./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P --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 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:47:03,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:47:03,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:47:03,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:47:03,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:47:03,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:47:03,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:47:03,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:47:03,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:47:03,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:47:03,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:47:03,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:47:03,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:47:03,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:47:03,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:47:03,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:47:03,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:47:03,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:47:03,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:47:03,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:47:03,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:47:03,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:47:03,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:47:03,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:47:03,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:47:03,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:47:03,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:47:03,986 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:47:03,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:47:03,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:47:03,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:47:03,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:47:03,992 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:47:03,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:47:03,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:47:03,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:47:03,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:47:03,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:47:03,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:47:03,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:47:03,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:47:03,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:47:04,034 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:47:04,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:47:04,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:47:04,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:47:04,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:47:04,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:47:04,036 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:47:04,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:47:04,036 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:47:04,036 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:47:04,036 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:47:04,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:47:04,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:47:04,037 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:47:04,037 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:47:04,037 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:47:04,038 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:47:04,038 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:47:04,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:47:04,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:47:04,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:47:04,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:47:04,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:47:04,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:47:04,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:47:04,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:47:04,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:47:04,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:47:04,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:47:04,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:04,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:47:04,041 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:47:04,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:47:04,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:47:04,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:47:04,042 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:47:04,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:47:04,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:47:04,044 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_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-20 22:47:04,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:47:04,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:47:04,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:47:04,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:47:04,405 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:47:04,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 22:47:04,468 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/data/f30b9fb45/bc8aae18487f4bedb3ce446c2630b37b/FLAG13d71a582 [2021-11-20 22:47:05,819 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:47:05,844 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 22:47:05,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/data/f30b9fb45/bc8aae18487f4bedb3ce446c2630b37b/FLAG13d71a582 [2021-11-20 22:47:06,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/data/f30b9fb45/bc8aae18487f4bedb3ce446c2630b37b [2021-11-20 22:47:06,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:47:06,385 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:47:06,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:06,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:47:06,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:47:06,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:06" (1/1) ... [2021-11-20 22:47:06,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ed7e2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:06, skipping insertion in model container [2021-11-20 22:47:06,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:47:06" (1/1) ... [2021-11-20 22:47:06,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:47:06,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:47:16,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-20 22:47:16,316 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_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-20 22:47:16,317 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_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-20 22:47:16,318 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_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-20 22:47:16,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:16,523 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:47:17,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[839999,840012] [2021-11-20 22:47:17,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840146,840159] [2021-11-20 22:47:17,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840285,840298] [2021-11-20 22:47:17,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[840443,840456] [2021-11-20 22:47:17,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:47:18,189 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:47:18,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18 WrapperNode [2021-11-20 22:47:18,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:47:18,191 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:18,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:47:18,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:47:18,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:18,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:19,127 INFO L137 Inliner]: procedures = 983, calls = 12456, calls flagged for inlining = 592, calls inlined = 569, statements flattened = 22508 [2021-11-20 22:47:19,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:47:19,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:47:19,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:47:19,130 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:47:19,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:19,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:19,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:19,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:19,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:20,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:20,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:20,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:47:20,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:47:20,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:47:20,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:47:20,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (1/1) ... [2021-11-20 22:47:20,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:47:20,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:47:20,378 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:47:20,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7251d4af-8992-423d-8da0-b808c49e1ddd/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:47:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_coalesce [2021-11-20 22:47:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_coalesce [2021-11-20 22:47:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-20 22:47:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-20 22:47:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_owner [2021-11-20 22:47:20,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_owner [2021-11-20 22:47:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 22:47:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 22:47:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_watchdog [2021-11-20 22:47:20,425 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_watchdog [2021-11-20 22:47:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_filter [2021-11-20 22:47:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_filter [2021-11-20 22:47:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:47:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:47:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_sset_count [2021-11-20 22:47:20,426 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_sset_count [2021-11-20 22:47:20,426 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-20 22:47:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-20 22:47:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-20 22:47:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-20 22:47:20,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 22:47:20,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-20 22:47:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-20 22:47:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-20 22:47:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-20 22:47:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-20 22:47:20,428 INFO L130 BoogieDeclarations]: Found specification of procedure ehn_desc_tx_set_on_chain [2021-11-20 22:47:20,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ehn_desc_tx_set_on_chain [2021-11-20 22:47:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-20 22:47:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-20 22:47:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 22:47:20,429 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 22:47:20,429 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-20 22:47:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-20 22:47:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-20 22:47:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-20 22:47:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 22:47:20,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 22:47:20,430 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-20 22:47:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-20 22:47:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable_eee_mode [2021-11-20 22:47:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable_eee_mode [2021-11-20 22:47:20,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-20 22:47:20,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-20 22:47:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 22:47:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 22:47:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-20 22:47:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-20 22:47:20,432 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_operation_mode [2021-11-20 22:47:20,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_operation_mode [2021-11-20 22:47:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_ctrl_ane [2021-11-20 22:47:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_ctrl_ane [2021-11-20 22:47:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:47:20,433 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:47:20,433 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-20 22:47:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-20 22:47:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_16kib_bfsize [2021-11-20 22:47:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_16kib_bfsize [2021-11-20 22:47:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_timer [2021-11-20 22:47:20,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_timer [2021-11-20 22:47:20,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:47:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:47:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:47:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-20 22:47:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-20 22:47:20,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:47:20,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:47:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_release_tx_desc [2021-11-20 22:47:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_release_tx_desc [2021-11-20 22:47:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_dump_regs [2021-11-20 22:47:20,436 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_dump_regs [2021-11-20 22:47:20,436 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:47:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:47:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_mac_regs [2021-11-20 22:47:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_mac_regs [2021-11-20 22:47:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_ls [2021-11-20 22:47:20,437 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_ls [2021-11-20 22:47:20,437 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_close_tx_desc [2021-11-20 22:47:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_close_tx_desc [2021-11-20 22:47:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-20 22:47:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-20 22:47:20,438 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_core_init [2021-11-20 22:47:20,438 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_core_init [2021-11-20 22:47:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-20 22:47:20,439 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-20 22:47:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:47:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 22:47:20,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 22:47:20,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 22:47:20,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 22:47:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-20 22:47:20,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-20 22:47:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-20 22:47:20,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-20 22:47:20,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-20 22:47:20,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-20 22:47:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-20 22:47:20,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-20 22:47:20,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-20 22:47:20,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-20 22:47:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-20 22:47:20,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-20 22:47:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-20 22:47:20,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-20 22:47:20,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_8 [2021-11-20 22:47:20,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_8 [2021-11-20 22:47:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:47:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:47:20,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:47:20,443 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:47:20,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:47:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_ipc_enable [2021-11-20 22:47:20,444 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_ipc_enable [2021-11-20 22:47:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:47:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_status [2021-11-20 22:47:20,444 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_status [2021-11-20 22:47:20,444 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 22:47:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 22:47:20,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 22:47:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-20 22:47:20,445 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-20 22:47:20,445 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-20 22:47:20,446 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-20 22:47:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_adv [2021-11-20 22:47:20,446 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_adv [2021-11-20 22:47:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-20 22:47:20,446 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-20 22:47:20,446 INFO L130 BoogieDeclarations]: Found specification of procedure print_pkt [2021-11-20 22:47:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure print_pkt [2021-11-20 22:47:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:47:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-20 22:47:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_fix_mac_speed [2021-11-20 22:47:20,447 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_fix_mac_speed [2021-11-20 22:47:20,447 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-20 22:47:20,448 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-20 22:47:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 22:47:20,448 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 22:47:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_addend [2021-11-20 22:47:20,448 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_addend [2021-11-20 22:47:20,448 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_transmission [2021-11-20 22:47:20,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_transmission [2021-11-20 22:47:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 22:47:20,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 22:47:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-20 22:47:20,449 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-20 22:47:20,449 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-20 22:47:20,450 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-20 22:47:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_pauseparam [2021-11-20 22:47:20,450 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_pauseparam [2021-11-20 22:47:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_free_rx_buffers [2021-11-20 22:47:20,450 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_free_rx_buffers [2021-11-20 22:47:20,450 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-20 22:47:20,450 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-20 22:47:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_dma_chain [2021-11-20 22:47:20,451 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_dma_chain [2021-11-20 22:47:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_frame_len [2021-11-20 22:47:20,451 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_frame_len [2021-11-20 22:47:20,451 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_rx_desc [2021-11-20 22:47:20,451 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_rx_desc [2021-11-20 22:47:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-20 22:47:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-20 22:47:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_rx_desc [2021-11-20 22:47:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_rx_desc [2021-11-20 22:47:20,452 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac_addr [2021-11-20 22:47:20,452 