331 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_free_skbs [2021-11-19 13:44:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_free_skbs [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:44:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 13:44:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-19 13:44:51,332 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 13:44:51,332 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-19 13:44:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-19 13:44:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-19 13:44:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-19 13:44:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2021-11-19 13:44:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2021-11-19 13:44:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:44:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:44:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_close [2021-11-19 13:44:51,333 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_close [2021-11-19 13:44:51,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 13:44:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:44:51,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 13:44:51,334 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-19 13:44:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-19 13:44:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_mdio_write [2021-11-19 13:44:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_mdio_write [2021-11-19 13:44:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_read_mib [2021-11-19 13:44:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_read_mib [2021-11-19 13:44:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 13:44:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 13:44:51,335 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_interrupt [2021-11-19 13:44:51,335 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_interrupt [2021-11-19 13:44:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 13:44:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 13:44:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_coalesce [2021-11-19 13:44:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_coalesce [2021-11-19 13:44:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 13:44:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 13:44:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_122 [2021-11-19 13:44:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_122 [2021-11-19 13:44:51,336 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-19 13:44:51,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:44:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:44:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-19 13:44:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-19 13:44:51,337 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:44:51,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:44:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 13:44:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2021-11-19 13:44:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2021-11-19 13:44:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 13:44:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 13:44:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:44:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_amd8111e_priv [2021-11-19 13:44:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_amd8111e_priv [2021-11-19 13:44:51,338 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_disable_interrupt [2021-11-19 13:44:51,338 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_disable_interrupt [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-19 13:44:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_set_multicast_list [2021-11-19 13:44:51,339 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_set_multicast_list [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 13:44:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_resume [2021-11-19 13:44:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_resume [2021-11-19 13:44:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:44:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 13:44:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 13:44:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 13:44:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 13:44:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 13:44:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 13:44:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 13:44:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_restart [2021-11-19 13:44:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_restart [2021-11-19 13:44:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-19 13:44:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-19 13:44:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:44:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 13:44:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:44:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 13:44:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 13:44:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 13:44:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-19 13:44:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-19 13:44:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:44:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-19 13:44:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 13:44:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 13:44:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:44:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 13:44:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:44:51,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 13:44:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_stop_chip [2021-11-19 13:44:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_stop_chip [2021-11-19 13:44:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:44:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 13:44:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_poll [2021-11-19 13:44:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_poll [2021-11-19 13:44:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 13:44:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 13:44:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:44:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 13:44:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-19 13:44:51,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-19 13:44:51,344 INFO L130 BoogieDeclarations]: Found specification of procedure amd8111e_get_regs_len [2021-11-19 13:44:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure amd8111e_get_regs_len [2021-11-19 13:44:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_127 [2021-11-19 13:44:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_127 [2021-11-19 13:44:51,345 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-19 13:44:51,345 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-19 13:44:52,236 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:44:52,243 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:44:58,927 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 13:45:30,362 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:45:30,383 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:45:30,384 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 13:45:30,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:45:30 BoogieIcfgContainer [2021-11-19 13:45:30,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:45:30,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:45:30,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:45:30,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:45:30,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:44:44" (1/3) ... [2021-11-19 13:45:30,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660342e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:45:30, skipping insertion in model container [2021-11-19 13:45:30,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:44:50" (2/3) ... [2021-11-19 13:45:30,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@660342e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:45:30, skipping insertion in model container [2021-11-19 13:45:30,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:45:30" (3/3) ... [2021-11-19 13:45:30,397 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--amd--amd8111e.ko.cil.i [2021-11-19 13:45:30,403 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:45:30,403 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-19 13:45:30,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:45:30,470 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:45:30,470 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-19 13:45:30,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 1820 states, 1169 states have (on average 1.2472198460222412) internal successors, (1458), 1232 states have internal predecessors, (1458), 512 states have call successors, (512), 112 states have call predecessors, (512), 111 states have return successors, (508), 499 states have call predecessors, (508), 508 states have call successors, (508) [2021-11-19 13:45:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-19 13:45:30,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:30,537 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:30,538 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)] === [2021-11-19 13:45:30,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:30,543 INFO L85 PathProgramCache]: Analyzing trace with hash 318999828, now seen corresponding path program 1 times [2021-11-19 13:45:30,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:30,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852836833] [2021-11-19 13:45:30,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:30,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:30,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:30,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:30,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:45:31,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:31,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:31,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:32,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:32,578 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:32,578 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:32,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852836833] [2021-11-19 13:45:32,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852836833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:32,579 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:32,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:32,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120556599] [2021-11-19 13:45:32,582 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:32,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:32,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:32,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:32,637 INFO L87 Difference]: Start difference. First operand has 1820 states, 1169 states have (on average 1.2472198460222412) internal successors, (1458), 1232 states have internal predecessors, (1458), 512 states have call successors, (512), 112 states have call predecessors, (512), 111 states have return successors, (508), 499 states have call predecessors, (508), 508 states have call successors, (508) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:45:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:33,069 INFO L93 Difference]: Finished difference Result 3607 states and 5031 transitions. [2021-11-19 13:45:33,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:33,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-19 13:45:33,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:33,118 INFO L225 Difference]: With dead ends: 3607 [2021-11-19 13:45:33,118 INFO L226 Difference]: Without dead ends: 1802 [2021-11-19 13:45:33,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:33,144 INFO L933 BasicCegarLoop]: 2435 mSDtfsCounter, 2391 mSDsluCounter, 2433 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:33,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2393 Valid, 4868 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:33,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2021-11-19 13:45:33,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1802. [2021-11-19 13:45:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1158 states have (on average 1.2150259067357514) internal successors, (1407), 1218 states have internal predecessors, (1407), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:33,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2421 transitions. [2021-11-19 13:45:33,391 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2421 transitions. Word has length 64 [2021-11-19 13:45:33,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:33,393 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 2421 transitions. [2021-11-19 13:45:33,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 13:45:33,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2421 transitions. [2021-11-19 13:45:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 13:45:33,398 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:33,398 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:33,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:33,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:33,613 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-19 13:45:33,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:33,614 INFO L85 PathProgramCache]: Analyzing trace with hash 218495242, now seen corresponding path program 1 times [2021-11-19 13:45:33,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:33,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185353967] [2021-11-19 13:45:33,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:33,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:33,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:33,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:45:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:34,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:34,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:35,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:35,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:35,398 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:35,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185353967] [2021-11-19 13:45:35,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185353967] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:35,399 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:35,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:35,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91616148] [2021-11-19 13:45:35,400 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:35,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:35,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:35,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:35,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:35,402 INFO L87 Difference]: Start difference. First operand 1802 states and 2421 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:45:35,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:35,569 INFO L93 Difference]: Finished difference Result 1802 states and 2421 transitions. [2021-11-19 13:45:35,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:35,569 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 70 [2021-11-19 13:45:35,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:35,584 INFO L225 Difference]: With dead ends: 1802 [2021-11-19 13:45:35,584 INFO L226 Difference]: Without dead ends: 1800 [2021-11-19 13:45:35,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:35,587 INFO L933 BasicCegarLoop]: 2417 mSDtfsCounter, 2364 mSDsluCounter, 4830 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 7247 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:35,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2366 Valid, 7247 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-19 13:45:35,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2021-11-19 13:45:35,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1157 states have (on average 1.2143474503025065) internal successors, (1405), 1216 states have internal predecessors, (1405), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:35,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2419 transitions. [2021-11-19 13:45:35,718 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2419 transitions. Word has length 70 [2021-11-19 13:45:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:35,721 INFO L470 AbstractCegarLoop]: Abstraction has 1800 states and 2419 transitions. [2021-11-19 13:45:35,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 13:45:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2419 transitions. [2021-11-19 13:45:35,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 13:45:35,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:35,729 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:35,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:35,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:35,946 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-19 13:45:35,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash -310811808, now seen corresponding path program 1 times [2021-11-19 13:45:35,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:35,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270168466] [2021-11-19 13:45:35,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:35,948 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:35,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:35,950 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:36,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:45:36,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:36,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 803 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:36,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:37,377 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:37,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:37,695 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:37,695 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:37,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270168466] [2021-11-19 13:45:37,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270168466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:37,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:37,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:37,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684530767] [2021-11-19 13:45:37,696 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:37,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:37,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:37,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:37,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:37,698 INFO L87 Difference]: Start difference. First operand 1800 states and 2419 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:45:37,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:37,847 INFO L93 Difference]: Finished difference Result 1800 states and 2419 transitions. [2021-11-19 13:45:37,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:37,847 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 76 [2021-11-19 13:45:37,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:37,864 INFO L225 Difference]: With dead ends: 1800 [2021-11-19 13:45:37,864 INFO L226 Difference]: Without dead ends: 1798 [2021-11-19 13:45:37,866 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:37,869 INFO L933 BasicCegarLoop]: 2415 mSDtfsCounter, 2359 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:37,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 4828 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:37,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2021-11-19 13:45:37,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1798. [2021-11-19 13:45:37,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1156 states have (on average 1.2136678200692042) internal successors, (1403), 1214 states have internal predecessors, (1403), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2417 transitions. [2021-11-19 13:45:38,003 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2417 transitions. Word has length 76 [2021-11-19 13:45:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:38,004 INFO L470 AbstractCegarLoop]: Abstraction has 1798 states and 2417 transitions. [2021-11-19 13:45:38,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 13:45:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2417 transitions. [2021-11-19 13:45:38,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-19 13:45:38,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:38,008 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:38,030 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 13:45:38,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:38,220 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-19 13:45:38,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:38,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1751359827, now seen corresponding path program 1 times [2021-11-19 13:45:38,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:38,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961400723] [2021-11-19 13:45:38,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:38,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:38,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:38,223 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:38,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:45:39,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:39,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:39,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:39,616 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:39,968 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:39,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:39,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961400723] [2021-11-19 13:45:39,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961400723] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:39,968 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:39,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:39,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328408433] [2021-11-19 13:45:39,969 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:39,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:39,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:39,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:39,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:39,971 INFO L87 Difference]: Start difference. First operand 1798 states and 2417 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:45:40,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:40,167 INFO L93 Difference]: Finished difference Result 1798 states and 2417 transitions. [2021-11-19 13:45:40,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:40,167 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2021-11-19 13:45:40,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:40,185 INFO L225 Difference]: With dead ends: 1798 [2021-11-19 13:45:40,185 INFO L226 Difference]: Without dead ends: 1796 [2021-11-19 13:45:40,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:40,189 INFO L933 BasicCegarLoop]: 2413 mSDtfsCounter, 2348 mSDsluCounter, 4822 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2350 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:40,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2350 Valid, 7235 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:40,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1796 states. [2021-11-19 13:45:40,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1796 to 1796. [2021-11-19 13:45:40,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1155 states have (on average 1.212987012987013) internal successors, (1401), 1212 states have internal predecessors, (1401), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:40,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2415 transitions. [2021-11-19 13:45:40,407 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2415 transitions. Word has length 82 [2021-11-19 13:45:40,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:40,408 INFO L470 AbstractCegarLoop]: Abstraction has 1796 states and 2415 transitions. [2021-11-19 13:45:40,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 13:45:40,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2415 transitions. [2021-11-19 13:45:40,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 13:45:40,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:40,410 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:40,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:40,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:40,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-19 13:45:40,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:40,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2094392724, now seen corresponding path program 1 times [2021-11-19 13:45:40,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:40,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808970107] [2021-11-19 13:45:40,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:40,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:40,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:40,634 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:40,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:45:41,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:41,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:41,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:42,182 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:42,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:42,543 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:42,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808970107] [2021-11-19 13:45:42,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808970107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:42,543 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:42,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:42,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854864387] [2021-11-19 13:45:42,544 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:42,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:42,544 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:42,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:42,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:42,545 INFO L87 Difference]: Start difference. First operand 1796 states and 2415 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:45:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:42,705 INFO L93 Difference]: Finished difference Result 1796 states and 2415 transitions. [2021-11-19 13:45:42,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:42,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2021-11-19 13:45:42,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:42,724 INFO L225 Difference]: With dead ends: 1796 [2021-11-19 13:45:42,724 INFO L226 Difference]: Without dead ends: 1794 [2021-11-19 13:45:42,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:42,727 INFO L933 BasicCegarLoop]: 2411 mSDtfsCounter, 2340 mSDsluCounter, 4818 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 7229 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:42,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2342 Valid, 7229 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:42,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1794 states. [2021-11-19 13:45:42,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1794 to 1794. [2021-11-19 13:45:42,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1154 states have (on average 1.2123050259965338) internal successors, (1399), 1210 states have internal predecessors, (1399), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:42,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2413 transitions. [2021-11-19 13:45:42,862 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2413 transitions. Word has length 88 [2021-11-19 13:45:42,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:42,864 INFO L470 AbstractCegarLoop]: Abstraction has 1794 states and 2413 transitions. [2021-11-19 13:45:42,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 13:45:42,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2413 transitions. [2021-11-19 13:45:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-19 13:45:42,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:42,872 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:42,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:43,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:43,097 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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)] === [2021-11-19 13:45:43,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:43,097 INFO L85 PathProgramCache]: Analyzing trace with hash -363682455, now seen corresponding path program 1 times [2021-11-19 13:45:43,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:43,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579838476] [2021-11-19 13:45:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:43,098 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:43,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:43,099 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:43,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:45:44,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:44,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-19 13:45:44,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:45,580 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-19 13:45:45,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 12 proven. 