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac_addr [2021-11-20 22:47:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:47:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:47:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_status [2021-11-20 22:47:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_status [2021-11-20 22:47:20,453 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 22:47:20,453 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 22:47:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_reset_eee_mode [2021-11-20 22:47:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_reset_eee_mode [2021-11-20 22:47:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_enable_tx_timestamp [2021-11-20 22:47:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_enable_tx_timestamp [2021-11-20 22:47:20,454 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-20 22:47:20,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-20 22:47:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_rx_owner [2021-11-20 22:47:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_rx_owner [2021-11-20 22:47:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:47:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 22:47:20,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-20 22:47:20,455 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_display_ring [2021-11-20 22:47:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_display_ring [2021-11-20 22:47:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-11-20 22:47:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-11-20 22:47:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-20 22:47:20,456 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-20 22:47:20,456 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-20 22:47:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_timestamp_status [2021-11-20 22:47:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_timestamp_status [2021-11-20 22:47:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 22:47:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 22:47:20,457 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_pls [2021-11-20 22:47:20,457 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_pls [2021-11-20 22:47:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_enable_tx_timestamp [2021-11-20 22:47:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_enable_tx_timestamp [2021-11-20 22:47:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_rx_ipc_enable [2021-11-20 22:47:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_rx_ipc_enable [2021-11-20 22:47:20,458 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-20 22:47:20,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-20 22:47:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-20 22:47:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-20 22:47:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-20 22:47:20,459 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-20 22:47:20,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:47:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:47:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-20 22:47:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-20 22:47:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-20 22:47:20,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-20 22:47:20,460 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-20 22:47:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-20 22:47:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-20 22:47:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-20 22:47:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-20 22:47:20,461 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-20 22:47:20,461 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 22:47:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 22:47:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:47:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_umac_addr [2021-11-20 22:47:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_umac_addr [2021-11-20 22:47:20,462 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_len [2021-11-20 22:47:20,462 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_len [2021-11-20 22:47:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:47:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:47:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:47:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-20 22:47:20,463 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-20 22:47:20,463 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_pmt [2021-11-20 22:47:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_pmt [2021-11-20 22:47:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_timestamp_status [2021-11-20 22:47:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_timestamp_status [2021-11-20 22:47:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-11-20 22:47:20,464 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-11-20 22:47:20,464 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-20 22:47:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-20 22:47:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_irq [2021-11-20 22:47:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_irq [2021-11-20 22:47:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-20 22:47:20,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-20 22:47:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-20 22:47:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-20 22:47:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_systime [2021-11-20 22:47:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_systime [2021-11-20 22:47:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 22:47:20,469 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 22:47:20,469 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:47:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:47:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-20 22:47:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-20 22:47:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_time [2021-11-20 22:47:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_time [2021-11-20 22:47:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_core_init [2021-11-20 22:47:20,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_core_init [2021-11-20 22:47:20,470 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_hw_feature [2021-11-20 22:47:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_hw_feature [2021-11-20 22:47:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setsettings [2021-11-20 22:47:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setsettings [2021-11-20 22:47:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-20 22:47:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-20 22:47:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 22:47:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 22:47:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-20 22:47:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-20 22:47:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_rx_owner [2021-11-20 22:47:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_rx_owner [2021-11-20 22:47:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 22:47:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 22:47:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_ls [2021-11-20 22:47:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_ls [2021-11-20 22:47:20,472 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-20 22:47:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-20 22:47:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:47:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2021-11-20 22:47:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2021-11-20 22:47:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_filter [2021-11-20 22:47:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_filter [2021-11-20 22:47:20,473 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-20 22:47:20,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-20 22:47:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:47:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:47:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_jumbo_frm [2021-11-20 22:47:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_jumbo_frm [2021-11-20 22:47:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_freq [2021-11-20 22:47:20,474 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_freq [2021-11-20 22:47:20,474 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2021-11-20 22:47:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2021-11-20 22:47:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-20 22:47:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-20 22:47:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-20 22:47:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-20 22:47:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-20 22:47:20,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-20 22:47:20,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tstamp_tx [2021-11-20 22:47:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tstamp_tx [2021-11-20 22:47:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_time [2021-11-20 22:47:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_time [2021-11-20 22:47:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-20 22:47:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-20 22:47:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure phy_stop [2021-11-20 22:47:20,476 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_stop [2021-11-20 22:47:20,476 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 22:47:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-20 22:47:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_release_tx_desc [2021-11-20 22:47:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_release_tx_desc [2021-11-20 22:47:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_timestamp_status [2021-11-20 22:47:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_timestamp_status [2021-11-20 22:47:20,477 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_mode [2021-11-20 22:47:20,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_mode [2021-11-20 22:47:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-20 22:47:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-20 22:47:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_gregs [2021-11-20 22:47:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_gregs [2021-11-20 22:47:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-20 22:47:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-20 22:47:20,478 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_tx_owner [2021-11-20 22:47:20,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_tx_owner [2021-11-20 22:47:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-20 22:47:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-20 22:47:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:47:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:47:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_avail [2021-11-20 22:47:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_avail [2021-11-20 22:47:20,479 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-20 22:47:20,479 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-20 22:47:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_len [2021-11-20 22:47:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_len [2021-11-20 22:47:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:47:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:47:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-20 22:47:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-20 22:47:20,480 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-20 22:47:20,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-20 22:47:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-20 22:47:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-20 22:47:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_status [2021-11-20 22:47:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_status [2021-11-20 22:47:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac [2021-11-20 22:47:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac [2021-11-20 22:47:20,481 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-20 22:47:20,481 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-20 22:47:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 22:47:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 22:47:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_desc3 [2021-11-20 22:47:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_desc3 [2021-11-20 22:47:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-11-20 22:47:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-11-20 22:47:20,482 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-20 22:47:20,482 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-20 22:47:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:47:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:47:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-20 22:47:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-20 22:47:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:47:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:47:20,483 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_mac_addr [2021-11-20 22:47:20,483 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_mac_addr [2021-11-20 22:47:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_flush_tx_fifo [2021-11-20 22:47:20,484 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_flush_tx_fifo [2021-11-20 22:47:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:47:20,484 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-20 22:47:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-20 22:47:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-20 22:47:20,485 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-20 22:47:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-20 22:47:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-20 22:47:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_owner [2021-11-20 22:47:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_owner [2021-11-20 22:47:20,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-20 22:47:20,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-20 22:47:20,492 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ts_info [2021-11-20 22:47:20,493 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ts_info [2021-11-20 22:47:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setmsglevel [2021-11-20 22:47:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setmsglevel [2021-11-20 22:47:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 22:47:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 22:47:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_get_regs_len [2021-11-20 22:47:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_get_regs_len [2021-11-20 22:47:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_prepare_tx_desc [2021-11-20 22:47:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_prepare_tx_desc [2021-11-20 22:47:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:47:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 22:47:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 22:47:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_timestamp_status [2021-11-20 22:47:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_timestamp_status [2021-11-20 22:47:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_hw_tstamping [2021-11-20 22:47:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_hw_tstamping [2021-11-20 22:47:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_flow_ctrl [2021-11-20 22:47:20,495 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_flow_ctrl [2021-11-20 22:47:20,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-20 22:47:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-20 22:47:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_link [2021-11-20 22:47:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_link [2021-11-20 22:47:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_eee_init [2021-11-20 22:47:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_eee_init [2021-11-20 22:47:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 22:47:20,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 22:47:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:47:20,496 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-20 22:47:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-20 22:47:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:47:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:47:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_init [2021-11-20 22:47:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_init [2021-11-20 22:47:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:47:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:47:20,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 22:47:20,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 22:47:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_tx_owner [2021-11-20 22:47:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_tx_owner [2021-11-20 22:47:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 22:47:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 22:47:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_systime [2021-11-20 22:47:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_systime [2021-11-20 22:47:20,498 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-20 22:47:20,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-20 22:47:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-20 22:47:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-20 22:47:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_tx [2021-11-20 22:47:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_tx [2021-11-20 22:47:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_clean [2021-11-20 22:47:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_clean [2021-11-20 22:47:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-20 22:47:20,499 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-20 22:47:20,499 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_interrupt [2021-11-20 22:47:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_interrupt [2021-11-20 22:47:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_get_umac_addr [2021-11-20 22:47:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_get_umac_addr [2021-11-20 22:47:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-20 22:47:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-20 22:47:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-20 22:47:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-20 22:47:20,500 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-20 22:47:20,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-20 22:47:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_ext_status [2021-11-20 22:47:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_ext_status [2021-11-20 22:47:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-20 22:47:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-20 22:47:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_timestamp [2021-11-20 22:47:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_timestamp [2021-11-20 22:47:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-20 22:47:20,501 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-20 22:47:20,501 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_rx [2021-11-20 22:47:20,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_rx [2021-11-20 22:47:20,502 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-20 22:47:20,502 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-20 22:47:20,502 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_diagnostic_fr [2021-11-20 22:47:20,502 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_diagnostic_fr [2021-11-20 22:47:20,502 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-20 22:47:20,502 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-20 22:47:20,502 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-20 22:47:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-20 22:47:20,503 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3 [2021-11-20 22:47:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3 [2021-11-20 22:47:20,503 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:47:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:47:20,503 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable [2021-11-20 22:47:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable [2021-11-20 22:47:20,503 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-20 22:47:20,503 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-20 22:47:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:47:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:47:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_tx_desc [2021-11-20 22:47:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_tx_desc [2021-11-20 22:47:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_tx_desc [2021-11-20 22:47:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_tx_desc [2021-11-20 22:47:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_close_tx_desc [2021-11-20 22:47:20,504 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_close_tx_desc [2021-11-20 22:47:20,504 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_irq_status [2021-11-20 22:47:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_irq_status [2021-11-20 22:47:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_wol [2021-11-20 22:47:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_wol [2021-11-20 22:47:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_systime [2021-11-20 22:47:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_systime [2021-11-20 22:47:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_umac_addr [2021-11-20 22:47:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_umac_addr [2021-11-20 22:47:20,505 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_clear_tx_ic [2021-11-20 22:47:20,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_clear_tx_ic [2021-11-20 22:47:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-20 22:47:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-20 22:47:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ioctl [2021-11-20 22:47:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ioctl [2021-11-20 22:47:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-20 22:47:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-20 22:47:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-20 22:47:20,506 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-20 22:47:20,506 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_unregister_platform [2021-11-20 22:47:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_unregister_platform [2021-11-20 22:47:20,507 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_irq_status [2021-11-20 22:47:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_irq_status [2021-11-20 22:47:20,507 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_timestamp [2021-11-20 22:47:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_timestamp [2021-11-20 22:47:20,507 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_owner [2021-11-20 22:47:20,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_owner [2021-11-20 22:47:20,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:47:20,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:47:20,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:47:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_rx_mode [2021-11-20 22:47:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_rx_mode [2021-11-20 22:47:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 22:47:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 22:47:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-20 22:47:20,509 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-20 22:47:20,509 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-20 22:47:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-20 22:47:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_display_ring [2021-11-20 22:47:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_display_ring [2021-11-20 22:47:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-20 22:47:20,593 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-20 22:47:20,593 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getdrvinfo [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getdrvinfo [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_sub_second_increment [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_sub_second_increment [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_check_if_running [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_check_if_running [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_umac_addr [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_umac_addr [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_get_eee [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_get_eee [2021-11-20 22:47:20,594 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_pmt [2021-11-20 22:47:20,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_pmt [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_refill_desc3 [2021-11-20 22:47:20,595 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_refill_desc3 [2021-11-20 22:47:20,595 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clear_descriptors [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clear_descriptors [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_flow_ctrl [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_flow_ctrl [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_dma_cap_open [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_dma_cap_open [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 22:47:20,596 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2021-11-20 22:47:20,596 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-20 22:47:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-20 22:47:20,597 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_status [2021-11-20 22:47:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_status [2021-11-20 22:47:20,598 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_rx [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_rx [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_is_jumbo_frm [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_is_jumbo_frm [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_ring_open [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_ring_open [2021-11-20 22:47:20,599 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_owner [2021-11-20 22:47:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_owner [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq_byname [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq_byname [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_tx [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_tx [2021-11-20 22:47:20,600 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-20 22:47:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_prepare_tx_desc [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_prepare_tx_desc [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_frame_len [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_frame_len [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_tx_set_on_chain [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_tx_set_on_chain [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_pauseparam [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_pauseparam [2021-11-20 22:47:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:47:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_dma_regs [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_dma_regs [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_change_mtu [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_change_mtu [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 22:47:20,602 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 22:47:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_coalesce [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_coalesce [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_disable_dma_irq [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_disable_dma_irq [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_wol [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_wol [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_clear_tx_ic [2021-11-20 22:47:20,603 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_clear_tx_ic [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:47:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_time [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_time [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-20 22:47:20,604 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-20 22:47:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-20 22:47:20,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-20 22:47:22,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:47:22,746 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:47:23,049 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:47:53,821 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 22:47:54,219 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:48:01,096 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:48:01,096 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-20 22:48:01,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:48:01 BoogieIcfgContainer [2021-11-20 22:48:01,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:48:01,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:48:01,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:48:01,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:48:01,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:47:06" (1/3) ... [2021-11-20 22:48:01,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf98bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:48:01, skipping insertion in model container [2021-11-20 22:48:01,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:47:18" (2/3) ... [2021-11-20 22:48:01,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf98bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:48:01, skipping insertion in model container [2021-11-20 22:48:01,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:48:01" (3/3) ... [2021-11-20 22:48:01,113 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-20 22:48:01,118 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:48:01,118 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-20 22:48:01,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:48:01,210 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 [2021-11-20 22:48:01,211 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-20 22:48:01,331 INFO L276 IsEmpty]: Start isEmpty. Operand has 5043 states, 3040 states have (on average 1.3217105263157896) internal successors, (4018), 3137 states have internal predecessors, (4018), 1686 states have call successors, (1686), 316 states have call predecessors, (1686), 315 states have return successors, (1672), 1614 states have call predecessors, (1672), 1672 states have call successors, (1672) [2021-11-20 22:48:01,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-11-20 22:48:01,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:01,390 INFO L514 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:01,391 