36 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-19 13:45:47,690 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:47,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579838476] [2021-11-19 13:45:47,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579838476] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:45:47,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:45:47,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 20 [2021-11-19 13:45:47,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116467997] [2021-11-19 13:45:47,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:47,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 13:45:47,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:47,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 13:45:47,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:45:47,695 INFO L87 Difference]: Start difference. First operand 1794 states and 2413 transitions. Second operand has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2021-11-19 13:45:50,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:50,043 INFO L93 Difference]: Finished difference Result 3637 states and 4912 transitions. [2021-11-19 13:45:50,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 13:45:50,044 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 110 [2021-11-19 13:45:50,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:50,067 INFO L225 Difference]: With dead ends: 3637 [2021-11-19 13:45:50,067 INFO L226 Difference]: Without dead ends: 1860 [2021-11-19 13:45:50,078 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2021-11-19 13:45:50,080 INFO L933 BasicCegarLoop]: 2488 mSDtfsCounter, 431 mSDsluCounter, 26703 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 29191 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:50,080 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [611 Valid, 29191 Invalid, 449 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-19 13:45:50,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2021-11-19 13:45:50,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1794. [2021-11-19 13:45:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1794 states, 1154 states have (on average 1.2114384748700173) internal successors, (1398), 1209 states have internal predecessors, (1398), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:50,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1794 states to 1794 states and 2412 transitions. [2021-11-19 13:45:50,251 INFO L78 Accepts]: Start accepts. Automaton has 1794 states and 2412 transitions. Word has length 110 [2021-11-19 13:45:50,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:50,252 INFO L470 AbstractCegarLoop]: Abstraction has 1794 states and 2412 transitions. [2021-11-19 13:45:50,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.3) internal successors, (53), 9 states have internal predecessors, (53), 5 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2021-11-19 13:45:50,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1794 states and 2412 transitions. [2021-11-19 13:45:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 13:45:50,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:50,254 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:50,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:50,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:50,460 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-19 13:45:50,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:50,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1387025999, now seen corresponding path program 1 times [2021-11-19 13:45:50,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:50,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511819062] [2021-11-19 13:45:50,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:50,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:50,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:50,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:50,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:45:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:51,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:51,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:51,829 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:51,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:52,147 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:52,147 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:52,147 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511819062] [2021-11-19 13:45:52,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [511819062] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:52,148 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:52,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:52,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585251888] [2021-11-19 13:45:52,148 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:52,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:52,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:52,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:52,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:52,150 INFO L87 Difference]: Start difference. First operand 1794 states and 2412 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:45:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:52,334 INFO L93 Difference]: Finished difference Result 1794 states and 2412 transitions. [2021-11-19 13:45:52,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:52,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 94 [2021-11-19 13:45:52,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:52,349 INFO L225 Difference]: With dead ends: 1794 [2021-11-19 13:45:52,349 INFO L226 Difference]: Without dead ends: 1792 [2021-11-19 13:45:52,351 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:52,352 INFO L933 BasicCegarLoop]: 2408 mSDtfsCounter, 2331 mSDsluCounter, 4812 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2333 SdHoareTripleChecker+Valid, 7220 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:52,353 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2333 Valid, 7220 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:52,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2021-11-19 13:45:52,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 1792. [2021-11-19 13:45:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1792 states, 1153 states have (on average 1.2107545533391153) internal successors, (1396), 1207 states have internal predecessors, (1396), 508 states have call successors, (508), 111 states have call predecessors, (508), 110 states have return successors, (506), 497 states have call predecessors, (506), 506 states have call successors, (506) [2021-11-19 13:45:52,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2410 transitions. [2021-11-19 13:45:52,529 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2410 transitions. Word has length 94 [2021-11-19 13:45:52,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:52,530 INFO L470 AbstractCegarLoop]: Abstraction has 1792 states and 2410 transitions. [2021-11-19 13:45:52,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 13:45:52,530 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2410 transitions. [2021-11-19 13:45:52,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 13:45:52,532 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:52,533 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:52,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:52,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:52,749 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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)] === [2021-11-19 13:45:52,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:52,749 INFO L85 PathProgramCache]: Analyzing trace with hash -854816666, now seen corresponding path program 1 times [2021-11-19 13:45:52,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:52,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826070742] [2021-11-19 13:45:52,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:52,750 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:52,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:52,751 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:52,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:45:53,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:53,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:53,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:54,137 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 13:45:54,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 13:45:54,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:54,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826070742] [2021-11-19 13:45:54,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826070742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:54,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:54,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:45:54,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722355317] [2021-11-19 13:45:54,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:54,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:45:54,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:45:54,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:54,477 INFO L87 Difference]: Start difference. First operand 1792 states and 2410 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:45:54,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:54,947 INFO L93 Difference]: Finished difference Result 4761 states and 6423 transitions. [2021-11-19 13:45:54,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:54,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2021-11-19 13:45:54,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:54,976 INFO L225 Difference]: With dead ends: 4761 [2021-11-19 13:45:54,976 INFO L226 Difference]: Without dead ends: 2990 [2021-11-19 13:45:54,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:54,988 INFO L933 BasicCegarLoop]: 3291 mSDtfsCounter, 2394 mSDsluCounter, 3259 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 6550 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:54,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2394 Valid, 6550 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:45:54,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2990 states. [2021-11-19 13:45:55,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2990 to 2978. [2021-11-19 13:45:55,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 1923 states have (on average 1.2137285491419656) internal successors, (2334), 2000 states have internal predecessors, (2334), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:45:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 4032 transitions. [2021-11-19 13:45:55,347 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 4032 transitions. Word has length 114 [2021-11-19 13:45:55,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:55,348 INFO L470 AbstractCegarLoop]: Abstraction has 2978 states and 4032 transitions. [2021-11-19 13:45:55,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 13:45:55,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 4032 transitions. [2021-11-19 13:45:55,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 13:45:55,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:55,352 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:55,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:55,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:55,575 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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)] === [2021-11-19 13:45:55,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:55,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1269656057, now seen corresponding path program 1 times [2021-11-19 13:45:55,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:55,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [35071865] [2021-11-19 13:45:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:55,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:55,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:55,579 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:55,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 13:45:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:56,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:45:56,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:57,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:57,305 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:45:57,305 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:57,306 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [35071865] [2021-11-19 13:45:57,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [35071865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:57,306 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:57,306 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:45:57,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919999603] [2021-11-19 13:45:57,306 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:57,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:45:57,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:57,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:45:57,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:45:57,308 INFO L87 Difference]: Start difference. First operand 2978 states and 4032 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:45:57,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:57,584 INFO L93 Difference]: Finished difference Result 2978 states and 4032 transitions. [2021-11-19 13:45:57,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:45:57,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 100 [2021-11-19 13:45:57,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:45:57,610 INFO L225 Difference]: With dead ends: 2978 [2021-11-19 13:45:57,610 INFO L226 Difference]: Without dead ends: 2976 [2021-11-19 13:45:57,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:45:57,615 INFO L933 BasicCegarLoop]: 2406 mSDtfsCounter, 2326 mSDsluCounter, 2404 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:45:57,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2328 Valid, 4810 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:45:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2021-11-19 13:45:57,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 2976. [2021-11-19 13:45:57,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2976 states, 1922 states have (on average 1.2133194588969822) internal successors, (2332), 1998 states have internal predecessors, (2332), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:45:57,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 4030 transitions. [2021-11-19 13:45:57,872 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 4030 transitions. Word has length 100 [2021-11-19 13:45:57,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:45:57,873 INFO L470 AbstractCegarLoop]: Abstraction has 2976 states and 4030 transitions. [2021-11-19 13:45:57,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 13:45:57,873 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 4030 transitions. [2021-11-19 13:45:57,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 13:45:57,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:45:57,877 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:45:57,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:45:58,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:45:58,091 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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)] === [2021-11-19 13:45:58,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:45:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1559665515, now seen corresponding path program 1 times [2021-11-19 13:45:58,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:45:58,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062831024] [2021-11-19 13:45:58,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:45:58,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:45:58,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:45:58,094 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:45:58,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-19 13:45:59,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:45:59,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:45:59,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:45:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 13:45:59,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:45:59,607 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 13:45:59,607 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:45:59,608 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062831024] [2021-11-19 13:45:59,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062831024] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:45:59,608 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:45:59,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:45:59,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095445980] [2021-11-19 13:45:59,609 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:45:59,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:45:59,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:45:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:45:59,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:45:59,611 INFO L87 Difference]: Start difference. First operand 2976 states and 4030 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 13:45:59,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:45:59,994 INFO L93 Difference]: Finished difference Result 5927 states and 8026 transitions. [2021-11-19 13:45:59,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:45:59,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 120 [2021-11-19 13:45:59,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:00,018 INFO L225 Difference]: With dead ends: 5927 [2021-11-19 13:46:00,018 INFO L226 Difference]: Without dead ends: 2972 [2021-11-19 13:46:00,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:46:00,036 INFO L933 BasicCegarLoop]: 2402 mSDtfsCounter, 2388 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2388 SdHoareTripleChecker+Valid, 2402 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:00,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2388 Valid, 2402 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:46:00,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2972 states. [2021-11-19 13:46:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2972 to 2972. [2021-11-19 13:46:00,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 1919 states have (on average 1.2126107347576862) internal successors, (2327), 1994 states have internal predecessors, (2327), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:00,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4025 transitions. [2021-11-19 13:46:00,309 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4025 transitions. Word has length 120 [2021-11-19 13:46:00,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:00,309 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 4025 transitions. [2021-11-19 13:46:00,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-19 13:46:00,310 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4025 transitions. [2021-11-19 13:46:00,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 13:46:00,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:00,312 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:00,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:00,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:00,535 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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)] === [2021-11-19 13:46:00,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1020188700, now seen corresponding path program 1 times [2021-11-19 13:46:00,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:00,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99874378] [2021-11-19 13:46:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:00,537 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:00,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:00,537 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:00,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:46:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:01,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:01,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:01,854 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:01,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:02,143 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:02,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99874378] [2021-11-19 13:46:02,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99874378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:02,143 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:02,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:02,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746989498] [2021-11-19 13:46:02,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:02,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:02,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:02,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:02,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:02,145 INFO L87 Difference]: Start difference. First operand 2972 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:46:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:02,401 INFO L93 Difference]: Finished difference Result 2972 states and 4025 transitions. [2021-11-19 13:46:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:02,401 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 106 [2021-11-19 13:46:02,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:02,430 INFO L225 Difference]: With dead ends: 2972 [2021-11-19 13:46:02,430 INFO L226 Difference]: Without dead ends: 2970 [2021-11-19 13:46:02,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:02,434 INFO L933 BasicCegarLoop]: 2399 mSDtfsCounter, 2321 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:02,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2323 Valid, 4792 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:02,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-11-19 13:46:02,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2970. [2021-11-19 13:46:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 1918 states have (on average 1.2122002085505734) internal successors, (2325), 1992 states have internal predecessors, (2325), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4023 transitions. [2021-11-19 13:46:02,775 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4023 transitions. Word has length 106 [2021-11-19 13:46:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:02,776 INFO L470 AbstractCegarLoop]: Abstraction has 2970 states and 4023 transitions. [2021-11-19 13:46:02,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:46:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4023 transitions. [2021-11-19 13:46:02,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 13:46:02,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:02,778 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:02,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:02,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:02,999 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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)] === [2021-11-19 13:46:03,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:03,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1148944287, now seen corresponding path program 1 times [2021-11-19 13:46:03,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:03,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [32251177] [2021-11-19 13:46:03,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:03,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:03,002 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:03,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 13:46:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:03,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:03,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:04,281 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:04,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:04,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:04,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [32251177] [2021-11-19 13:46:04,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [32251177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:04,590 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:04,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:04,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527728480] [2021-11-19 13:46:04,591 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:04,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:04,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:04,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:04,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:04,592 INFO L87 Difference]: Start difference. First operand 2970 states and 4023 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:46:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:04,872 INFO L93 Difference]: Finished difference Result 2970 states and 4023 transitions. [2021-11-19 13:46:04,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:04,873 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108 [2021-11-19 13:46:04,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:04,916 INFO L225 Difference]: With dead ends: 2970 [2021-11-19 13:46:04,917 INFO L226 Difference]: Without dead ends: 2968 [2021-11-19 13:46:04,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:04,920 INFO L933 BasicCegarLoop]: 2397 mSDtfsCounter, 2306 mSDsluCounter, 4790 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 7187 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:04,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 7187 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-11-19 13:46:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2968. [2021-11-19 13:46:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 1917 states have (on average 1.2117892540427753) internal successors, (2323), 1990 states have internal predecessors, (2323), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4021 transitions. [2021-11-19 13:46:05,251 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4021 transitions. Word has length 108 [2021-11-19 13:46:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:05,252 INFO L470 AbstractCegarLoop]: Abstraction has 2968 states and 4021 transitions. [2021-11-19 13:46:05,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 13:46:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4021 transitions. [2021-11-19 13:46:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 13:46:05,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:05,255 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:05,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:05,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:05,467 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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)] === [2021-11-19 13:46:05,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:05,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1073674133, now seen corresponding path program 1 times [2021-11-19 13:46:05,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:05,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660127689] [2021-11-19 13:46:05,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:05,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:05,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:05,470 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:05,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 13:46:06,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:06,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:06,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:06,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:07,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:07,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660127689] [2021-11-19 13:46:07,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660127689] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:07,208 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:07,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:07,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074231087] [2021-11-19 13:46:07,208 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:07,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:07,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:07,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:07,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:07,209 INFO L87 Difference]: Start difference. First operand 2968 states and 4021 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:46:07,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:07,503 INFO L93 Difference]: Finished difference Result 2968 states and 4021 transitions. [2021-11-19 13:46:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 114 [2021-11-19 13:46:07,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:07,517 INFO L225 Difference]: With dead ends: 2968 [2021-11-19 13:46:07,517 INFO L226 Difference]: Without dead ends: 2966 [2021-11-19 13:46:07,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:07,520 INFO L933 BasicCegarLoop]: 2395 mSDtfsCounter, 2298 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2300 SdHoareTripleChecker+Valid, 7181 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:07,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2300 Valid, 7181 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:07,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-11-19 13:46:07,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2966. [2021-11-19 13:46:07,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1916 states have (on average 1.2113778705636744) internal successors, (2321), 1988 states have internal predecessors, (2321), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:07,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4019 transitions. [2021-11-19 13:46:07,819 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4019 transitions. Word has length 114 [2021-11-19 13:46:07,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:07,819 INFO L470 AbstractCegarLoop]: Abstraction has 2966 states and 4019 transitions. [2021-11-19 13:46:07,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:46:07,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4019 transitions. [2021-11-19 13:46:07,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 13:46:07,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:07,822 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:07,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:08,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:08,035 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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)] === [2021-11-19 13:46:08,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:08,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1787018504, now seen corresponding path program 1 times [2021-11-19 13:46:08,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:08,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1770998279] [2021-11-19 13:46:08,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:08,037 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:08,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:08,038 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:08,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 13:46:08,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:08,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:08,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:09,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:09,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:09,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1770998279] [2021-11-19 13:46:09,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1770998279] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:09,939 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:09,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:09,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850981049] [2021-11-19 13:46:09,940 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:09,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:09,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:09,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:09,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:09,941 INFO L87 Difference]: Start difference. First operand 2966 states and 4019 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:46:10,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:10,179 INFO L93 Difference]: Finished difference Result 2966 states and 4019 transitions. [2021-11-19 13:46:10,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:10,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 120 [2021-11-19 13:46:10,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:10,194 INFO L225 Difference]: With dead ends: 2966 [2021-11-19 13:46:10,195 INFO L226 Difference]: Without dead ends: 2964 [2021-11-19 13:46:10,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:10,198 INFO L933 BasicCegarLoop]: 2393 mSDtfsCounter, 2290 mSDsluCounter, 4782 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2292 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:10,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2292 Valid, 7175 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2021-11-19 13:46:10,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2964. [2021-11-19 13:46:10,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2964 states, 1915 states have (on average 1.2109660574412533) internal successors, (2319), 1986 states have internal predecessors, (2319), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2964 states to 2964 states and 4017 transitions. [2021-11-19 13:46:10,566 INFO L78 Accepts]: Start accepts. Automaton has 2964 states and 4017 transitions. Word has length 120 [2021-11-19 13:46:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:10,567 INFO L470 AbstractCegarLoop]: Abstraction has 2964 states and 4017 transitions. [2021-11-19 13:46:10,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:46:10,567 INFO L276 IsEmpty]: Start isEmpty. Operand 2964 states and 4017 transitions. [2021-11-19 13:46:10,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 13:46:10,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:10,570 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:10,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:10,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:10,797 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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)] === [2021-11-19 13:46:10,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:10,798 INFO L85 PathProgramCache]: Analyzing trace with hash 893804278, now seen corresponding path program 1 times [2021-11-19 13:46:10,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:10,799 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720902340] [2021-11-19 13:46:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:10,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:10,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:10,800 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:10,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 13:46:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:11,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 878 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:11,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:12,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:12,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:12,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720902340] [2021-11-19 13:46:12,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720902340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:12,525 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:12,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:12,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397693582] [2021-11-19 13:46:12,526 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:12,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:12,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:12,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:12,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:12,527 INFO L87 Difference]: Start difference. First operand 2964 states and 4017 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:46:12,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:12,793 INFO L93 Difference]: Finished difference Result 2964 states and 4017 transitions. [2021-11-19 13:46:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:12,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 126 [2021-11-19 13:46:12,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:12,806 INFO L225 Difference]: With dead ends: 2964 [2021-11-19 13:46:12,806 INFO L226 Difference]: Without dead ends: 2962 [2021-11-19 13:46:12,807 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:12,808 INFO L933 BasicCegarLoop]: 2391 mSDtfsCounter, 2282 mSDsluCounter, 4778 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2284 SdHoareTripleChecker+Valid, 7169 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:12,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2284 Valid, 7169 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2021-11-19 13:46:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 2962. [2021-11-19 13:46:13,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 1914 states have (on average 1.21055381400209) internal successors, (2317), 1984 states have internal predecessors, (2317), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:13,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 4015 transitions. [2021-11-19 13:46:13,130 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 4015 transitions. Word has length 126 [2021-11-19 13:46:13,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:13,131 INFO L470 AbstractCegarLoop]: Abstraction has 2962 states and 4015 transitions. [2021-11-19 13:46:13,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 13:46:13,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 4015 transitions. [2021-11-19 13:46:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 13:46:13,140 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:13,140 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:13,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:13,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:13,367 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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)] === [2021-11-19 13:46:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:13,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1173658340, now seen corresponding path program 1 times [2021-11-19 13:46:13,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:13,369 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727160357] [2021-11-19 13:46:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:13,369 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:13,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:13,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:13,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 13:46:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:14,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:14,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:14,986 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:14,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:15,339 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:15,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727160357] [2021-11-19 13:46:15,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727160357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:15,339 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:15,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:15,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493484183] [2021-11-19 