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:01,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1089309642, now seen corresponding path program 1 times [2021-11-20 22:48:01,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:01,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38007347] [2021-11-20 22:48:01,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:01,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-20 22:48:03,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:03,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38007347] [2021-11-20 22:48:03,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38007347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:03,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:03,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:48:03,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679151713] [2021-11-20 22:48:03,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:03,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:48:03,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:03,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:48:03,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:03,854 INFO L87 Difference]: Start difference. First operand has 5043 states, 3040 states have (on average 1.3217105263157896) internal successors, (4018), 3137 states have internal predecessors, (4018), 1686 states have call successors, (1686), 316 states have call predecessors, (1686), 315 states have return successors, (1672), 1614 states have call predecessors, (1672), 1672 states have call successors, (1672) Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2021-11-20 22:48:08,253 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:19,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:19,077 INFO L93 Difference]: Finished difference Result 14711 states and 21535 transitions. [2021-11-20 22:48:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:48:19,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) Word has length 819 [2021-11-20 22:48:19,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:19,226 INFO L225 Difference]: With dead ends: 14711 [2021-11-20 22:48:19,226 INFO L226 Difference]: Without dead ends: 9811 [2021-11-20 22:48:19,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:19,270 INFO L933 BasicCegarLoop]: 7804 mSDtfsCounter, 7027 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 13999 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:19,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7031 Valid, 13999 Invalid, 2309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2291 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2021-11-20 22:48:19,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9811 states. [2021-11-20 22:48:20,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9811 to 9808. [2021-11-20 22:48:20,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9808 states, 5940 states have (on average 1.321043771043771) internal successors, (7847), 6132 states have internal predecessors, (7847), 3240 states have call successors, (3240), 628 states have call predecessors, (3240), 626 states have return successors, (3237), 3120 states have call predecessors, (3237), 3237 states have call successors, (3237) [2021-11-20 22:48:20,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 14324 transitions. [2021-11-20 22:48:20,292 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 14324 transitions. Word has length 819 [2021-11-20 22:48:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:20,301 INFO L470 AbstractCegarLoop]: Abstraction has 9808 states and 14324 transitions. [2021-11-20 22:48:20,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (84), 3 states have call predecessors, (84), 3 states have call successors, (84) [2021-11-20 22:48:20,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 14324 transitions. [2021-11-20 22:48:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2021-11-20 22:48:20,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:20,351 INFO L514 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:20,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:48:20,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:20,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1561475438, now seen corresponding path program 1 times [2021-11-20 22:48:20,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:20,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401341231] [2021-11-20 22:48:20,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:20,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-20 22:48:22,154 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:22,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401341231] [2021-11-20 22:48:22,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401341231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:22,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:22,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:48:22,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340809070] [2021-11-20 22:48:22,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:22,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:48:22,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:22,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:48:22,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:22,159 INFO L87 Difference]: Start difference. First operand 9808 states and 14324 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-20 22:48:25,124 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:28,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:31,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:34,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:39,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:39,150 INFO L93 Difference]: Finished difference Result 26553 states and 38531 transitions. [2021-11-20 22:48:39,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:48:39,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) Word has length 836 [2021-11-20 22:48:39,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:39,303 INFO L225 Difference]: With dead ends: 26553 [2021-11-20 22:48:39,304 INFO L226 Difference]: Without dead ends: 16906 [2021-11-20 22:48:39,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:39,373 INFO L933 BasicCegarLoop]: 7907 mSDtfsCounter, 6943 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6949 SdHoareTripleChecker+Valid, 14087 SdHoareTripleChecker+Invalid, 2330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:39,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6949 Valid, 14087 Invalid, 2330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2316 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2021-11-20 22:48:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16906 states. [2021-11-20 22:48:40,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16906 to 16884. [2021-11-20 22:48:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16884 states, 10161 states have (on average 1.3118787520913295) internal successors, (13330), 10534 states have internal predecessors, (13330), 5538 states have call successors, (5538), 1186 states have call predecessors, (5538), 1183 states have return successors, (5539), 5300 states have call predecessors, (5539), 5535 states have call successors, (5539) [2021-11-20 22:48:40,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16884 states to 16884 states and 24407 transitions. [2021-11-20 22:48:40,582 INFO L78 Accepts]: Start accepts. Automaton has 16884 states and 24407 transitions. Word has length 836 [2021-11-20 22:48:40,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:48:40,584 INFO L470 AbstractCegarLoop]: Abstraction has 16884 states and 24407 transitions. [2021-11-20 22:48:40,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (84), 2 states have call predecessors, (84), 1 states have return successors, (83), 3 states have call predecessors, (83), 3 states have call successors, (83) [2021-11-20 22:48:40,585 INFO L276 IsEmpty]: Start isEmpty. Operand 16884 states and 24407 transitions. [2021-11-20 22:48:40,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2021-11-20 22:48:40,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:48:40,632 INFO L514 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 80, 80, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:48:40,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:48:40,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:48:40,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:48:40,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1467331920, now seen corresponding path program 1 times [2021-11-20 22:48:40,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:48:40,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55293441] [2021-11-20 22:48:40,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:48:40,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:48:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:48:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-20 22:48:42,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:48:42,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55293441] [2021-11-20 22:48:42,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55293441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:48:42,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:48:42,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:48:42,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973961887] [2021-11-20 22:48:42,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:48:42,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:48:42,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:48:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:48:42,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:42,140 INFO L87 Difference]: Start difference. First operand 16884 states and 24407 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2021-11-20 22:48:45,928 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:47,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:51,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:53,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:48:58,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:48:58,693 INFO L93 Difference]: Finished difference Result 43052 states and 62343 transitions. [2021-11-20 22:48:58,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:48:58,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) Word has length 851 [2021-11-20 22:48:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:48:58,848 INFO L225 Difference]: With dead ends: 43052 [2021-11-20 22:48:58,848 INFO L226 Difference]: Without dead ends: 26329 [2021-11-20 22:48:58,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:48:58,933 INFO L933 BasicCegarLoop]: 7764 mSDtfsCounter, 6946 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 13938 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:48:58,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6950 Valid, 13938 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2287 Invalid, 2 Unknown, 0 Unchecked, 15.6s Time] [2021-11-20 22:48:58,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26329 states. [2021-11-20 22:49:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26329 to 26307. [2021-11-20 22:49:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26307 states, 15896 states have (on average 1.3154252642174131) internal successors, (20910), 16468 states have internal predecessors, (20910), 8600 states have call successors, (8600), 1814 states have call predecessors, (8600), 1809 states have return successors, (8601), 8235 states have call predecessors, (8601), 8597 states have call successors, (8601) [2021-11-20 22:49:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26307 states to 26307 states and 38111 transitions. [2021-11-20 22:49:00,895 INFO L78 Accepts]: Start accepts. Automaton has 26307 states and 38111 transitions. Word has length 851 [2021-11-20 22:49:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:00,896 INFO L470 AbstractCegarLoop]: Abstraction has 26307 states and 38111 transitions. [2021-11-20 22:49:00,897 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 3 states have call predecessors, (86), 3 states have call successors, (86) [2021-11-20 22:49:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 26307 states and 38111 transitions. [2021-11-20 22:49:00,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2021-11-20 22:49:00,920 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:00,921 INFO L514 BasicCegarLoop]: trace histogram [83, 80, 80, 80, 80, 80, 80, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:00,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:49:00,921 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:00,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:00,922 INFO L85 PathProgramCache]: Analyzing trace with hash -527498028, now seen corresponding path program 1 times [2021-11-20 22:49:00,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:00,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028688633] [2021-11-20 22:49:00,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:00,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:02,743 INFO L134 CoverageAnalysis]: Checked inductivity of 25770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25770 trivial. 0 not checked. [2021-11-20 22:49:02,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:02,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028688633] [2021-11-20 22:49:02,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028688633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:02,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:02,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 22:49:02,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600932743] [2021-11-20 22:49:02,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:02,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 22:49:02,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:02,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 22:49:02,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 22:49:02,746 INFO L87 Difference]: Start difference. First operand 26307 states and 38111 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-20 22:49:06,113 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:09,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:15,859 INFO L93 Difference]: Finished difference Result 26307 states and 38111 transitions. [2021-11-20 22:49:15,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 22:49:15,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 857 [2021-11-20 22:49:15,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:16,013 INFO L225 Difference]: With dead ends: 26307 [2021-11-20 22:49:16,014 INFO L226 Difference]: Without dead ends: 26288 [2021-11-20 22:49:16,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:16,037 INFO L933 BasicCegarLoop]: 6202 mSDtfsCounter, 7129 mSDsluCounter, 7323 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7133 SdHoareTripleChecker+Valid, 12404 SdHoareTripleChecker+Invalid, 2246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:16,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7133 Valid, 12404 Invalid, 2246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2245 Invalid, 1 Unknown, 0 Unchecked, 12.4s Time] [2021-11-20 22:49:16,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26288 states. [2021-11-20 22:49:17,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26288 to 26288. [2021-11-20 22:49:17,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26288 states, 15890 states have (on average 1.314789175582127) internal successors, (20892), 16456 states have internal predecessors, (20892), 8590 states have call successors, (8590), 1811 states have call predecessors, (8590), 1807 states have return successors, (8594), 8231 states have call predecessors, (8594), 8590 states have call successors, (8594) [2021-11-20 22:49:17,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26288 states to 26288 states and 38076 transitions. [2021-11-20 22:49:17,791 INFO L78 Accepts]: Start accepts. Automaton has 26288 states and 38076 transitions. Word has length 857 [2021-11-20 22:49:17,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:17,792 INFO L470 AbstractCegarLoop]: Abstraction has 26288 states and 38076 transitions. [2021-11-20 22:49:17,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2021-11-20 22:49:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand 26288 states and 38076 transitions. [2021-11-20 22:49:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2021-11-20 22:49:17,828 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:17,829 INFO L514 BasicCegarLoop]: trace histogram [83, 82, 82, 82, 82, 82, 82, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:17,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:49:17,829 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:17,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:17,830 INFO L85 PathProgramCache]: Analyzing trace with hash 525900655, now seen corresponding path program 1 times [2021-11-20 22:49:17,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:17,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090970875] [2021-11-20 22:49:17,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:17,831 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 26732 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26732 trivial. 0 not checked. [2021-11-20 22:49:19,374 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:19,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090970875] [2021-11-20 22:49:19,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090970875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:19,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:19,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:19,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654778256] [2021-11-20 22:49:19,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:19,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:19,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:19,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:19,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:19,378 INFO L87 Difference]: Start difference. First operand 26288 states and 38076 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) [2021-11-20 22:49:22,681 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:24,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:29,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:34,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:34,954 INFO L93 Difference]: Finished difference Result 71282 states and 103409 transitions. [2021-11-20 22:49:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:49:34,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) Word has length 876 [2021-11-20 22:49:34,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:35,211 INFO L225 Difference]: With dead ends: 71282 [2021-11-20 22:49:35,212 INFO L226 Difference]: Without dead ends: 45155 [2021-11-20 22:49:35,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:35,343 INFO L933 BasicCegarLoop]: 7755 mSDtfsCounter, 6966 mSDsluCounter, 7272 mSDsCounter, 0 mSdLazyCounter, 2273 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 13920 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2273 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:35,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 13920 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2273 Invalid, 1 Unknown, 0 Unchecked, 14.4s Time] [2021-11-20 22:49:35,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45155 states. [2021-11-20 22:49:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45155 to 45144. [2021-11-20 22:49:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45144 states, 27367 states have (on average 1.3174260971242737) internal successors, (36054), 28331 states have internal predecessors, (36054), 14724 states have call successors, (14724), 3060 states have call predecessors, (14724), 3052 states have return successors, (14731), 14111 states have call predecessors, (14731), 14724 states have call successors, (14731) [2021-11-20 22:49:37,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45144 states to 45144 states and 65509 transitions. [2021-11-20 22:49:37,973 INFO L78 Accepts]: Start accepts. Automaton has 45144 states and 65509 transitions. Word has length 876 [2021-11-20 22:49:37,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:37,974 INFO L470 AbstractCegarLoop]: Abstraction has 45144 states and 65509 transitions. [2021-11-20 22:49:37,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 3 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 3 states have call predecessors, (90), 3 states have call successors, (90) [2021-11-20 22:49:37,975 INFO L276 IsEmpty]: Start isEmpty. Operand 45144 states and 65509 transitions. [2021-11-20 22:49:38,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2021-11-20 22:49:38,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:38,063 INFO L514 BasicCegarLoop]: trace histogram [84, 80, 80, 80, 80, 80, 80, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:38,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:49:38,064 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:38,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:38,065 INFO L85 PathProgramCache]: Analyzing trace with hash 795342349, now seen corresponding path program 1 times [2021-11-20 22:49:38,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:38,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376515603] [2021-11-20 22:49:38,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:38,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 25959 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25952 trivial. 