13:46:15,340 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:15,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:15,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:15,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:15,341 INFO L87 Difference]: Start difference. First operand 2962 states and 4015 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 13:46:15,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:15,583 INFO L93 Difference]: Finished difference Result 2962 states and 4015 transitions. [2021-11-19 13:46:15,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:15,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 132 [2021-11-19 13:46:15,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:15,595 INFO L225 Difference]: With dead ends: 2962 [2021-11-19 13:46:15,595 INFO L226 Difference]: Without dead ends: 2960 [2021-11-19 13:46:15,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:15,599 INFO L933 BasicCegarLoop]: 2389 mSDtfsCounter, 2274 mSDsluCounter, 4774 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 7163 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:15,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2276 Valid, 7163 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2021-11-19 13:46:15,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2960. [2021-11-19 13:46:15,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 1913 states have (on average 1.210141139571354) internal successors, (2315), 1982 states have internal predecessors, (2315), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 4013 transitions. [2021-11-19 13:46:16,003 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 4013 transitions. Word has length 132 [2021-11-19 13:46:16,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:16,004 INFO L470 AbstractCegarLoop]: Abstraction has 2960 states and 4013 transitions. [2021-11-19 13:46:16,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 13:46:16,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 4013 transitions. [2021-11-19 13:46:16,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-19 13:46:16,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:16,008 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:16,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:16,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:16,231 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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)] === [2021-11-19 13:46:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:16,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1744559868, now seen corresponding path program 1 times [2021-11-19 13:46:16,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:16,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9238211] [2021-11-19 13:46:16,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:16,234 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:16,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:16,235 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:16,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 13:46:17,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:17,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:17,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:17,704 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:17,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:18,066 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:18,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:18,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9238211] [2021-11-19 13:46:18,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9238211] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:18,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:18,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:18,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125460257] [2021-11-19 13:46:18,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:18,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:18,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:18,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:18,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:18,068 INFO L87 Difference]: Start difference. First operand 2960 states and 4013 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:46:18,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:18,298 INFO L93 Difference]: Finished difference Result 2960 states and 4013 transitions. [2021-11-19 13:46:18,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:18,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 138 [2021-11-19 13:46:18,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:18,334 INFO L225 Difference]: With dead ends: 2960 [2021-11-19 13:46:18,334 INFO L226 Difference]: Without dead ends: 2958 [2021-11-19 13:46:18,335 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:18,336 INFO L933 BasicCegarLoop]: 2387 mSDtfsCounter, 2266 mSDsluCounter, 4770 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:18,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2268 Valid, 7157 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:18,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2021-11-19 13:46:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2958. [2021-11-19 13:46:18,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2958 states, 1912 states have (on average 1.2097280334728033) internal successors, (2313), 1980 states have internal predecessors, (2313), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:18,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2958 states to 2958 states and 4011 transitions. [2021-11-19 13:46:18,669 INFO L78 Accepts]: Start accepts. Automaton has 2958 states and 4011 transitions. Word has length 138 [2021-11-19 13:46:18,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:18,671 INFO L470 AbstractCegarLoop]: Abstraction has 2958 states and 4011 transitions. [2021-11-19 13:46:18,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 13:46:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2958 states and 4011 transitions. [2021-11-19 13:46:18,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 13:46:18,674 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:18,674 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:18,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:18,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:18,896 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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)] === [2021-11-19 13:46:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:18,896 INFO L85 PathProgramCache]: Analyzing trace with hash 487241016, now seen corresponding path program 1 times [2021-11-19 13:46:18,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:18,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611614603] [2021-11-19 13:46:18,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:18,898 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:18,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:18,899 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:18,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 13:46:19,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:19,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:19,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:20,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:21,156 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:21,156 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:21,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611614603] [2021-11-19 13:46:21,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611614603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:21,157 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:21,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 13:46:21,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253267248] [2021-11-19 13:46:21,157 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:21,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:46:21,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:21,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:46:21,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:21,159 INFO L87 Difference]: Start difference. First operand 2958 states and 4011 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:46:22,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:22,995 INFO L93 Difference]: Finished difference Result 2958 states and 4011 transitions. [2021-11-19 13:46:22,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:22,996 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-19 13:46:22,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:23,008 INFO L225 Difference]: With dead ends: 2958 [2021-11-19 13:46:23,008 INFO L226 Difference]: Without dead ends: 2956 [2021-11-19 13:46:23,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:46:23,012 INFO L933 BasicCegarLoop]: 2385 mSDtfsCounter, 3612 mSDsluCounter, 4766 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 992 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3614 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 992 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:23,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3614 Valid, 7151 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [992 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-19 13:46:23,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2956 states. [2021-11-19 13:46:23,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2956 to 2956. [2021-11-19 13:46:23,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 1911 states have (on average 1.2093144950287806) internal successors, (2311), 1978 states have internal predecessors, (2311), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:23,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 4009 transitions. [2021-11-19 13:46:23,483 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 4009 transitions. Word has length 144 [2021-11-19 13:46:23,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:23,484 INFO L470 AbstractCegarLoop]: Abstraction has 2956 states and 4009 transitions. [2021-11-19 13:46:23,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:46:23,484 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 4009 transitions. [2021-11-19 13:46:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 13:46:23,488 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:23,488 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:23,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:23,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:23,704 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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)] === [2021-11-19 13:46:23,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:23,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1497997390, now seen corresponding path program 1 times [2021-11-19 13:46:23,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:23,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2063364283] [2021-11-19 13:46:23,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:23,706 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:23,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:23,707 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:23,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 13:46:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:24,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 914 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:24,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:25,581 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:25,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:26,029 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:26,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2063364283] [2021-11-19 13:46:26,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2063364283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:26,029 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:26,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:26,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092002583] [2021-11-19 13:46:26,029 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:26,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:26,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:26,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:26,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:26,031 INFO L87 Difference]: Start difference. First operand 2956 states and 4009 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:46:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:26,311 INFO L93 Difference]: Finished difference Result 2956 states and 4009 transitions. [2021-11-19 13:46:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 150 [2021-11-19 13:46:26,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:26,325 INFO L225 Difference]: With dead ends: 2956 [2021-11-19 13:46:26,325 INFO L226 Difference]: Without dead ends: 2954 [2021-11-19 13:46:26,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:26,328 INFO L933 BasicCegarLoop]: 2383 mSDtfsCounter, 2253 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2255 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:26,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2255 Valid, 4764 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2021-11-19 13:46:26,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2954. [2021-11-19 13:46:26,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 1910 states have (on average 1.2089005235602095) internal successors, (2309), 1976 states have internal predecessors, (2309), 850 states have call successors, (850), 185 states have call predecessors, (850), 184 states have return successors, (848), 833 states have call predecessors, (848), 848 states have call successors, (848) [2021-11-19 13:46:26,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 4007 transitions. [2021-11-19 13:46:26,759 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 4007 transitions. Word has length 150 [2021-11-19 13:46:26,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:26,760 INFO L470 AbstractCegarLoop]: Abstraction has 2954 states and 4007 transitions. [2021-11-19 13:46:26,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 13:46:26,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 4007 transitions. [2021-11-19 13:46:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-19 13:46:26,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:26,764 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:26,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:26,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:26,987 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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)] === [2021-11-19 13:46:26,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:26,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1404633559, now seen corresponding path program 1 times [2021-11-19 13:46:26,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:26,989 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [212975823] [2021-11-19 13:46:26,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:26,990 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:26,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:26,991 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:27,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 13:46:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:28,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1111 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:46:28,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:28,869 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-19 13:46:28,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:46:29,627 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:29,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [212975823] [2021-11-19 13:46:29,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [212975823] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:29,627 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:29,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 17 [2021-11-19 13:46:29,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618858080] [2021-11-19 13:46:29,627 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:29,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-19 13:46:29,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-19 13:46:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:46:29,629 INFO L87 Difference]: Start difference. First operand 2954 states and 4007 transitions. Second operand has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-19 13:46:33,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:33,090 INFO L93 Difference]: Finished difference Result 7243 states and 9984 transitions. [2021-11-19 13:46:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-19 13:46:33,090 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 177 [2021-11-19 13:46:33,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:33,110 INFO L225 Difference]: With dead ends: 7243 [2021-11-19 13:46:33,110 INFO L226 Difference]: Without dead ends: 4309 [2021-11-19 13:46:33,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2021-11-19 13:46:33,131 INFO L933 BasicCegarLoop]: 3154 mSDtfsCounter, 1725 mSDsluCounter, 35150 mSDsCounter, 0 mSdLazyCounter, 741 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1864 SdHoareTripleChecker+Valid, 38304 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:33,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1864 Valid, 38304 Invalid, 1578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [837 Valid, 741 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 13:46:33,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4309 states. [2021-11-19 13:46:33,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4309 to 2969. [2021-11-19 13:46:33,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2969 states, 1921 states have (on average 1.2077043206663196) internal successors, (2320), 1987 states have internal predecessors, (2320), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:33,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2969 states to 2969 states and 4026 transitions. [2021-11-19 13:46:33,634 INFO L78 Accepts]: Start accepts. Automaton has 2969 states and 4026 transitions. Word has length 177 [2021-11-19 13:46:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:33,635 INFO L470 AbstractCegarLoop]: Abstraction has 2969 states and 4026 transitions. [2021-11-19 13:46:33,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 5.0625) internal successors, (81), 16 states have internal predecessors, (81), 7 states have call successors, (29), 2 states have call predecessors, (29), 5 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2021-11-19 13:46:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 2969 states and 4026 transitions. [2021-11-19 13:46:33,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 13:46:33,638 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:33,638 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:33,675 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:33,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:33,855 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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)] === [2021-11-19 13:46:33,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:33,855 INFO L85 PathProgramCache]: Analyzing trace with hash 198254540, now seen corresponding path program 1 times [2021-11-19 13:46:33,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:33,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825275196] [2021-11-19 13:46:33,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:33,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:33,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:33,857 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:33,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 13:46:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:34,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:34,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:35,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:35,715 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:35,715 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:35,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825275196] [2021-11-19 13:46:35,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825275196] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:35,715 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:35,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:35,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006285647] [2021-11-19 13:46:35,716 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:35,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:35,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:35,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:35,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:35,717 INFO L87 Difference]: Start difference. First operand 2969 states and 4026 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:46:35,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:35,996 INFO L93 Difference]: Finished difference Result 2969 states and 4026 transitions. [2021-11-19 13:46:35,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:35,996 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 156 [2021-11-19 13:46:35,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:36,007 INFO L225 Difference]: With dead ends: 2969 [2021-11-19 13:46:36,007 INFO L226 Difference]: Without dead ends: 2967 [2021-11-19 13:46:36,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:36,010 INFO L933 BasicCegarLoop]: 2381 mSDtfsCounter, 2242 mSDsluCounter, 4758 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 7139 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:36,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 7139 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:36,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2021-11-19 13:46:36,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2967. [2021-11-19 13:46:36,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 1920 states have (on average 1.2072916666666667) internal successors, (2318), 1985 states have internal predecessors, (2318), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 4024 transitions. [2021-11-19 13:46:36,436 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 4024 transitions. Word has length 156 [2021-11-19 13:46:36,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:36,437 INFO L470 AbstractCegarLoop]: Abstraction has 2967 states and 4024 transitions. [2021-11-19 13:46:36,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 13:46:36,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 4024 transitions. [2021-11-19 13:46:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-19 13:46:36,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:36,440 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:36,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:36,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:36,664 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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)] === [2021-11-19 13:46:36,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:36,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1978198036, now seen corresponding path program 1 times [2021-11-19 13:46:36,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:36,666 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355006026] [2021-11-19 13:46:36,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:36,666 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:36,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:36,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:36,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 13:46:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:37,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 13:46:37,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:38,606 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-11-19 13:46:38,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-11-19 13:46:39,889 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:39,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355006026] [2021-11-19 13:46:39,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355006026] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:39,890 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:39,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 27 [2021-11-19 13:46:39,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593804782] [2021-11-19 13:46:39,890 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:39,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-19 13:46:39,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:39,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-19 13:46:39,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 13:46:39,892 INFO L87 Difference]: Start difference. First operand 2967 states and 4024 transitions. Second operand has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2021-11-19 13:46:49,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:49,802 INFO L93 Difference]: Finished difference Result 8034 states and 11130 transitions. [2021-11-19 13:46:49,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-19 13:46:49,803 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) Word has length 183 [2021-11-19 13:46:49,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:49,818 INFO L225 Difference]: With dead ends: 8034 [2021-11-19 13:46:49,818 INFO L226 Difference]: Without dead ends: 5086 [2021-11-19 13:46:49,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 711 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=719, Invalid=3441, Unknown=0, NotChecked=0, Total=4160 [2021-11-19 13:46:49,837 INFO L933 BasicCegarLoop]: 3599 mSDtfsCounter, 3947 mSDsluCounter, 56241 mSDsCounter, 0 mSdLazyCounter, 2427 mSolverCounterSat, 2420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 59840 SdHoareTripleChecker+Invalid, 4847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2420 IncrementalHoareTripleChecker+Valid, 2427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:49,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4086 Valid, 59840 Invalid, 4847 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2420 Valid, 2427 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-19 13:46:49,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5086 states. [2021-11-19 13:46:50,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5086 to 2972. [2021-11-19 13:46:50,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 1925 states have (on average 1.2077922077922079) internal successors, (2325), 1990 states have internal predecessors, (2325), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:50,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4031 transitions. [2021-11-19 13:46:50,414 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4031 transitions. Word has length 183 [2021-11-19 13:46:50,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:50,415 INFO L470 AbstractCegarLoop]: Abstraction has 2972 states and 4031 transitions. [2021-11-19 13:46:50,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 3.92) internal successors, (98), 25 states have internal predecessors, (98), 12 states have call successors, (36), 2 states have call predecessors, (36), 5 states have return successors, (31), 12 states have call predecessors, (31), 12 states have call successors, (31) [2021-11-19 13:46:50,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4031 transitions. [2021-11-19 13:46:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 13:46:50,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:50,418 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:50,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:50,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:50,634 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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)] === [2021-11-19 13:46:50,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:50,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1376849069, now seen corresponding path program 1 times [2021-11-19 13:46:50,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:50,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516384573] [2021-11-19 13:46:50,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:50,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:50,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:50,637 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:50,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 13:46:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:51,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 932 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:51,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:52,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:52,635 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:52,635 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:52,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516384573] [2021-11-19 13:46:52,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516384573] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:52,636 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:52,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:52,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250128700] [2021-11-19 13:46:52,636 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:52,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:52,637 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:52,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:52,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:52,638 INFO L87 Difference]: Start difference. First operand 2972 states and 4031 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:46:52,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:52,994 INFO L93 Difference]: Finished difference Result 2972 states and 4031 transitions. [2021-11-19 13:46:52,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 162 [2021-11-19 13:46:52,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:53,002 INFO L225 Difference]: With dead ends: 2972 [2021-11-19 13:46:53,003 INFO L226 Difference]: Without dead ends: 2970 [2021-11-19 13:46:53,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:53,004 INFO L933 BasicCegarLoop]: 2379 mSDtfsCounter, 2234 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:53,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 7133 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:53,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2970 states. [2021-11-19 13:46:53,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2970 to 2970. [2021-11-19 13:46:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2970 states, 1924 states have (on average 1.2073804573804574) internal successors, (2323), 1988 states have internal predecessors, (2323), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4029 transitions. [2021-11-19 13:46:53,401 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4029 transitions. Word has length 162 [2021-11-19 13:46:53,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:53,402 INFO L470 AbstractCegarLoop]: Abstraction has 2970 states and 4029 transitions. [2021-11-19 13:46:53,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 13:46:53,402 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4029 transitions. [2021-11-19 13:46:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 13:46:53,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:53,405 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:53,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:53,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:53,620 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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)] === [2021-11-19 13:46:53,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:53,620 INFO L85 PathProgramCache]: Analyzing trace with hash 292960699, now seen corresponding path program 1 times [2021-11-19 13:46:53,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:53,621 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91827633] [2021-11-19 13:46:53,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:53,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:53,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:53,622 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:53,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-19 13:46:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:54,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:54,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:55,137 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:55,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:55,527 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:55,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91827633] [2021-11-19 13:46:55,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91827633] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:55,528 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:55,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:55,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937417063] [2021-11-19 13:46:55,528 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:55,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:55,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:55,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:55,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:55,530 INFO L87 Difference]: Start difference. First operand 2970 states and 4029 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:46:55,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:55,875 INFO L93 Difference]: Finished difference Result 2970 states and 4029 transitions. [2021-11-19 13:46:55,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:55,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 168 [2021-11-19 13:46:55,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:55,884 INFO L225 Difference]: With dead ends: 2970 [2021-11-19 13:46:55,885 INFO L226 Difference]: Without dead ends: 2968 [2021-11-19 13:46:55,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:55,888 INFO L933 BasicCegarLoop]: 2377 mSDtfsCounter, 2226 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 7127 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:55,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2228 Valid, 7127 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:55,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2021-11-19 13:46:56,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2968. [2021-11-19 13:46:56,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 1923 states have (on average 1.2069682787311493) internal successors, (2321), 1986 states have internal predecessors, (2321), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 4027 transitions. [2021-11-19 13:46:56,287 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 4027 transitions. Word has length 168 [2021-11-19 13:46:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:56,288 INFO L470 AbstractCegarLoop]: Abstraction has 2968 states and 4027 transitions. [2021-11-19 13:46:56,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:46:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 4027 transitions. [2021-11-19 13:46:56,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 13:46:56,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:56,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:56,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:56,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:56,504 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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)] === [2021-11-19 13:46:56,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:56,504 INFO L85 PathProgramCache]: Analyzing trace with hash 888255373, now seen corresponding path program 1 times [2021-11-19 13:46:56,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:56,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525154265] [2021-11-19 13:46:56,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:56,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:56,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:56,506 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:56,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 13:46:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:46:57,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:46:57,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:46:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:46:58,431 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:46:58,431 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:46:58,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1525154265] [2021-11-19 13:46:58,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1525154265] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:46:58,432 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:46:58,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:46:58,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927388629] [2021-11-19 13:46:58,432 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:46:58,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:46:58,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:46:58,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:46:58,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:46:58,433 INFO L87 Difference]: Start difference. First operand 2968 states and 4027 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:46:58,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:46:58,782 INFO L93 Difference]: Finished difference Result 2968 states and 4027 transitions. [2021-11-19 13:46:58,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:46:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 174 [2021-11-19 13:46:58,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:46:58,788 INFO L225 Difference]: With dead ends: 2968 [2021-11-19 13:46:58,788 INFO L226 Difference]: Without dead ends: 2966 [2021-11-19 13:46:58,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:46:58,790 INFO L933 BasicCegarLoop]: 2375 mSDtfsCounter, 2221 mSDsluCounter, 2373 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:46:58,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2223 Valid, 4748 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:46:58,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2021-11-19 13:46:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2966. [2021-11-19 13:46:59,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1922 states have (on average 1.2065556711758585) internal successors, (2319), 1984 states have internal predecessors, (2319), 854 states have call successors, (854), 185 states have call predecessors, (854), 184 states have return successors, (852), 837 states have call predecessors, (852), 852 states have call successors, (852) [2021-11-19 13:46:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 4025 transitions. [2021-11-19 13:46:59,209 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 4025 transitions. Word has length 174 [2021-11-19 13:46:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:46:59,209 INFO L470 AbstractCegarLoop]: Abstraction has 2966 states and 4025 transitions. [2021-11-19 13:46:59,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 13:46:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 4025 transitions. [2021-11-19 13:46:59,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 13:46:59,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:46:59,211 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:46:59,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 13:46:59,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:46:59,412 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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)] === [2021-11-19 13:46:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:46:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash 902084397, now seen corresponding path program 1 times [2021-11-19 13:46:59,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:46:59,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567925646] [2021-11-19 13:46:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:46:59,414 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:46:59,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:46:59,414 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:46:59,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 13:47:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:00,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:00,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:00,972 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:47:00,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:01,394 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 13:47:01,394 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:01,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567925646] [2021-11-19 13:47:01,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567925646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:01,394 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:01,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 13:47:01,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448032335] [2021-11-19 13:47:01,395 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:01,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:47:01,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:47:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:47:01,396 INFO L87 Difference]: Start difference. First operand 2966 states and 4025 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:47:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:01,738 INFO L93 Difference]: Finished difference Result 2966 states and 4025 transitions. [2021-11-19 13:47:01,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:47:01,738 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 180 [2021-11-19 13:47:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:01,746 INFO L225 Difference]: With dead ends: 2966 [2021-11-19 13:47:01,746 INFO L226 Difference]: Without dead ends: 2794 [2021-11-19 13:47:01,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:47:01,748 INFO L933 BasicCegarLoop]: 2374 mSDtfsCounter, 2209 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 4748 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:01,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2209 Valid, 4748 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:47:01,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2794 states. [2021-11-19 13:47:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2794 to 2794. [2021-11-19 13:47:02,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2794 states, 1819 states have (on average 1.2166025288620121) internal successors, (2213), 1879 states have internal predecessors, (2213), 805 states have call successors, (805), 165 states have call predecessors, (805), 165 states have return successors, (805), 790 states have call predecessors, (805), 805 states have call successors, (805) [2021-11-19 13:47:02,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2794 states to 2794 states and 3823 transitions. [2021-11-19 13:47:02,178 INFO L78 Accepts]: Start accepts. Automaton has 2794 states and 3823 transitions. Word has length 180 [2021-11-19 13:47:02,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:02,178 INFO L470 AbstractCegarLoop]: Abstraction has 2794 states and 3823 transitions. [2021-11-19 13:47:02,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 13:47:02,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2794 states and 3823 transitions. [2021-11-19 13:47:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-11-19 13:47:02,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:02,181 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 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] [2021-11-19 13:47:02,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:02,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:02,404 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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)] === [2021-11-19 13:47:02,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash -527454335, now seen corresponding path program 1 times [2021-11-19 13:47:02,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:02,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453309837] [2021-11-19 13:47:02,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:02,406 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:02,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:02,407 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:02,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 13:47:03,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:03,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1360 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:47:03,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:04,261 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2021-11-19 13:47:04,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:04,764 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-11-19 13:47:04,765 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:04,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453309837] [2021-11-19 13:47:04,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453309837] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:04,765 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:04,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 13:47:04,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483232473] [2021-11-19 13:47:04,766 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:04,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:47:04,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:47:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:47:04,767 INFO L87 Difference]: Start difference. First operand 2794 states and 3823 transitions. Second operand has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:47:07,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:47:07,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:07,905 INFO L93 Difference]: Finished difference Result 5669 states and 7759 transitions. [2021-11-19 13:47:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:47:07,905 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 224 [2021-11-19 13:47:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:07,914 INFO L225 Difference]: With dead ends: 5669 [2021-11-19 13:47:07,914 INFO L226 Difference]: Without dead ends: 2894 [2021-11-19 13:47:07,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:47:07,923 INFO L933 BasicCegarLoop]: 2253 mSDtfsCounter, 163 mSDsluCounter, 11081 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 13334 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:07,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 13334 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 43 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-19 13:47:07,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-11-19 13:47:08,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2797. [2021-11-19 13:47:08,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1822 states have (on average 1.2162458836443468) internal successors, (2216), 1882 states have internal predecessors, (2216), 805 states have call successors, (805), 165 states have call predecessors, (805), 165 states have return successors, (805), 790 states have call predecessors, (805), 805 states have call successors, (805) [2021-11-19 13:47:08,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3826 transitions. [2021-11-19 13:47:08,334 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3826 transitions. Word has length 224 [2021-11-19 13:47:08,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:08,335 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3826 transitions. [2021-11-19 13:47:08,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.625) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:47:08,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3826 transitions. [2021-11-19 13:47:08,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-19 13:47:08,337 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:08,337 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-19 13:47:08,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:08,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:08,538 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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)] === [2021-11-19 13:47:08,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:08,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1045579706, now seen corresponding path program 1 times [2021-11-19 13:47:08,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:08,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566643563] [2021-11-19 13:47:08,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:08,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:08,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:08,541 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:08,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 13:47:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:09,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 1407 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 13:47:09,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:10,523 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2021-11-19 13:47:10,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:11,219 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2021-11-19 13:47:11,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:11,219 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566643563] [2021-11-19 13:47:11,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566643563] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:11,220 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:11,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 13:47:11,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111325842] [2021-11-19 13:47:11,220 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:11,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:47:11,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:11,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:47:11,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:47:11,221 INFO L87 Difference]: Start difference. First operand 2797 states and 3826 transitions. Second operand has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:47:11,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:11,808 INFO L93 Difference]: Finished difference Result 5644 states and 7724 transitions. [2021-11-19 13:47:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:47:11,809 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 245 [2021-11-19 13:47:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:11,820 INFO L225 Difference]: With dead ends: 5644 [2021-11-19 13:47:11,820 INFO L226 Difference]: Without dead ends: 2866 [2021-11-19 13:47:11,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:47:11,829 INFO L933 BasicCegarLoop]: 2252 mSDtfsCounter, 52 mSDsluCounter, 13371 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 15623 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:11,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 15623 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:47:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-11-19 13:47:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2802. [2021-11-19 13:47:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2802 states, 1826 states have (on average 1.2157721796276013) internal successors, (2220), 1886 states have internal predecessors, (2220), 805 states have call successors, (805), 165 states have call predecessors, (805), 166 states have return successors, (808), 791 states have call predecessors, (808), 805 states have call successors, (808) [2021-11-19 13:47:12,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2802 states to 2802 states and 3833 transitions. [2021-11-19 13:47:12,218 INFO L78 Accepts]: Start accepts. Automaton has 2802 states and 3833 transitions. Word has length 245 [2021-11-19 13:47:12,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:12,218 INFO L470 AbstractCegarLoop]: Abstraction has 2802 states and 3833 transitions. [2021-11-19 13:47:12,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.5) internal successors, (125), 8 states have internal predecessors, (125), 2 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 13:47:12,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2802 states and 3833 transitions. [2021-11-19 13:47:12,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-19 13:47:12,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:12,221 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:47:12,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Ended with exit code 0 [2021-11-19 13:47:12,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:12,444 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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)] === [2021-11-19 13:47:12,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:12,444 INFO L85 PathProgramCache]: Analyzing trace with hash -311259912, now seen corresponding path program 1 times [2021-11-19 13:47:12,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:12,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671579808] [2021-11-19 13:47:12,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:12,446 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:12,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:12,446 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:12,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 13:47:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:13,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:47:13,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:14,379 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-19 13:47:14,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-19 13:47:14,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:14,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [671579808] [2021-11-19 13:47:14,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [671579808] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:14,848 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:47:14,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:47:14,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480925534] [2021-11-19 13:47:14,848 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:14,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:47:14,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:14,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:47:14,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:47:14,849 INFO L87 Difference]: Start difference. First operand 2802 states and 3833 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:47:15,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:15,264 INFO L93 Difference]: Finished difference Result 5589 states and 7646 transitions. [2021-11-19 13:47:15,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:47:15,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 261 [2021-11-19 13:47:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:15,277 INFO L225 Difference]: With dead ends: 5589 [2021-11-19 13:47:15,278 INFO L226 Difference]: Without dead ends: 2806 [2021-11-19 13:47:15,286 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:47:15,287 INFO L933 BasicCegarLoop]: 2172 mSDtfsCounter, 4 mSDsluCounter, 4338 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6510 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:15,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 6510 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:47:15,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2806 states. [2021-11-19 13:47:15,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2806 to 2806. [2021-11-19 13:47:15,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 1830 states have (on average 1.2153005464480875) internal successors, (2224), 1890 states have internal predecessors, (2224), 805 states have call successors, (805), 165 states have call predecessors, (805), 166 states have return successors, (808), 791 states have call predecessors, (808), 805 states have call successors, (808) [2021-11-19 13:47:15,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3837 transitions. [2021-11-19 13:47:15,714 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3837 transitions. Word has length 261 [2021-11-19 13:47:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:15,714 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3837 transitions. [2021-11-19 13:47:15,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 13:47:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3837 transitions. [2021-11-19 13:47:15,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-19 13:47:15,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:15,718 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 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] [2021-11-19 13:47:15,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:15,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:15,918 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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)] === [2021-11-19 13:47:15,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:15,919 INFO L85 PathProgramCache]: Analyzing trace with hash -551727112, now seen corresponding path program 1 times [2021-11-19 13:47:15,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:15,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060326464] [2021-11-19 13:47:15,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:15,920 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:15,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:15,921 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:15,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 13:47:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:17,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:17,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:18,043 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-19 13:47:18,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:18,574 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-19 13:47:18,574 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:18,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060326464] [2021-11-19 13:47:18,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060326464] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:18,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [78576157] [2021-11-19 13:47:18,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:18,574 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:47:18,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:47:18,576 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:47:18,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2021-11-19 13:47:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:20,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:21,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:21,430 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-19 13:47:21,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-11-19 13:47:21,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [78576157] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:21,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996826774] [2021-11-19 13:47:21,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:21,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:47:21,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:47:21,918 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:47:21,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-19 13:47:22,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:22,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1467 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:47:22,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:23,297 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 389 trivial. 0 not checked. [2021-11-19 13:47:23,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:23,763 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-11-19 13:47:23,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996826774] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:23,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:47:23,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-19 13:47:23,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534514189] [2021-11-19 13:47:23,764 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:23,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:47:23,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:23,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:47:23,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:47:23,765 INFO L87 Difference]: Start difference. First operand 2806 states and 3837 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:47:26,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:26,166 INFO L93 Difference]: Finished difference Result 7058 states and 9773 transitions. [2021-11-19 13:47:26,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:47:26,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 267 [2021-11-19 13:47:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:26,179 INFO L225 Difference]: With dead ends: 7058 [2021-11-19 13:47:26,179 INFO L226 Difference]: Without dead ends: 4271 [2021-11-19 13:47:26,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1596 GetRequests, 1588 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:47:26,188 INFO L933 BasicCegarLoop]: 2774 mSDtfsCounter, 778 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1034 SdHoareTripleChecker+Valid, 7659 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:26,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1034 Valid, 7659 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-19 13:47:26,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4271 states. [2021-11-19 13:47:26,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4271 to 2815. [2021-11-19 13:47:26,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 1837 states have (on average 1.215568862275449) internal successors, (2233), 1897 states have internal predecessors, (2233), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 793 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-19 13:47:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 3850 transitions. [2021-11-19 13:47:26,573 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 3850 transitions. Word has length 267 [2021-11-19 13:47:26,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:26,574 INFO L470 AbstractCegarLoop]: Abstraction has 2815 states and 3850 transitions. [2021-11-19 13:47:26,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-19 13:47:26,575 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 3850 transitions. [2021-11-19 13:47:26,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-19 13:47:26,577 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:26,578 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-19 13:47:26,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:26,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:27,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:27,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:47:27,200 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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)] === [2021-11-19 13:47:27,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:27,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1969258456, now seen corresponding path program 1 times [2021-11-19 13:47:27,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:27,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635920770] [2021-11-19 13:47:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:27,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:27,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:27,203 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:27,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 13:47:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:28,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:28,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:29,663 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2021-11-19 13:47:29,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:30,337 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-11-19 13:47:30,338 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:30,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635920770] [2021-11-19 13:47:30,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1635920770] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:30,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1556943717] [2021-11-19 13:47:30,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:30,338 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:47:30,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:47:30,339 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:47:30,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2021-11-19 13:47:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:32,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:32,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:33,464 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 84 proven. 5 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2021-11-19 13:47:33,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2021-11-19 13:47:34,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1556943717] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:34,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871453081] [2021-11-19 13:47:34,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:34,055 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:47:34,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:47:34,056 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:47:34,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-19 13:47:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:35,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 1605 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:47:35,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:35,696 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 510 trivial. 0 not checked. [2021-11-19 13:47:35,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:36,485 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 522 trivial. 0 not checked. [2021-11-19 13:47:36,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871453081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:36,485 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:47:36,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 18 [2021-11-19 13:47:36,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960666912] [2021-11-19 13:47:36,486 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:36,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 13:47:36,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:36,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 13:47:36,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:47:36,487 INFO L87 Difference]: Start difference. First operand 2815 states and 3850 transitions. Second operand has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-19 13:47:38,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:38,071 INFO L93 Difference]: Finished difference Result 6052 states and 8299 transitions. [2021-11-19 13:47:38,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-19 13:47:38,072 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) Word has length 323 [2021-11-19 13:47:38,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:38,084 INFO L225 Difference]: With dead ends: 6052 [2021-11-19 13:47:38,084 INFO L226 Difference]: Without dead ends: 3256 [2021-11-19 13:47:38,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1946 GetRequests, 1922 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2021-11-19 13:47:38,096 INFO L933 BasicCegarLoop]: 2493 mSDtfsCounter, 1420 mSDsluCounter, 19524 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1565 SdHoareTripleChecker+Valid, 22017 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:38,096 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1565 Valid, 22017 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 13:47:38,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3256 states. [2021-11-19 13:47:38,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3256 to 2819. [2021-11-19 13:47:38,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1841 states have (on average 1.2151004888647474) internal successors, (2237), 1900 states have internal predecessors, (2237), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 794 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-19 13:47:38,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3854 transitions. [2021-11-19 13:47:38,509 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3854 transitions. Word has length 323 [2021-11-19 13:47:38,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:38,510 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3854 transitions. [2021-11-19 13:47:38,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.416666666666666) internal successors, (137), 12 states have internal predecessors, (137), 4 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (38), 4 states have call predecessors, (38), 4 states have call successors, (38) [2021-11-19 13:47:38,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3854 transitions. [2021-11-19 13:47:38,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-19 13:47:38,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:38,513 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-19 13:47:38,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:38,767 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:38,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:39,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:39,129 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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)] === [2021-11-19 13:47:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:39,129 INFO L85 PathProgramCache]: Analyzing trace with hash 936973369, now seen corresponding path program 1 times [2021-11-19 13:47:39,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:39,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1141679522] [2021-11-19 13:47:39,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:39,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:39,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:39,132 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:39,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-19 13:47:40,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:40,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:40,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 87 proven. 5 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 13:47:41,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:42,271 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 13:47:42,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:42,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1141679522] [2021-11-19 13:47:42,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1141679522] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:42,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1340976285] [2021-11-19 13:47:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:42,272 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:47:42,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:47:42,276 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:47:42,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2021-11-19 13:47:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:44,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:44,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:45,582 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 87 proven. 5 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2021-11-19 13:47:45,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:46,210 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2021-11-19 13:47:46,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1340976285] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:46,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647193506] [2021-11-19 13:47:46,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:46,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:47:46,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:47:46,211 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:47:46,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-19 13:47:47,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:47,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1620 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-19 13:47:47,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-19 13:47:48,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-19 13:47:48,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647193506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:48,653 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:47:48,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [5, 5, 5, 5] total 14 [2021-11-19 13:47:48,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106530716] [2021-11-19 13:47:48,654 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:48,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:47:48,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:47:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 13:47:48,655 INFO L87 Difference]: Start difference. First operand 2819 states and 3854 transitions. Second operand has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 13:47:52,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:47:52,145 INFO L93 Difference]: Finished difference Result 6162 states and 8693 transitions. [2021-11-19 13:47:52,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-19 13:47:52,146 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 335 [2021-11-19 13:47:52,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:47:52,158 INFO L225 Difference]: With dead ends: 6162 [2021-11-19 13:47:52,159 INFO L226 Difference]: Without dead ends: 6160 [2021-11-19 13:47:52,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2028 GetRequests, 1997 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=223, Invalid=833, Unknown=0, NotChecked=0, Total=1056 [2021-11-19 13:47:52,161 INFO L933 BasicCegarLoop]: 3677 mSDtfsCounter, 1761 mSDsluCounter, 17788 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 21465 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:47:52,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 21465 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 13:47:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2021-11-19 13:47:52,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 2819. [2021-11-19 13:47:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1841 states have (on average 1.2145573058120587) internal successors, (2236), 1900 states have internal predecessors, (2236), 807 states have call successors, (807), 165 states have call predecessors, (807), 166 states have return successors, (810), 794 states have call predecessors, (810), 807 states have call successors, (810) [2021-11-19 13:47:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 3853 transitions. [2021-11-19 13:47:52,738 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 3853 transitions. Word has length 335 [2021-11-19 13:47:52,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:47:52,739 INFO L470 AbstractCegarLoop]: Abstraction has 2819 states and 3853 transitions. [2021-11-19 13:47:52,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.625) internal successors, (133), 8 states have internal predecessors, (133), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-19 13:47:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 3853 transitions. [2021-11-19 13:47:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-19 13:47:52,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:47:52,744 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:47:52,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:52,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2021-11-19 13:47:53,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (37)] Ended with exit code 0 [2021-11-19 13:47:53,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:47:53,372 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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)] === [2021-11-19 13:47:53,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:47:53,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2060365720, now seen corresponding path program 1 times [2021-11-19 13:47:53,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:47:53,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1719009730] [2021-11-19 13:47:53,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:53,374 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:47:53,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:47:53,375 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:47:53,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2021-11-19 13:47:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:55,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:47:55,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 449 trivial. 0 not checked. [2021-11-19 13:47:55,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-19 13:47:56,555 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:47:56,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1719009730] [2021-11-19 13:47:56,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1719009730] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:47:56,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [141233054] [2021-11-19 13:47:56,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:47:56,555 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:47:56,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:47:56,556 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:47:56,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2021-11-19 13:47:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:47:57,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1674 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:47:57,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:47:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-19 13:47:58,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:47:59,255 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2021-11-19 13:47:59,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [141233054] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:47:59,255 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:47:59,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [5, 5] total 22 [2021-11-19 13:47:59,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253429837] [2021-11-19 13:47:59,256 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:47:59,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-19 13:47:59,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:47:59,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-19 13:47:59,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:47:59,257 INFO L87 Difference]: Start difference. First operand 2819 states and 3853 transitions. Second operand has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 13:48:02,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:02,398 INFO L93 Difference]: Finished difference Result 7391 states and 10240 transitions. [2021-11-19 13:48:02,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-19 13:48:02,398 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) Word has length 347 [2021-11-19 13:48:02,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:02,409 INFO L225 Difference]: With dead ends: 7391 [2021-11-19 13:48:02,409 INFO L226 Difference]: Without dead ends: 4591 [2021-11-19 13:48:02,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1407 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 13:48:02,415 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 2082 mSDsluCounter, 26423 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 629 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 29181 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 629 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:02,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2207 Valid, 29181 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [629 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-19 13:48:02,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-11-19 13:48:02,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 3291. [2021-11-19 13:48:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3291 states, 2175 states have (on average 1.2165517241379311) internal successors, (2646), 2243 states have internal predecessors, (2646), 943 states have call successors, (943), 165 states have call predecessors, (943), 168 states have return successors, (949), 931 states have call predecessors, (949), 943 states have call successors, (949) [2021-11-19 13:48:02,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3291 states to 3291 states and 4538 transitions. [2021-11-19 13:48:02,883 INFO L78 Accepts]: Start accepts. Automaton has 3291 states and 4538 transitions. Word has length 347 [2021-11-19 13:48:02,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:02,883 INFO L470 AbstractCegarLoop]: Abstraction has 3291 states and 4538 transitions. [2021-11-19 13:48:02,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.25) internal successors, (148), 14 states have internal predecessors, (148), 4 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (43), 6 states have call predecessors, (43), 4 states have call successors, (43) [2021-11-19 13:48:02,884 INFO L276 IsEmpty]: Start isEmpty. Operand 3291 states and 4538 transitions. [2021-11-19 13:48:02,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-19 13:48:02,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:02,887 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 8, 8, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:02,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:03,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:03,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:03,304 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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)] === [2021-11-19 13:48:03,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:03,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1086286432, now seen corresponding path program 1 times [2021-11-19 13:48:03,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:03,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1378951054] [2021-11-19 13:48:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:03,307 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:03,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:03,313 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:03,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2021-11-19 13:48:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:05,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:05,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-19 13:48:05,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-19 13:48:06,500 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:06,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1378951054] [2021-11-19 13:48:06,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1378951054] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:06,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1200940508] [2021-11-19 13:48:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:06,501 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:06,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:48:06,502 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:48:06,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2021-11-19 13:48:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:09,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:09,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:10,007 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 150 proven. 5 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-11-19 13:48:10,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:10,677 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 587 trivial. 0 not checked. [2021-11-19 13:48:10,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1200940508] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:10,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132398466] [2021-11-19 13:48:10,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:10,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:10,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:48:10,678 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:48:10,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-19 13:48:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:11,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1745 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:48:11,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:12,454 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-19 13:48:12,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2021-11-19 13:48:13,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132398466] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:48:13,197 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:48:13,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-19 13:48:13,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361570346] [2021-11-19 13:48:13,198 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:13,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:48:13,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:13,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:48:13,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:48:13,200 INFO L87 Difference]: Start difference. First operand 3291 states and 4538 transitions. Second operand has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-19 13:48:14,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:14,584 INFO L93 Difference]: Finished difference Result 6577 states and 9074 transitions. [2021-11-19 13:48:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:48:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 352 [2021-11-19 13:48:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:14,611 INFO L225 Difference]: With dead ends: 6577 [2021-11-19 13:48:14,612 INFO L226 Difference]: Without dead ends: 3305 [2021-11-19 13:48:14,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2110 GetRequests, 2093 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:48:14,627 INFO L933 BasicCegarLoop]: 2152 mSDtfsCounter, 17 mSDsluCounter, 14993 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17145 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:14,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 17145 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 266 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 13:48:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2021-11-19 13:48:15,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 3297. [2021-11-19 13:48:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2181 states have (on average 1.2159559834938103) internal successors, (2652), 2249 states have internal predecessors, (2652), 943 states have call successors, (943), 165 states have call predecessors, (943), 168 states have return successors, (949), 931 states have call predecessors, (949), 943 states have call successors, (949) [2021-11-19 13:48:15,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 4544 transitions. [2021-11-19 13:48:15,230 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 4544 transitions. Word has length 352 [2021-11-19 13:48:15,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:15,230 INFO L470 AbstractCegarLoop]: Abstraction has 3297 states and 4544 transitions. [2021-11-19 13:48:15,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 16.444444444444443) internal successors, (148), 8 states have internal predecessors, (148), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-19 13:48:15,230 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 4544 transitions. [2021-11-19 13:48:15,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-19 13:48:15,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:15,233 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:15,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:15,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (42)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:15,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-11-19 13:48:15,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:15,835 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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)] === [2021-11-19 13:48:15,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:15,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1117876722, now seen corresponding path program 1 times [2021-11-19 13:48:15,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:15,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013098555] [2021-11-19 13:48:15,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:15,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:15,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:15,837 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:15,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2021-11-19 13:48:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:17,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:17,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:18,406 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 311 proven. 5 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 13:48:18,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-19 13:48:19,151 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:19,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013098555] [2021-11-19 13:48:19,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013098555] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:19,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1504330922] [2021-11-19 13:48:19,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:19,151 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:19,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:48:19,152 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:48:19,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2021-11-19 13:48:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:21,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:21,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 311 proven. 5 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2021-11-19 13:48:22,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:23,374 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-11-19 13:48:23,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1504330922] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:23,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863999594] [2021-11-19 13:48:23,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:23,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:23,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:48:23,375 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:48:23,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-19 13:48:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:24,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 1739 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:48:24,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 234 proven. 0 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2021-11-19 13:48:25,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:26,248 INFO L134 CoverageAnalysis]: Checked inductivity of 791 backedges. 39 proven. 6 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-19 13:48:26,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863999594] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:48:26,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 13:48:26,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 19 [2021-11-19 13:48:26,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090332444] [2021-11-19 13:48:26,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:26,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:48:26,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:26,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:48:26,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2021-11-19 13:48:26,250 INFO L87 Difference]: Start difference. First operand 3297 states and 4544 transitions. Second operand has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:48:27,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:27,639 INFO L93 Difference]: Finished difference Result 6986 states and 9649 transitions. [2021-11-19 13:48:27,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 13:48:27,640 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 370 [2021-11-19 13:48:27,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:27,655 INFO L225 Difference]: With dead ends: 6986 [2021-11-19 13:48:27,656 INFO L226 Difference]: Without dead ends: 3706 [2021-11-19 13:48:27,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2217 GetRequests, 2198 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:48:27,666 INFO L933 BasicCegarLoop]: 2476 mSDtfsCounter, 369 mSDsluCounter, 14504 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 430 SdHoareTripleChecker+Valid, 16980 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:27,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [430 Valid, 16980 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:48:27,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2021-11-19 13:48:28,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3311. [2021-11-19 13:48:28,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3311 states, 2191 states have (on average 1.2149703331811958) internal successors, (2662), 2259 states have internal predecessors, (2662), 945 states have call successors, (945), 165 states have call predecessors, (945), 170 states have return successors, (954), 935 states have call predecessors, (954), 945 states have call successors, (954) [2021-11-19 13:48:28,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3311 states to 3311 states and 4561 transitions. [2021-11-19 13:48:28,146 INFO L78 Accepts]: Start accepts. Automaton has 3311 states and 4561 transitions. Word has length 370 [2021-11-19 13:48:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:28,146 INFO L470 AbstractCegarLoop]: Abstraction has 3311 states and 4561 transitions. [2021-11-19 13:48:28,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.5) internal successors, (148), 7 states have internal predecessors, (148), 3 states have call successors, (47), 2 states have call predecessors, (47), 4 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 13:48:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 3311 states and 4561 transitions. [2021-11-19 13:48:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-11-19 13:48:28,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:28,149 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:28,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (45)] Ended with exit code 0 [2021-11-19 13:48:28,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:28,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2021-11-19 13:48:28,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:28,750 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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)] === [2021-11-19 13:48:28,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:28,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1879607884, now seen corresponding path program 1 times [2021-11-19 13:48:28,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:28,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824123332] [2021-11-19 13:48:28,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:28,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:28,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:28,753 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:28,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 13:48:30,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:30,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:30,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:31,455 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 296 proven. 5 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-11-19 13:48:31,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:32,215 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-19 13:48:32,215 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:32,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824123332] [2021-11-19 13:48:32,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824123332] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:32,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [839664042] [2021-11-19 13:48:32,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:32,216 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:32,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:48:32,217 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:48:32,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2021-11-19 13:48:34,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:35,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:35,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:35,876 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 296 proven. 5 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2021-11-19 13:48:35,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:36,564 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-11-19 13:48:36,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [839664042] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:36,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458866872] [2021-11-19 13:48:36,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:36,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:36,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:48:36,565 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:48:36,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-19 13:48:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:37,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 1852 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-19 13:48:37,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:39,579 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2021-11-19 13:48:39,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 767 trivial. 0 not checked. [2021-11-19 13:48:40,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458866872] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:48:40,770 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:48:40,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-19 13:48:40,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968655633] [2021-11-19 13:48:40,771 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:40,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:48:40,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:48:40,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:48:40,772 INFO L87 Difference]: Start difference. First operand 3311 states and 4561 transitions. Second operand has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-19 13:48:41,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:41,313 INFO L93 Difference]: Finished difference Result 3538 states and 4801 transitions. [2021-11-19 13:48:41,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:48:41,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 371 [2021-11-19 13:48:41,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:41,325 INFO L225 Difference]: With dead ends: 3538 [2021-11-19 13:48:41,325 INFO L226 Difference]: Without dead ends: 3536 [2021-11-19 13:48:41,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2222 GetRequests, 2209 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:48:41,328 INFO L933 BasicCegarLoop]: 2244 mSDtfsCounter, 1009 mSDsluCounter, 7886 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 10130 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:41,329 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 10130 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:48:41,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2021-11-19 13:48:41,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 3534. [2021-11-19 13:48:41,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2337 states have (on average 1.2075310226786478) internal successors, (2822), 2409 states have internal predecessors, (2822), 983 states have call successors, (983), 205 states have call predecessors, (983), 210 states have return successors, (991), 973 states have call predecessors, (991), 983 states have call successors, (991) [2021-11-19 13:48:41,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4796 transitions. [2021-11-19 13:48:41,921 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4796 transitions. Word has length 371 [2021-11-19 13:48:41,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:41,921 INFO L470 AbstractCegarLoop]: Abstraction has 3534 states and 4796 transitions. [2021-11-19 13:48:41,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 26.285714285714285) internal successors, (184), 5 states have internal predecessors, (184), 2 states have call successors, (87), 4 states have call predecessors, (87), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-19 13:48:41,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4796 transitions. [2021-11-19 13:48:41,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-19 13:48:41,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:41,927 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:48:41,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:42,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:42,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:42,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:42,539 INFO L402 AbstractCegarLoop]: === Iteration 37 === 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)] === [2021-11-19 13:48:42,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:42,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1611754519, now seen corresponding path program 1 times [2021-11-19 13:48:42,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:42,541 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292353637] [2021-11-19 13:48:42,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:42,542 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:42,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:42,543 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 13:48:44,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:44,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:44,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 344 proven. 5 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-19 13:48:45,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:46,237 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2021-11-19 13:48:46,237 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:48:46,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292353637] [2021-11-19 13:48:46,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292353637] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:46,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1391034960] [2021-11-19 13:48:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:46,238 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:46,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:48:46,240 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:48:46,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2021-11-19 13:48:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:49,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:49,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:49,931 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 344 proven. 5 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-11-19 13:48:49,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:50,761 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2021-11-19 13:48:50,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1391034960] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:48:50,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600228822] [2021-11-19 13:48:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:50,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:48:50,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:48:50,762 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:48:50,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-19 13:48:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:51,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 1929 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:48:51,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:48:52,663 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2021-11-19 13:48:52,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:48:53,475 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2021-11-19 13:48:53,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600228822] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:48:53,476 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:48:53,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-19 13:48:53,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395201608] [2021-11-19 13:48:53,477 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:48:53,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:48:53,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:48:53,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:48:53,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:48:53,479 INFO L87 Difference]: Start difference. First operand 3534 states and 4796 transitions. Second operand has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:48:55,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:48:56,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:48:56,139 INFO L93 Difference]: Finished difference Result 3534 states and 4796 transitions. [2021-11-19 13:48:56,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:48:56,139 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 409 [2021-11-19 13:48:56,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:48:56,150 INFO L225 Difference]: With dead ends: 3534 [2021-11-19 13:48:56,150 INFO L226 Difference]: Without dead ends: 3532 [2021-11-19 13:48:56,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2450 GetRequests, 2437 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:48:56,154 INFO L933 BasicCegarLoop]: 2335 mSDtfsCounter, 1137 mSDsluCounter, 10551 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 12886 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:48:56,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 12886 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2021-11-19 13:48:56,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2021-11-19 13:48:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3532. [2021-11-19 13:48:56,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3532 states, 2336 states have (on average 1.2067636986301369) internal successors, (2819), 2407 states have internal predecessors, (2819), 983 states have call successors, (983), 205 states have call predecessors, (983), 210 states have return successors, (991), 973 states have call predecessors, (991), 983 states have call successors, (991) [2021-11-19 13:48:56,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4793 transitions. [2021-11-19 13:48:56,775 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4793 transitions. Word has length 409 [2021-11-19 13:48:56,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:48:56,775 INFO L470 AbstractCegarLoop]: Abstraction has 3532 states and 4793 transitions. [2021-11-19 13:48:56,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.857142857142858) internal successors, (153), 5 states have internal predecessors, (153), 2 states have call successors, (57), 4 states have call predecessors, (57), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 13:48:56,776 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4793 transitions. [2021-11-19 13:48:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-19 13:48:56,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:48:56,784 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-19 13:48:56,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:57,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 13:48:57,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2021-11-19 13:48:57,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:48:57,412 INFO L402 AbstractCegarLoop]: === Iteration 38 === 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)] === [2021-11-19 13:48:57,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:48:57,412 INFO L85 PathProgramCache]: Analyzing trace with hash -926729527, now seen corresponding path program 1 times [2021-11-19 13:48:57,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:48:57,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1046570712] [2021-11-19 13:48:57,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:48:57,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:48:57,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:48:57,415 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:48:57,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 13:48:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:48:59,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:48:59,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-19 13:49:00,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:01,226 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-19 13:49:01,226 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:01,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1046570712] [2021-11-19 13:49:01,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1046570712] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:01,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1580486714] [2021-11-19 13:49:01,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:01,227 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:49:01,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:49:01,227 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:49:01,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-19 13:49:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:02,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:49:02,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:04,557 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-11-19 13:49:04,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-11-19 13:49:05,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1580486714] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:05,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:49:05,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [5, 5] total 13 [2021-11-19 13:49:05,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308185716] [2021-11-19 13:49:05,984 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:05,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:49:05,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:49:05,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:49:05,986 INFO L87 Difference]: Start difference. First operand 3532 states and 4793 transitions. Second operand has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) [2021-11-19 13:49:08,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:49:13,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:13,891 INFO L93 Difference]: Finished difference Result 7539 states and 10253 transitions. [2021-11-19 13:49:13,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:49:13,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) Word has length 456 [2021-11-19 13:49:13,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:13,910 INFO L225 Difference]: With dead ends: 7539 [2021-11-19 13:49:13,911 INFO L226 Difference]: Without dead ends: 4026 [2021-11-19 13:49:13,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1822 GetRequests, 1809 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:49:13,924 INFO L933 BasicCegarLoop]: 2484 mSDtfsCounter, 1879 mSDsluCounter, 8091 mSDsCounter, 0 mSdLazyCounter, 1844 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 10575 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1844 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:13,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1881 Valid, 10575 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1844 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-19 13:49:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4026 states. [2021-11-19 13:49:14,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4026 to 4026. [2021-11-19 13:49:14,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4026 states, 2684 states have (on average 1.2201937406855439) internal successors, (3275), 2769 states have internal predecessors, (3275), 1087 states have call successors, (1087), 247 states have call predecessors, (1087), 252 states have return successors, (1095), 1071 states have call predecessors, (1095), 1087 states have call successors, (1095) [2021-11-19 13:49:14,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4026 states to 4026 states and 5457 transitions. [2021-11-19 13:49:14,524 INFO L78 Accepts]: Start accepts. Automaton has 4026 states and 5457 transitions. Word has length 456 [2021-11-19 13:49:14,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:14,524 INFO L470 AbstractCegarLoop]: Abstraction has 4026 states and 5457 transitions. [2021-11-19 13:49:14,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 35.142857142857146) internal successors, (246), 6 states have internal predecessors, (246), 2 states have call successors, (113), 2 states have call predecessors, (113), 4 states have return successors, (108), 3 states have call predecessors, (108), 2 states have call successors, (108) [2021-11-19 13:49:14,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4026 states and 5457 transitions. [2021-11-19 13:49:14,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2021-11-19 13:49:14,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:14,531 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 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] [2021-11-19 13:49:14,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:14,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:14,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:49:14,932 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)] === [2021-11-19 13:49:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash -926669945, now seen corresponding path program 1 times [2021-11-19 13:49:14,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:14,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814400199] [2021-11-19 13:49:14,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:14,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:14,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:14,935 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:14,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Waiting until timeout for monitored process [2021-11-19 13:49:16,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:16,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:16,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-19 13:49:17,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-19 13:49:18,768 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:18,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814400199] [2021-11-19 13:49:18,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814400199] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:18,768 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1202941837] [2021-11-19 13:49:18,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:18,769 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:49:18,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:49:18,769 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:49:18,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2021-11-19 13:49:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:21,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:21,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 279 proven. 5 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2021-11-19 13:49:22,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 823 trivial. 0 not checked. [2021-11-19 13:49:23,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1202941837] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:23,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [344489784] [2021-11-19 13:49:23,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:23,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:49:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:49:23,475 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:49:23,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-19 13:49:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:24,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:49:24,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:25,517 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 309 proven. 0 refuted. 0 times theorem prover too weak. 519 trivial. 0 not checked. [2021-11-19 13:49:25,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:26,433 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 36 proven. 9 refuted. 0 times theorem prover too weak. 783 trivial. 0 not checked. [2021-11-19 13:49:26,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [344489784] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:49:26,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 13:49:26,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5, 6] total 13 [2021-11-19 13:49:26,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149630522] [2021-11-19 13:49:26,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:26,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:49:26,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:26,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:49:26,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:49:26,435 INFO L87 Difference]: Start difference. First operand 4026 states and 5457 transitions. Second operand has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 13:49:28,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:28,061 INFO L93 Difference]: Finished difference Result 8739 states and 11908 transitions. [2021-11-19 13:49:28,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:49:28,062 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 456 [2021-11-19 13:49:28,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:28,076 INFO L225 Difference]: With dead ends: 8739 [2021-11-19 13:49:28,077 INFO L226 Difference]: Without dead ends: 4731 [2021-11-19 13:49:28,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2733 GetRequests, 2720 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:49:28,089 INFO L933 BasicCegarLoop]: 3360 mSDtfsCounter, 769 mSDsluCounter, 11625 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 14985 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:28,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 14985 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 13:49:28,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4731 states. [2021-11-19 13:49:28,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4731 to 4025. [2021-11-19 13:49:28,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4025 states, 2684 states have (on average 1.2198211624441133) internal successors, (3274), 2768 states have internal predecessors, (3274), 1086 states have call successors, (1086), 247 states have call predecessors, (1086), 252 states have return successors, (1094), 1071 states have call predecessors, (1094), 1086 states have call successors, (1094) [2021-11-19 13:49:28,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4025 states to 4025 states and 5454 transitions. [2021-11-19 13:49:28,844 INFO L78 Accepts]: Start accepts. Automaton has 4025 states and 5454 transitions. Word has length 456 [2021-11-19 13:49:28,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:28,845 INFO L470 AbstractCegarLoop]: Abstraction has 4025 states and 5454 transitions. [2021-11-19 13:49:28,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 34.0) internal successors, (204), 6 states have internal predecessors, (204), 3 states have call successors, (60), 2 states have call predecessors, (60), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-19 13:49:28,845 INFO L276 IsEmpty]: Start isEmpty. Operand 4025 states and 5454 transitions. [2021-11-19 13:49:28,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-11-19 13:49:28,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:28,853 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:49:28,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:29,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2021-11-19 13:49:29,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (56)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:29,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:29,468 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)] === [2021-11-19 13:49:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash -812370256, now seen corresponding path program 1 times [2021-11-19 13:49:29,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:29,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936178313] [2021-11-19 13:49:29,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:29,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:29,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:29,471 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:29,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Waiting until timeout for monitored process [2021-11-19 13:49:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:31,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:31,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2021-11-19 13:49:32,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:34,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2355 trivial. 0 not checked. [2021-11-19 13:49:34,325 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:34,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936178313] [2021-11-19 13:49:34,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936178313] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:34,325 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [551330676] [2021-11-19 13:49:34,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:34,325 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:49:34,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:49:34,326 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:49:34,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2021-11-19 13:49:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:35,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:49:35,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 2090 trivial. 0 not checked. [2021-11-19 13:49:36,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2360 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2360 trivial. 0 not checked. [2021-11-19 13:49:37,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [551330676] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:37,811 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:49:37,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 10 [2021-11-19 13:49:37,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266546324] [2021-11-19 13:49:37,812 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:37,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:49:37,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:37,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:49:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:49:37,813 INFO L87 Difference]: Start difference. First operand 4025 states and 5454 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2021-11-19 13:49:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:38,438 INFO L93 Difference]: Finished difference Result 8035 states and 10894 transitions. [2021-11-19 13:49:38,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:49:38,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 625 [2021-11-19 13:49:38,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:38,456 INFO L225 Difference]: With dead ends: 8035 [2021-11-19 13:49:38,457 INFO L226 Difference]: Without dead ends: 4029 [2021-11-19 13:49:38,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2496 GetRequests, 2488 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:49:38,468 INFO L933 BasicCegarLoop]: 2169 mSDtfsCounter, 0 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4336 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:38,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4336 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:49:38,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4029 states. [2021-11-19 13:49:39,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4029 to 4029. [2021-11-19 13:49:39,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4029 states, 2688 states have (on average 1.2194940476190477) internal successors, (3278), 2772 states have internal predecessors, (3278), 1086 states have call successors, (1086), 247 states have call predecessors, (1086), 252 states have return successors, (1094), 1071 states have call predecessors, (1094), 1086 states have call successors, (1094) [2021-11-19 13:49:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4029 states to 4029 states and 5458 transitions. [2021-11-19 13:49:39,205 INFO L78 Accepts]: Start accepts. Automaton has 4029 states and 5458 transitions. Word has length 625 [2021-11-19 13:49:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:39,205 INFO L470 AbstractCegarLoop]: Abstraction has 4029 states and 5458 transitions. [2021-11-19 13:49:39,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 2 states have call successors, (135), 2 states have call predecessors, (135), 2 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2021-11-19 13:49:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 4029 states and 5458 transitions. [2021-11-19 13:49:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2021-11-19 13:49:39,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:39,212 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:49:39,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:39,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (59)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:39,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:49:39,613 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)] === [2021-11-19 13:49:39,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:39,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1575691510, now seen corresponding path program 1 times [2021-11-19 13:49:39,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:39,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620706049] [2021-11-19 13:49:39,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:39,616 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:39,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:39,617 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:39,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (61)] Waiting until timeout for monitored process [2021-11-19 13:49:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:41,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:41,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2021-11-19 13:49:43,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-11-19 13:49:44,438 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:49:44,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620706049] [2021-11-19 13:49:44,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620706049] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:44,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1614581587] [2021-11-19 13:49:44,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:44,439 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:49:44,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:49:44,440 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:49:44,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2021-11-19 13:49:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:47,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:47,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:49,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2021-11-19 13:49:49,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2021-11-19 13:49:50,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1614581587] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:49:50,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404401716] [2021-11-19 13:49:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:50,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:49:50,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:49:50,262 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:49:50,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-19 13:49:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:51,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 2481 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:49:51,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 2332 trivial. 0 not checked. [2021-11-19 13:49:52,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:49:53,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2362 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2362 trivial. 0 not checked. [2021-11-19 13:49:53,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404401716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:49:53,427 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:49:53,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-19 13:49:53,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398017478] [2021-11-19 13:49:53,429 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:49:53,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:49:53,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:49:53,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:49:53,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:49:53,430 INFO L87 Difference]: Start difference. First operand 4029 states and 5458 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-19 13:49:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:49:54,671 INFO L93 Difference]: Finished difference Result 8075 states and 10976 transitions. [2021-11-19 13:49:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:49:54,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 627 [2021-11-19 13:49:54,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:49:54,690 INFO L225 Difference]: With dead ends: 8075 [2021-11-19 13:49:54,690 INFO L226 Difference]: Without dead ends: 4065 [2021-11-19 13:49:54,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3756 GetRequests, 3748 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:49:54,699 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 24 mSDsluCounter, 4298 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:49:54,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 6460 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:49:54,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4065 states. [2021-11-19 13:49:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4065 to 4065. [2021-11-19 13:49:55,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2716 states have (on average 1.218703976435935) internal successors, (3310), 2800 states have internal predecessors, (3310), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-19 13:49:55,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5506 transitions. [2021-11-19 13:49:55,311 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5506 transitions. Word has length 627 [2021-11-19 13:49:55,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:49:55,312 INFO L470 AbstractCegarLoop]: Abstraction has 4065 states and 5506 transitions. [2021-11-19 13:49:55,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 2 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2021-11-19 13:49:55,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5506 transitions. [2021-11-19 13:49:55,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2021-11-19 13:49:55,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:49:55,319 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:49:55,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:55,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (61)] Ended with exit code 0 [2021-11-19 13:49:55,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-19 13:49:55,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:49:55,932 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)] === [2021-11-19 13:49:55,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:49:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1222389174, now seen corresponding path program 1 times [2021-11-19 13:49:55,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:49:55,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834103899] [2021-11-19 13:49:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:49:55,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:49:55,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:49:55,935 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:49:55,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Waiting until timeout for monitored process [2021-11-19 13:49:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:49:58,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:49:58,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:49:59,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-19 13:49:59,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-19 13:50:00,801 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:50:00,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834103899] [2021-11-19 13:50:00,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1834103899] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:00,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [787786076] [2021-11-19 13:50:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:00,801 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:00,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:50:00,803 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:50:00,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2021-11-19 13:50:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:04,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:50:04,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:05,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-19 13:50:05,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:06,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-19 13:50:06,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [787786076] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:06,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714538730] [2021-11-19 13:50:06,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:06,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:50:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:50:06,730 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:50:06,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-19 13:50:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:08,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 13:50:08,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:09,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-19 13:50:09,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-19 13:50:10,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714538730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:50:10,089 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:50:10,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5, 5, 5] total 13 [2021-11-19 13:50:10,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399972185] [2021-11-19 13:50:10,091 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:50:10,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 13:50:10,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:50:10,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 13:50:10,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:50:10,092 INFO L87 Difference]: Start difference. First operand 4065 states and 5506 transitions. Second operand has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-19 13:50:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:50:10,894 INFO L93 Difference]: Finished difference Result 4065 states and 5506 transitions. [2021-11-19 13:50:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:50:10,895 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) Word has length 643 [2021-11-19 13:50:10,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:50:10,911 INFO L225 Difference]: With dead ends: 4065 [2021-11-19 13:50:10,911 INFO L226 Difference]: Without dead ends: 4063 [2021-11-19 13:50:10,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3854 GetRequests, 3841 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:50:10,915 INFO L933 BasicCegarLoop]: 2164 mSDtfsCounter, 41 mSDsluCounter, 10768 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 12932 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:50:10,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 12932 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:50:10,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4063 states. [2021-11-19 13:50:11,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4063 to 4063. [2021-11-19 13:50:11,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4063 states, 2715 states have (on average 1.21804788213628) internal successors, (3307), 2798 states have internal predecessors, (3307), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-19 13:50:11,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4063 states to 4063 states and 5503 transitions. [2021-11-19 13:50:11,450 INFO L78 Accepts]: Start accepts. Automaton has 4063 states and 5503 transitions. Word has length 643 [2021-11-19 13:50:11,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:50:11,451 INFO L470 AbstractCegarLoop]: Abstraction has 4063 states and 5503 transitions. [2021-11-19 13:50:11,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-19 13:50:11,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4063 states and 5503 transitions. [2021-11-19 13:50:11,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2021-11-19 13:50:11,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:50:11,458 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 18, 18, 18, 9, 9, 9, 9, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:50:11,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:11,706 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (64)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:11,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-11-19 13:50:12,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:50:12,059 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ldv_check_alloc_flagsErr1ASSERT_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)] === [2021-11-19 13:50:12,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:50:12,060 INFO L85 PathProgramCache]: Analyzing trace with hash 156968336, now seen corresponding path program 1 times [2021-11-19 13:50:12,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:50:12,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960919894] [2021-11-19 13:50:12,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:12,062 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:50:12,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:50:12,063 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:50:12,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Waiting until timeout for monitored process [2021-11-19 13:50:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:14,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:50:14,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:15,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 419 proven. 5 refuted. 0 times theorem prover too weak. 1950 trivial. 0 not checked. [2021-11-19 13:50:15,743 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2369 trivial. 0 not checked. [2021-11-19 13:50:17,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:50:17,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960919894] [2021-11-19 13:50:17,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960919894] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:17,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2036672342] [2021-11-19 13:50:17,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:17,111 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:17,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:50:17,112 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:50:17,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2021-11-19 13:50:18,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:18,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 2508 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:50:18,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-19 13:50:21,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2374 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2374 trivial. 0 not checked. [2021-11-19 13:50:23,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2036672342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:50:23,253 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:50:23,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [5, 5] total 10 [2021-11-19 13:50:23,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146073247] [2021-11-19 13:50:23,254 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:50:23,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:50:23,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:50:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:50:23,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:50:23,256 INFO L87 Difference]: Start difference. First operand 4063 states and 5503 transitions. Second operand has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) [2021-11-19 13:50:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:50:25,253 INFO L93 Difference]: Finished difference Result 8101 states and 11000 transitions. [2021-11-19 13:50:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:50:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) Word has length 647 [2021-11-19 13:50:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:50:25,270 INFO L225 Difference]: With dead ends: 8101 [2021-11-19 13:50:25,270 INFO L226 Difference]: Without dead ends: 4057 [2021-11-19 13:50:25,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2584 GetRequests, 2576 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:50:25,292 INFO L933 BasicCegarLoop]: 2162 mSDtfsCounter, 2888 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 2162 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:50:25,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2888 Valid, 2162 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-19 13:50:25,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2021-11-19 13:50:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4057. [2021-11-19 13:50:25,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 2710 states have (on average 1.2169741697416974) internal successors, (3298), 2792 states have internal predecessors, (3298), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 252 states have return successors, (1102), 1079 states have call predecessors, (1102), 1094 states have call successors, (1102) [2021-11-19 13:50:25,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 5494 transitions. [2021-11-19 13:50:25,925 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 5494 transitions. Word has length 647 [2021-11-19 13:50:25,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:50:25,925 INFO L470 AbstractCegarLoop]: Abstraction has 4057 states and 5494 transitions. [2021-11-19 13:50:25,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.0) internal successors, (424), 4 states have internal predecessors, (424), 3 states have call successors, (190), 3 states have call predecessors, (190), 2 states have return successors, (182), 3 states have call predecessors, (182), 3 states have call successors, (182) [2021-11-19 13:50:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 5494 transitions. [2021-11-19 13:50:25,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 697 [2021-11-19 13:50:25,935 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:50:25,936 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 20, 20, 20, 10, 10, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:50:25,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (67)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:26,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:26,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:26,337 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)] === [2021-11-19 13:50:26,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:50:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash 315894927, now seen corresponding path program 1 times [2021-11-19 13:50:26,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:50:26,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108717358] [2021-11-19 13:50:26,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:26,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:50:26,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:50:26,340 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:50:26,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (69)] Waiting until timeout for monitored process [2021-11-19 13:50:28,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:28,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:50:28,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:30,355 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 524 proven. 5 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked. [2021-11-19 13:50:30,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:31,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2511 trivial. 0 not checked. [2021-11-19 13:50:31,747 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:50:31,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108717358] [2021-11-19 13:50:31,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108717358] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:31,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1110472964] [2021-11-19 13:50:31,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:31,748 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:31,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:50:31,749 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:50:31,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2021-11-19 13:50:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:33,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2639 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:50:33,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:34,403 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-19 13:50:34,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:35,981 INFO L134 CoverageAnalysis]: Checked inductivity of 2516 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2516 trivial. 0 not checked. [2021-11-19 13:50:35,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1110472964] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:50:35,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:50:35,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [5, 5] total 15 [2021-11-19 13:50:35,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263482821] [2021-11-19 13:50:35,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:50:35,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:50:35,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:50:35,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:50:35,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:50:35,984 INFO L87 Difference]: Start difference. First operand 4057 states and 5494 transitions. Second operand has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) [2021-11-19 13:50:36,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:50:36,769 INFO L93 Difference]: Finished difference Result 8257 states and 11239 transitions. [2021-11-19 13:50:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:50:36,770 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) Word has length 696 [2021-11-19 13:50:36,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:50:36,783 INFO L225 Difference]: With dead ends: 8257 [2021-11-19 13:50:36,783 INFO L226 Difference]: Without dead ends: 4219 [2021-11-19 13:50:36,793 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2781 GetRequests, 2767 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:50:36,794 INFO L933 BasicCegarLoop]: 2227 mSDtfsCounter, 59 mSDsluCounter, 15503 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 17730 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:50:36,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 17730 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:50:36,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4219 states. [2021-11-19 13:50:37,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4219 to 4065. [2021-11-19 13:50:37,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 2716 states have (on average 1.2164948453608246) internal successors, (3304), 2798 states have internal predecessors, (3304), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 254 states have return successors, (1111), 1081 states have call predecessors, (1111), 1094 states have call successors, (1111) [2021-11-19 13:50:37,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 5509 transitions. [2021-11-19 13:50:37,459 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 5509 transitions. Word has length 696 [2021-11-19 13:50:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:50:37,460 INFO L470 AbstractCegarLoop]: Abstraction has 4065 states and 5509 transitions. [2021-11-19 13:50:37,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 31.0) internal successors, (279), 7 states have internal predecessors, (279), 2 states have call successors, (112), 2 states have call predecessors, (112), 4 states have return successors, (113), 4 states have call predecessors, (113), 2 states have call successors, (113) [2021-11-19 13:50:37,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 5509 transitions. [2021-11-19 13:50:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2021-11-19 13:50:37,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:50:37,477 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 20, 20, 20, 16, 16, 11, 11, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:50:37,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (69)] Ended with exit code 0 [2021-11-19 13:50:37,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2021-11-19 13:50:37,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:37,878 INFO L402 AbstractCegarLoop]: === Iteration 45 === 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)] === [2021-11-19 13:50:37,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:50:37,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1627206126, now seen corresponding path program 1 times [2021-11-19 13:50:37,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:50:37,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078403702] [2021-11-19 13:50:37,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:37,882 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:50:37,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:50:37,882 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:50:37,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-11-19 13:50:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:40,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:50:40,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:42,831 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 536 proven. 5 refuted. 0 times theorem prover too weak. 4294 trivial. 0 not checked. [2021-11-19 13:50:42,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4830 trivial. 0 not checked. [2021-11-19 13:50:44,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:50:44,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078403702] [2021-11-19 13:50:44,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078403702] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:44,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [329801625] [2021-11-19 13:50:44,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:44,744 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:44,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:50:44,746 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:50:44,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2021-11-19 13:50:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:46,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:50:46,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:47,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 1981 proven. 0 refuted. 0 times theorem prover too weak. 2854 trivial. 0 not checked. [2021-11-19 13:50:47,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:49,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4835 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4835 trivial. 0 not checked. [2021-11-19 13:50:49,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [329801625] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:50:49,867 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:50:49,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 12 [2021-11-19 13:50:49,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326243088] [2021-11-19 13:50:49,868 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:50:49,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:50:49,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:50:49,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:50:49,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-19 13:50:49,870 INFO L87 Difference]: Start difference. First operand 4065 states and 5509 transitions. Second operand has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2021-11-19 13:50:50,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:50:50,487 INFO L93 Difference]: Finished difference Result 8119 states and 11032 transitions. [2021-11-19 13:50:50,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:50:50,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) Word has length 904 [2021-11-19 13:50:50,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:50:50,499 INFO L225 Difference]: With dead ends: 8119 [2021-11-19 13:50:50,500 INFO L226 Difference]: Without dead ends: 4073 [2021-11-19 13:50:50,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3613 GetRequests, 3602 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-19 13:50:50,509 INFO L933 BasicCegarLoop]: 2161 mSDtfsCounter, 11 mSDsluCounter, 4319 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6480 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:50:50,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 6480 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:50:50,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4073 states. [2021-11-19 13:50:51,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4073 to 4069. [2021-11-19 13:50:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2720 states have (on average 1.2161764705882352) internal successors, (3308), 2802 states have internal predecessors, (3308), 1094 states have call successors, (1094), 247 states have call predecessors, (1094), 254 states have return successors, (1111), 1081 states have call predecessors, (1111), 1094 states have call successors, (1111) [2021-11-19 13:50:51,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5513 transitions. [2021-11-19 13:50:51,135 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5513 transitions. Word has length 904 [2021-11-19 13:50:51,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:50:51,136 INFO L470 AbstractCegarLoop]: Abstraction has 4069 states and 5513 transitions. [2021-11-19 13:50:51,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.333333333333336) internal successors, (344), 6 states have internal predecessors, (344), 2 states have call successors, (178), 2 states have call predecessors, (178), 2 states have return successors, (178), 2 states have call predecessors, (178), 2 states have call successors, (178) [2021-11-19 13:50:51,136 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5513 transitions. [2021-11-19 13:50:51,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2021-11-19 13:50:51,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:50:51,152 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 20, 20, 20, 16, 16, 13, 13, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:50:51,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:51,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2021-11-19 13:50:51,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:51,553 INFO L402 AbstractCegarLoop]: === Iteration 46 === 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)] === [2021-11-19 13:50:51,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:50:51,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1392282258, now seen corresponding path program 1 times [2021-11-19 13:50:51,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:50:51,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360475115] [2021-11-19 13:50:51,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:51,556 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:50:51,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:50:51,557 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:50:51,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (73)] Waiting until timeout for monitored process [2021-11-19 13:50:53,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:50:54,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:50:54,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:50:56,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 542 proven. 5 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-11-19 13:50:56,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:50:58,269 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-11-19 13:50:58,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:50:58,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360475115] [2021-11-19 13:50:58,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360475115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:50:58,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2099921424] [2021-11-19 13:50:58,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:50:58,269 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:50:58,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:50:58,270 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:50:58,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2021-11-19 13:51:01,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:02,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:51:02,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:04,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 542 proven. 5 refuted. 0 times theorem prover too weak. 4369 trivial. 0 not checked. [2021-11-19 13:51:04,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4911 trivial. 0 not checked. [2021-11-19 13:51:05,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2099921424] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:51:05,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1767936622] [2021-11-19 13:51:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:05,975 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:05,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:51:05,975 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:51:05,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-19 13:51:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:07,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:51:07,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 4814 trivial. 0 not checked. [2021-11-19 13:51:08,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4916 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 4859 trivial. 0 not checked. [2021-11-19 13:51:10,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1767936622] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:51:10,781 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:51:10,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [5, 5, 5, 5] total 15 [2021-11-19 13:51:10,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143906904] [2021-11-19 13:51:10,783 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:51:10,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-19 13:51:10,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:51:10,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-19 13:51:10,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:51:10,784 INFO L87 Difference]: Start difference. First operand 4069 states and 5513 transitions. Second operand has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) [2021-11-19 13:51:12,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:51:12,402 INFO L93 Difference]: Finished difference Result 8499 states and 11532 transitions. [2021-11-19 13:51:12,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 13:51:12,403 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) Word has length 918 [2021-11-19 13:51:12,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:51:12,422 INFO L225 Difference]: With dead ends: 8499 [2021-11-19 13:51:12,422 INFO L226 Difference]: Without dead ends: 4447 [2021-11-19 13:51:12,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5506 GetRequests, 5490 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:51:12,435 INFO L933 BasicCegarLoop]: 2766 mSDtfsCounter, 864 mSDsluCounter, 12460 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 15226 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:51:12,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 15226 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:51:12,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4447 states. [2021-11-19 13:51:13,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4447 to 4067. [2021-11-19 13:51:13,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4067 states, 2720 states have (on average 1.2154411764705881) internal successors, (3306), 2800 states have internal predecessors, (3306), 1092 states have call successors, (1092), 247 states have call predecessors, (1092), 254 states have return successors, (1109), 1079 states have call predecessors, (1109), 1092 states have call successors, (1109) [2021-11-19 13:51:13,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4067 states to 4067 states and 5507 transitions. [2021-11-19 13:51:13,106 INFO L78 Accepts]: Start accepts. Automaton has 4067 states and 5507 transitions. Word has length 918 [2021-11-19 13:51:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:51:13,107 INFO L470 AbstractCegarLoop]: Abstraction has 4067 states and 5507 transitions. [2021-11-19 13:51:13,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 32.111111111111114) internal successors, (289), 8 states have internal predecessors, (289), 3 states have call successors, (134), 2 states have call predecessors, (134), 4 states have return successors, (134), 4 states have call predecessors, (134), 3 states have call successors, (134) [2021-11-19 13:51:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 4067 states and 5507 transitions. [2021-11-19 13:51:13,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 968 [2021-11-19 13:51:13,130 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:51:13,130 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 11, 11, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:51:13,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (73)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:13,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:13,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (74)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:13,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:51:13,731 INFO L402 AbstractCegarLoop]: === Iteration 47 === 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)] === [2021-11-19 13:51:13,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:51:13,732 INFO L85 PathProgramCache]: Analyzing trace with hash 966701270, now seen corresponding path program 1 times [2021-11-19 13:51:13,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:51:13,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600959342] [2021-11-19 13:51:13,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:13,734 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:51:13,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:51:13,735 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:51:13,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (76)] Waiting until timeout for monitored process [2021-11-19 13:51:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:16,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:51:16,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:18,722 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 700 proven. 5 refuted. 0 times theorem prover too weak. 4463 trivial. 0 not checked. [2021-11-19 13:51:18,722 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5163 trivial. 0 not checked. [2021-11-19 13:51:20,697 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:51:20,697 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600959342] [2021-11-19 13:51:20,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600959342] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:51:20,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [457538553] [2021-11-19 13:51:20,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:20,698 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:51:20,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:51:20,699 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:51:20,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2021-11-19 13:51:24,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:24,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:51:24,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:26,748 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 700 proven. 5 refuted. 0 times theorem prover too weak. 4463 trivial. 0 not checked. [2021-11-19 13:51:26,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:28,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5163 trivial. 0 not checked. [2021-11-19 13:51:28,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [457538553] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:51:28,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238325250] [2021-11-19 13:51:28,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:28,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:28,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:51:28,687 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:51:28,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-19 13:51:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:30,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 3265 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:51:30,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 2234 proven. 0 refuted. 0 times theorem prover too weak. 2934 trivial. 0 not checked. [2021-11-19 13:51:31,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:34,010 INFO L134 CoverageAnalysis]: Checked inductivity of 5168 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5168 trivial. 0 not checked. [2021-11-19 13:51:34,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238325250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:51:34,011 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:51:34,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-19 13:51:34,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289975362] [2021-11-19 13:51:34,012 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:51:34,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:51:34,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:51:34,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:51:34,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:51:34,014 INFO L87 Difference]: Start difference. First operand 4067 states and 5507 transitions. Second operand has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-19 13:51:36,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:51:37,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:51:37,578 INFO L93 Difference]: Finished difference Result 8169 states and 11105 transitions. [2021-11-19 13:51:37,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:51:37,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) Word has length 967 [2021-11-19 13:51:37,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:51:37,595 INFO L225 Difference]: With dead ends: 8169 [2021-11-19 13:51:37,596 INFO L226 Difference]: Without dead ends: 4121 [2021-11-19 13:51:37,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5796 GetRequests, 5788 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:51:37,609 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 24 mSDsluCounter, 4293 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 6458 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:51:37,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 6458 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-19 13:51:37,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2021-11-19 13:51:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4091. [2021-11-19 13:51:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4091 states, 2740 states have (on average 1.2145985401459853) internal successors, (3328), 2820 states have internal predecessors, (3328), 1096 states have call successors, (1096), 247 states have call predecessors, (1096), 254 states have return successors, (1113), 1083 states have call predecessors, (1113), 1096 states have call successors, (1113) [2021-11-19 13:51:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4091 states to 4091 states and 5537 transitions. [2021-11-19 13:51:38,269 INFO L78 Accepts]: Start accepts. Automaton has 4091 states and 5537 transitions. Word has length 967 [2021-11-19 13:51:38,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:51:38,270 INFO L470 AbstractCegarLoop]: Abstraction has 4091 states and 5537 transitions. [2021-11-19 13:51:38,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.0) internal successors, (372), 4 states have internal predecessors, (372), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-19 13:51:38,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4091 states and 5537 transitions. [2021-11-19 13:51:38,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2021-11-19 13:51:38,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:51:38,291 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:51:38,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (76)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:38,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (77)] Forceful destruction successful, exit code 0 [2021-11-19 13:51:38,742 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-11-19 13:51:38,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:38,891 INFO L402 AbstractCegarLoop]: === Iteration 48 === 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)] === [2021-11-19 13:51:38,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:51:38,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1169971849, now seen corresponding path program 1 times [2021-11-19 13:51:38,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:51:38,894 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393417942] [2021-11-19 13:51:38,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:38,895 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:51:38,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:51:38,895 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:51:38,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-11-19 13:51:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:41,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 3656 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:51:41,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:44,511 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2021-11-19 13:51:44,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:46,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2021-11-19 13:51:46,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:51:46,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393417942] [2021-11-19 13:51:46,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393417942] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:51:46,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [345584090] [2021-11-19 13:51:46,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:46,771 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:51:46,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:51:46,772 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:51:46,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2021-11-19 13:51:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:51,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 3656 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:51:51,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:53,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4565 trivial. 0 not checked. [2021-11-19 13:51:53,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:51:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5319 trivial. 0 not checked. [2021-11-19 13:51:55,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [345584090] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:51:55,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749504599] [2021-11-19 13:51:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:51:55,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:51:55,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:51:55,793 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:51:55,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-19 13:51:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:51:57,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 3656 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:51:57,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:51:59,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 763 proven. 0 refuted. 0 times theorem prover too weak. 4561 trivial. 0 not checked. [2021-11-19 13:51:59,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:52:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5324 trivial. 0 not checked. [2021-11-19 13:52:01,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749504599] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:52:01,580 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:52:01,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5, 5, 5] total 10 [2021-11-19 13:52:01,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437171156] [2021-11-19 13:52:01,582 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:52:01,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:52:01,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:52:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:52:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:52:01,584 INFO L87 Difference]: Start difference. First operand 4091 states and 5537 transitions. Second operand has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2021-11-19 13:52:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:52:02,271 INFO L93 Difference]: Finished difference Result 8173 states and 11087 transitions. [2021-11-19 13:52:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:52:02,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) Word has length 1099 [2021-11-19 13:52:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:52:02,285 INFO L225 Difference]: With dead ends: 8173 [2021-11-19 13:52:02,285 INFO L226 Difference]: Without dead ends: 4101 [2021-11-19 13:52:02,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6588 GetRequests, 6580 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 13:52:02,294 INFO L933 BasicCegarLoop]: 2161 mSDtfsCounter, 6 mSDsluCounter, 2156 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4317 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:52:02,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4317 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:52:02,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4101 states. [2021-11-19 13:52:02,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4101 to 4101. [2021-11-19 13:52:02,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4101 states, 2748 states have (on average 1.2139737991266375) internal successors, (3336), 2828 states have internal predecessors, (3336), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 254 states have return successors, (1115), 1085 states have call predecessors, (1115), 1098 states have call successors, (1115) [2021-11-19 13:52:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4101 states to 4101 states and 5549 transitions. [2021-11-19 13:52:02,952 INFO L78 Accepts]: Start accepts. Automaton has 4101 states and 5549 transitions. Word has length 1099 [2021-11-19 13:52:02,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:52:02,954 INFO L470 AbstractCegarLoop]: Abstraction has 4101 states and 5549 transitions. [2021-11-19 13:52:02,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.25) internal successors, (393), 4 states have internal predecessors, (393), 2 states have call successors, (165), 2 states have call predecessors, (165), 2 states have return successors, (165), 2 states have call predecessors, (165), 2 states have call successors, (165) [2021-11-19 13:52:02,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4101 states and 5549 transitions. [2021-11-19 13:52:02,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1114 [2021-11-19 13:52:02,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:52:02,973 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 22, 22, 22, 16, 16, 13, 13, 13, 13, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:52:03,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-11-19 13:52:03,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2021-11-19 13:52:03,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2021-11-19 13:52:03,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:52:03,576 INFO L402 AbstractCegarLoop]: === Iteration 49 === 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)] === [2021-11-19 13:52:03,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:52:03,576 INFO L85 PathProgramCache]: Analyzing trace with hash 102408393, now seen corresponding path program 1 times [2021-11-19 13:52:03,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:52:03,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [426954940] [2021-11-19 13:52:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:52:03,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:52:03,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:52:03,580 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:52:03,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-11-19 13:52:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:52:06,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:52:06,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:52:09,284 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2021-11-19 13:52:09,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:52:11,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2021-11-19 13:52:11,687 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:52:11,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [426954940] [2021-11-19 13:52:11,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [426954940] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:52:11,687 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1930190228] [2021-11-19 13:52:11,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:52:11,688 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:52:11,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:52:11,690 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:52:11,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2021-11-19 13:52:16,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:52:16,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:52:16,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:52:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 754 proven. 5 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2021-11-19 13:52:18,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:52:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5328 trivial. 0 not checked. [2021-11-19 13:52:21,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1930190228] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:52:21,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668728507] [2021-11-19 13:52:21,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:52:21,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:52:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:52:21,221 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:52:21,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-19 13:52:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:52:22,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3686 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:52:22,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:52:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 2332 proven. 0 refuted. 0 times theorem prover too weak. 3001 trivial. 0 not checked. [2021-11-19 13:52:25,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:52:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 5333 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 5317 trivial. 0 not checked. [2021-11-19 13:52:29,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668728507] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:52:29,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 13:52:29,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 5, 5, 8] total 20 [2021-11-19 13:52:29,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153516750] [2021-11-19 13:52:29,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:52:29,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:52:29,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:52:29,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:52:29,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-11-19 13:52:29,170 INFO L87 Difference]: Start difference. First operand 4101 states and 5549 transitions. Second operand has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-19 13:52:30,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:52:30,040 INFO L93 Difference]: Finished difference Result 8203 states and 11130 transitions. [2021-11-19 13:52:30,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 13:52:30,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) Word has length 1113 [2021-11-19 13:52:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:52:30,054 INFO L225 Difference]: With dead ends: 8203 [2021-11-19 13:52:30,054 INFO L226 Difference]: Without dead ends: 4121 [2021-11-19 13:52:30,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6673 GetRequests, 6654 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-11-19 13:52:30,065 INFO L933 BasicCegarLoop]: 2159 mSDtfsCounter, 2 mSDsluCounter, 12947 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15106 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:52:30,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 15106 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:52:30,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2021-11-19 13:52:30,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4117. [2021-11-19 13:52:30,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 2760 states have (on average 1.2130434782608697) internal successors, (3348), 2840 states have internal predecessors, (3348), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-19 13:52:30,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 5567 transitions. [2021-11-19 13:52:30,753 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 5567 transitions. Word has length 1113 [2021-11-19 13:52:30,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:52:30,754 INFO L470 AbstractCegarLoop]: Abstraction has 4117 states and 5567 transitions. [2021-11-19 13:52:30,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 52.75) internal successors, (422), 6 states have internal predecessors, (422), 2 states have call successors, (160), 2 states have call predecessors, (160), 4 states have return successors, (160), 4 states have call predecessors, (160), 2 states have call successors, (160) [2021-11-19 13:52:30,754 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 5567 transitions. [2021-11-19 13:52:30,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1146 [2021-11-19 13:52:30,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:52:30,772 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:52:30,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (83)] Forceful destruction successful, exit code 0 [2021-11-19 13:52:31,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (82)] Ended with exit code 0 [2021-11-19 13:52:31,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Forceful destruction successful, exit code 0 [2021-11-19 13:52:31,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:52:31,373 INFO L402 AbstractCegarLoop]: === Iteration 50 === 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)] === [2021-11-19 13:52:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:52:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash 500676873, now seen corresponding path program 2 times [2021-11-19 13:52:31,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:52:31,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030059827] [2021-11-19 13:52:31,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:52:31,377 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:52:31,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:52:31,378 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:52:31,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-11-19 13:52:49,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:52:49,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:52:50,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 3750 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:52:50,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:52:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 986 proven. 5 refuted. 0 times theorem prover too weak. 4778 trivial. 0 not checked. [2021-11-19 13:52:53,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:52:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5764 trivial. 0 not checked. [2021-11-19 13:52:55,659 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:52:55,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030059827] [2021-11-19 13:52:55,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030059827] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:52:55,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2137609829] [2021-11-19 13:52:55,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:52:55,660 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:52:55,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:52:55,660 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:52:55,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2021-11-19 13:53:15,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:53:15,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:53:16,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 3750 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:53:16,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:53:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 986 proven. 5 refuted. 0 times theorem prover too weak. 4778 trivial. 0 not checked. [2021-11-19 13:53:18,950 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:53:21,450 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5764 trivial. 0 not checked. [2021-11-19 13:53:21,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2137609829] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:53:21,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438556572] [2021-11-19 13:53:21,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:53:21,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:53:21,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:53:21,452 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:53:21,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-19 13:53:29,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:53:29,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:53:29,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 3750 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:53:29,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:53:32,419 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 1508 proven. 0 refuted. 0 times theorem prover too weak. 4261 trivial. 0 not checked. [2021-11-19 13:53:32,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:53:35,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 28 proven. 7 refuted. 0 times theorem prover too weak. 5734 trivial. 0 not checked. [2021-11-19 13:53:35,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438556572] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:53:35,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 13:53:35,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5, 6] total 16 [2021-11-19 13:53:35,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639618645] [2021-11-19 13:53:35,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:53:35,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:53:35,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:53:35,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:53:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:53:35,476 INFO L87 Difference]: Start difference. First operand 4117 states and 5567 transitions. Second operand has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) [2021-11-19 13:53:36,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:53:36,817 INFO L93 Difference]: Finished difference Result 8219 states and 11122 transitions. [2021-11-19 13:53:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 13:53:36,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) Word has length 1145 [2021-11-19 13:53:36,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:53:36,829 INFO L225 Difference]: With dead ends: 8219 [2021-11-19 13:53:36,830 INFO L226 Difference]: Without dead ends: 4121 [2021-11-19 13:53:36,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6865 GetRequests, 6850 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:53:36,837 INFO L933 BasicCegarLoop]: 2165 mSDtfsCounter, 53 mSDsluCounter, 8550 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 10715 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:53:36,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [104 Valid, 10715 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 13:53:36,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4121 states. [2021-11-19 13:53:37,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4121 to 4117. [2021-11-19 13:53:37,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 2760 states have (on average 1.21231884057971) internal successors, (3346), 2838 states have internal predecessors, (3346), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-19 13:53:37,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 5565 transitions. [2021-11-19 13:53:37,389 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 5565 transitions. Word has length 1145 [2021-11-19 13:53:37,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:53:37,390 INFO L470 AbstractCegarLoop]: Abstraction has 4117 states and 5565 transitions. [2021-11-19 13:53:37,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.33333333333333) internal successors, (404), 5 states have internal predecessors, (404), 3 states have call successors, (163), 2 states have call predecessors, (163), 3 states have return successors, (163), 4 states have call predecessors, (163), 3 states have call successors, (163) [2021-11-19 13:53:37,391 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 5565 transitions. [2021-11-19 13:53:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1150 [2021-11-19 13:53:37,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:53:37,407 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:53:37,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2021-11-19 13:53:37,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Forceful destruction successful, exit code 0 [2021-11-19 13:53:37,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (85)] Ended with exit code 0 [2021-11-19 13:53:38,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:53:38,008 INFO L402 AbstractCegarLoop]: === Iteration 51 === 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)] === [2021-11-19 13:53:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:53:38,008 INFO L85 PathProgramCache]: Analyzing trace with hash 936734828, now seen corresponding path program 1 times [2021-11-19 13:53:38,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:53:38,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [264626781] [2021-11-19 13:53:38,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:53:38,011 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:53:38,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:53:38,012 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:53:38,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-11-19 13:53:40,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:53:41,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 3766 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:53:41,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:53:43,940 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 989 proven. 5 refuted. 0 times theorem prover too weak. 4778 trivial. 0 not checked. [2021-11-19 13:53:43,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:53:46,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2021-11-19 13:53:46,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:53:46,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [264626781] [2021-11-19 13:53:46,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [264626781] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:53:46,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1113237506] [2021-11-19 13:53:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:53:46,336 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:53:46,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:53:46,336 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:53:46,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (89)] Waiting until timeout for monitored process [2021-11-19 13:53:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:53:50,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 3766 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:53:50,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:53:53,332 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 989 proven. 5 refuted. 0 times theorem prover too weak. 4778 trivial. 0 not checked. [2021-11-19 13:53:53,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:53:55,651 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5767 trivial. 0 not checked. [2021-11-19 13:53:55,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1113237506] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:53:55,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220404927] [2021-11-19 13:53:55,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:53:55,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:53:55,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:53:55,652 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:53:55,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-19 13:53:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:53:57,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 3766 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 13:53:57,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:53:59,428 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 5656 trivial. 0 not checked. [2021-11-19 13:53:59,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:54:02,147 INFO L134 CoverageAnalysis]: Checked inductivity of 5772 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 5737 trivial. 0 not checked. [2021-11-19 13:54:02,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220404927] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:54:02,147 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 13:54:02,149 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [5, 5, 5, 5] total 16 [2021-11-19 13:54:02,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517499339] [2021-11-19 13:54:02,149 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:54:02,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 13:54:02,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:54:02,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 13:54:02,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-19 13:54:02,151 INFO L87 Difference]: Start difference. First operand 4117 states and 5565 transitions. Second operand has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) [2021-11-19 13:54:03,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:54:03,389 INFO L93 Difference]: Finished difference Result 8405 states and 11374 transitions. [2021-11-19 13:54:03,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:54:03,390 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) Word has length 1149 [2021-11-19 13:54:03,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:54:03,401 INFO L225 Difference]: With dead ends: 8405 [2021-11-19 13:54:03,401 INFO L226 Difference]: Without dead ends: 4307 [2021-11-19 13:54:03,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6890 GetRequests, 6874 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2021-11-19 13:54:03,410 INFO L933 BasicCegarLoop]: 2319 mSDtfsCounter, 786 mSDsluCounter, 11061 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 13380 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 13:54:03,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 13380 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 13:54:03,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4307 states. [2021-11-19 13:54:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4117. [2021-11-19 13:54:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4117 states, 2760 states have (on average 1.2108695652173913) internal successors, (3342), 2838 states have internal predecessors, (3342), 1098 states have call successors, (1098), 247 states have call predecessors, (1098), 258 states have return successors, (1121), 1089 states have call predecessors, (1121), 1098 states have call successors, (1121) [2021-11-19 13:54:03,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4117 states to 4117 states and 5561 transitions. [2021-11-19 13:54:03,976 INFO L78 Accepts]: Start accepts. Automaton has 4117 states and 5561 transitions. Word has length 1149 [2021-11-19 13:54:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:54:03,977 INFO L470 AbstractCegarLoop]: Abstraction has 4117 states and 5561 transitions. [2021-11-19 13:54:03,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.7) internal successors, (377), 8 states have internal predecessors, (377), 4 states have call successors, (157), 2 states have call predecessors, (157), 4 states have return successors, (158), 6 states have call predecessors, (158), 4 states have call successors, (158) [2021-11-19 13:54:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 4117 states and 5561 transitions. [2021-11-19 13:54:03,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2021-11-19 13:54:03,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:54:03,994 INFO L514 BasicCegarLoop]: trace histogram [46, 46, 26, 26, 26, 16, 16, 13, 13, 13, 13, 9, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:54:04,022 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (89)] Ended with exit code 0 [2021-11-19 13:54:04,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (88)] Forceful destruction successful, exit code 0 [2021-11-19 13:54:04,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-11-19 13:54:04,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:54:04,604 INFO L402 AbstractCegarLoop]: === Iteration 52 === 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)] === [2021-11-19 13:54:04,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:54:04,605 INFO L85 PathProgramCache]: Analyzing trace with hash 664656873, now seen corresponding path program 1 times [2021-11-19 13:54:04,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:54:04,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682745739] [2021-11-19 13:54:04,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:54:04,608 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:54:04,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:54:04,608 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:54:04,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-11-19 13:54:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:54:07,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 3777 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:54:07,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:54:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 992 proven. 5 refuted. 0 times theorem prover too weak. 4781 trivial. 0 not checked. [2021-11-19 13:54:10,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:54:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5773 trivial. 0 not checked. [2021-11-19 13:54:12,928 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:54:12,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682745739] [2021-11-19 13:54:12,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682745739] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:54:12,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [535056860] [2021-11-19 13:54:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:54:12,930 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:54:12,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:54:12,931 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:54:12,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (92)] Waiting until timeout for monitored process [2021-11-19 13:54:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:54:17,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 3777 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:54:17,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:54:20,393 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 992 proven. 5 refuted. 0 times theorem prover too weak. 4781 trivial. 0 not checked. [2021-11-19 13:54:20,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:54:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5773 trivial. 0 not checked. [2021-11-19 13:54:22,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [535056860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:54:22,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994476266] [2021-11-19 13:54:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:54:22,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:54:22,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:54:22,802 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:54:22,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-11-19 13:54:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:54:24,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 3777 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 13:54:24,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:54:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 1576 proven. 0 refuted. 0 times theorem prover too weak. 4202 trivial. 0 not checked. [2021-11-19 13:54:27,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:54:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5778 backedges. 36 proven. 39 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2021-11-19 13:54:30,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994476266] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:54:30,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 13:54:30,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 5, 5, 5, 6] total 15 [2021-11-19 13:54:30,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117219663] [2021-11-19 13:54:30,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:54:30,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:54:30,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:54:30,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:54:30,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2021-11-19 13:54:30,421 INFO L87 Difference]: Start difference. First operand 4117 states and 5561 transitions. Second operand has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 3 states have call successors, (162), 2 states have call predecessors, (162), 3 states have return successors, (162), 3 states have call predecessors, (162), 3 states have call successors, (162) [2021-11-19 13:54:31,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:54:31,346 INFO L93 Difference]: Finished difference Result 6584 states and 8887 transitions. [2021-11-19 13:54:31,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 13:54:31,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 3 states have call successors, (162), 2 states have call predecessors, (162), 3 states have return successors, (162), 3 states have call predecessors, (162), 3 states have call successors, (162) Word has length 1153 [2021-11-19 13:54:31,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:54:31,348 INFO L225 Difference]: With dead ends: 6584 [2021-11-19 13:54:31,348 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 13:54:31,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6915 GetRequests, 6900 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-11-19 13:54:31,359 INFO L933 BasicCegarLoop]: 2257 mSDtfsCounter, 180 mSDsluCounter, 8766 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 11023 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 13:54:31,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 11023 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 13:54:31,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 13:54:31,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 13:54:31,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:54:31,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 13:54:31,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1153 [2021-11-19 13:54:31,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:54:31,362 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 13:54:31,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 67.5) internal successors, (405), 6 states have internal predecessors, (405), 3 states have call successors, (162), 2 states have call predecessors, (162), 3 states have return successors, (162), 3 states have call predecessors, (162), 3 states have call successors, (162) [2021-11-19 13:54:31,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 13:54:31,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 13:54:31,365 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (26 of 27 remaining) [2021-11-19 13:54:31,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (25 of 27 remaining) [2021-11-19 13:54:31,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 27 remaining) [2021-11-19 13:54:31,366 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 27 remaining) [2021-11-19 13:54:31,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 27 remaining) [2021-11-19 13:54:31,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 27 remaining) [2021-11-19 13:54:31,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 27 remaining) [2021-11-19 13:54:31,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION (19 of 27 remaining) [2021-11-19 13:54:31,367 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 27 remaining) [2021-11-19 13:54:31,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION (17 of 27 remaining) [2021-11-19 13:54:31,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 27 remaining) [2021-11-19 13:54:31,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 27 remaining) [2021-11-19 13:54:31,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 27 remaining) [2021-11-19 13:54:31,368 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 27 remaining) [2021-11-19 13:54:31,369 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 27 remaining) [2021-11-19 13:54:31,369 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 27 remaining) [2021-11-19 13:54:31,369 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 27 remaining) [2021-11-19 13:54:31,369 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 27 remaining) [2021-11-19 13:54:31,369 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 27 remaining) [2021-11-19 13:54:31,370 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 27 remaining) [2021-11-19 13:54:31,370 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 27 remaining) [2021-11-19 13:54:31,370 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 27 remaining) [2021-11-19 13:54:31,370 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 27 remaining) [2021-11-19 13:54:31,370 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 27 remaining) [2021-11-19 13:54:31,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 27 remaining) [2021-11-19 13:54:31,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 27 remaining) [2021-11-19 13:54:31,371 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 27 remaining) [2021-11-19 13:54:31,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (91)] Forceful destruction successful, exit code 0 [2021-11-19 13:54:31,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Ended with exit code 0 [2021-11-19 13:54:31,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (92)] Forceful destruction successful, exit code 0 [2021-11-19 13:54:31,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51f73c6f-67ed-4802-9a32-0b75a17750a4/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:54:31,986 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.