0 not checked. [2021-11-20 22:49:39,671 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:39,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376515603] [2021-11-20 22:49:39,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376515603] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:39,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:39,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:49:39,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412552144] [2021-11-20 22:49:39,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:39,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:49:39,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:39,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:49:39,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:49:39,675 INFO L87 Difference]: Start difference. First operand 45144 states and 65509 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) [2021-11-20 22:49:47,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:57,814 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:17,886 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:23,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:23,289 INFO L93 Difference]: Finished difference Result 120994 states and 175973 transitions. [2021-11-20 22:50:23,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:50:23,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) Word has length 900 [2021-11-20 22:50:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:23,850 INFO L225 Difference]: With dead ends: 120994 [2021-11-20 22:50:23,850 INFO L226 Difference]: Without dead ends: 82982 [2021-11-20 22:50:24,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:24,023 INFO L933 BasicCegarLoop]: 13106 mSDtfsCounter, 14915 mSDsluCounter, 13516 mSDsCounter, 0 mSdLazyCounter, 11651 mSolverCounterSat, 2119 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15418 SdHoareTripleChecker+Valid, 23740 SdHoareTripleChecker+Invalid, 13772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2119 IncrementalHoareTripleChecker+Valid, 11651 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:24,023 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15418 Valid, 23740 Invalid, 13772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2119 Valid, 11651 Invalid, 2 Unknown, 0 Unchecked, 40.4s Time] [2021-11-20 22:50:24,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82982 states. [2021-11-20 22:50:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82982 to 82940. [2021-11-20 22:50:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82940 states, 50335 states have (on average 1.3194397536505413) internal successors, (66414), 52091 states have internal predecessors, (66414), 27054 states have call successors, (27054), 5566 states have call predecessors, (27054), 5550 states have return successors, (27061), 25937 states have call predecessors, (27061), 27054 states have call successors, (27061) [2021-11-20 22:50:28,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82940 states to 82940 states and 120529 transitions. [2021-11-20 22:50:28,682 INFO L78 Accepts]: Start accepts. Automaton has 82940 states and 120529 transitions. Word has length 900 [2021-11-20 22:50:28,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:28,683 INFO L470 AbstractCegarLoop]: Abstraction has 82940 states and 120529 transitions. [2021-11-20 22:50:28,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 3 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 3 states have call predecessors, (88), 3 states have call successors, (88) [2021-11-20 22:50:28,684 INFO L276 IsEmpty]: Start isEmpty. Operand 82940 states and 120529 transitions. [2021-11-20 22:50:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2021-11-20 22:50:28,885 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:28,886 INFO L514 BasicCegarLoop]: trace histogram [84, 80, 80, 80, 80, 80, 80, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:28,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 22:50:28,886 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:28,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2097452331, now seen corresponding path program 1 times [2021-11-20 22:50:28,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:28,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583386281] [2021-11-20 22:50:28,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:28,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:29,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:30,343 INFO L134 CoverageAnalysis]: Checked inductivity of 25963 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25956 trivial. 0 not checked. [2021-11-20 22:50:30,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:30,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583386281] [2021-11-20 22:50:30,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583386281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:30,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:30,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:30,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956997153] [2021-11-20 22:50:30,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:30,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:30,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:30,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:30,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:30,346 INFO L87 Difference]: Start difference. First operand 82940 states and 120529 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-20 22:50:32,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:36,879 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:50,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:52,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:52,153 INFO L93 Difference]: Finished difference Result 196367 states and 285739 transitions. [2021-11-20 22:50:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:52,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 913 [2021-11-20 22:50:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:52,807 INFO L225 Difference]: With dead ends: 196367 [2021-11-20 22:50:52,807 INFO L226 Difference]: Without dead ends: 120559 [2021-11-20 22:50:53,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:53,257 INFO L933 BasicCegarLoop]: 12028 mSDtfsCounter, 6929 mSDsluCounter, 7251 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6934 SdHoareTripleChecker+Valid, 18176 SdHoareTripleChecker+Invalid, 3397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:53,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6934 Valid, 18176 Invalid, 3397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3380 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2021-11-20 22:50:53,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120559 states. [2021-11-20 22:50:58,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120559 to 120532. [2021-11-20 22:50:58,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120532 states, 73199 states have (on average 1.3199907102556045) internal successors, (96622), 75761 states have internal predecessors, (96622), 39289 states have call successors, (39289), 8067 states have call predecessors, (39289), 8043 states have return successors, (39306), 37654 states have call predecessors, (39306), 39289 states have call successors, (39306) [2021-11-20 22:50:59,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120532 states to 120532 states and 175217 transitions. [2021-11-20 22:50:59,772 INFO L78 Accepts]: Start accepts. Automaton has 120532 states and 175217 transitions. Word has length 913 [2021-11-20 22:50:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:59,773 INFO L470 AbstractCegarLoop]: Abstraction has 120532 states and 175217 transitions. [2021-11-20 22:50:59,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 3 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2021-11-20 22:50:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 120532 states and 175217 transitions. [2021-11-20 22:50:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2021-11-20 22:50:59,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:59,937 INFO L514 BasicCegarLoop]: trace histogram [86, 82, 82, 82, 82, 82, 82, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:59,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 22:50:59,938 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1879929613, now seen corresponding path program 1 times [2021-11-20 22:50:59,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:59,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356773629] [2021-11-20 22:50:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:59,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:51:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:51:01,182 INFO L134 CoverageAnalysis]: Checked inductivity of 27268 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27261 trivial. 0 not checked. [2021-11-20 22:51:01,183 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:51:01,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356773629] [2021-11-20 22:51:01,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356773629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:51:01,183 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:51:01,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:51:01,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127636454] [2021-11-20 22:51:01,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:51:01,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:51:01,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:51:01,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:51:01,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:51:01,186 INFO L87 Difference]: Start difference. First operand 120532 states and 175217 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (96), 2 states have call predecessors, (96), 1 states have return successors, (95), 3 states have call predecessors, (95), 3 states have call successors, (95) [2021-11-20 22:51:06,870 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:51:12,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []