./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/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_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V --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-aef121e [2021-11-23 02:37:59,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:37:59,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:37:59,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:37:59,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:37:59,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:38:00,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:38:00,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:38:00,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:38:00,016 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:38:00,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:38:00,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:38:00,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:38:00,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:38:00,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:38:00,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:38:00,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:38:00,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:38:00,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:38:00,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:38:00,059 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:38:00,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:38:00,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:38:00,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:38:00,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:38:00,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:38:00,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:38:00,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:38:00,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:38:00,083 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:38:00,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:38:00,084 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:38:00,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:38:00,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:38:00,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:38:00,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:38:00,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:38:00,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:38:00,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:38:00,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:38:00,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:38:00,096 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:38:00,155 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:38:00,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:38:00,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:38:00,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:38:00,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:38:00,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:38:00,159 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:38:00,159 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:38:00,160 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:38:00,160 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:38:00,161 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:38:00,161 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:38:00,162 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:38:00,162 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:38:00,162 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:38:00,163 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:38:00,163 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:38:00,163 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:38:00,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:38:00,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:38:00,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:38:00,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:38:00,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:38:00,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:38:00,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:38:00,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:38:00,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:38:00,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:38:00,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:38:00,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:38:00,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:38:00,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:38:00,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:38:00,171 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:38:00,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:38:00,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:38:00,171 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:38:00,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:38:00,172 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_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-23 02:38:00,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:38:00,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:38:00,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:38:00,530 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:38:00,531 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:38:00,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:38:00,620 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/data/bbdb53e6b/23c50a940a1a4f889af369ae2ff608b7/FLAG2c2180460 [2021-11-23 02:38:02,093 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:38:02,095 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:38:02,208 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/data/bbdb53e6b/23c50a940a1a4f889af369ae2ff608b7/FLAG2c2180460 [2021-11-23 02:38:02,529 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/data/bbdb53e6b/23c50a940a1a4f889af369ae2ff608b7 [2021-11-23 02:38:02,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:38:02,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:38:02,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:38:02,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:38:02,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:38:02,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:02" (1/1) ... [2021-11-23 02:38:02,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a0cbeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:02, skipping insertion in model container [2021-11-23 02:38:02,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:38:02" (1/1) ... [2021-11-23 02:38:02,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:38:02,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:38:15,401 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:15,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:15,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:15,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:15,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:38:15,687 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:38:16,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:16,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:16,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:16,558 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/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] [2021-11-23 02:38:16,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:38:17,416 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:38:17,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17 WrapperNode [2021-11-23 02:38:17,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:38:17,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:38:17,422 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:38:17,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:38:17,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:17,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:18,946 INFO L137 Inliner]: procedures = 983, calls = 12456, calls flagged for inlining = 592, calls inlined = 569, statements flattened = 22508 [2021-11-23 02:38:18,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:38:18,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:38:18,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:38:18,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:38:18,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:18,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:19,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:19,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:19,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:19,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:20,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:20,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:38:20,612 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:38:20,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:38:20,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:38:20,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (1/1) ... [2021-11-23 02:38:20,638 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:38:20,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:38:20,713 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:38:20,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9cc47548-8e7b-4fa7-a72a-983b1397bebc/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:38:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_coalesce [2021-11-23 02:38:20,837 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_coalesce [2021-11-23 02:38:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-23 02:38:20,837 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-23 02:38:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_owner [2021-11-23 02:38:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_owner [2021-11-23 02:38:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:38:20,838 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:38:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_watchdog [2021-11-23 02:38:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_watchdog [2021-11-23 02:38:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_filter [2021-11-23 02:38:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_filter [2021-11-23 02:38:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:38:20,839 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:38:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_sset_count [2021-11-23 02:38:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_sset_count [2021-11-23 02:38:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:38:20,840 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:38:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-23 02:38:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-23 02:38:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 02:38:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-23 02:38:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-23 02:38:20,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-23 02:38:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-23 02:38:20,842 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-23 02:38:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure ehn_desc_tx_set_on_chain [2021-11-23 02:38:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ehn_desc_tx_set_on_chain [2021-11-23 02:38:20,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:38:20,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:38:20,844 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:38:20,844 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:38:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-23 02:38:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-23 02:38:20,845 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-23 02:38:20,845 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-23 02:38:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-23 02:38:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-23 02:38:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-23 02:38:20,846 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-23 02:38:20,846 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable_eee_mode [2021-11-23 02:38:20,847 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable_eee_mode [2021-11-23 02:38:20,847 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-23 02:38:20,848 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-23 02:38:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:38:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:38:20,849 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-23 02:38:20,849 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-23 02:38:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_operation_mode [2021-11-23 02:38:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_operation_mode [2021-11-23 02:38:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_ctrl_ane [2021-11-23 02:38:20,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_ctrl_ane [2021-11-23 02:38:20,850 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:38:20,851 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:38:20,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-23 02:38:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-23 02:38:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_16kib_bfsize [2021-11-23 02:38:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_16kib_bfsize [2021-11-23 02:38:20,852 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_timer [2021-11-23 02:38:20,852 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_timer [2021-11-23 02:38:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:38:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:38:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:38:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-23 02:38:20,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-23 02:38:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:38:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:38:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_release_tx_desc [2021-11-23 02:38:20,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_release_tx_desc [2021-11-23 02:38:20,855 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_dump_regs [2021-11-23 02:38:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_dump_regs [2021-11-23 02:38:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:38:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:38:20,856 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_mac_regs [2021-11-23 02:38:20,856 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_mac_regs [2021-11-23 02:38:20,857 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_ls [2021-11-23 02:38:20,857 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_ls [2021-11-23 02:38:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_close_tx_desc [2021-11-23 02:38:20,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_close_tx_desc [2021-11-23 02:38:20,858 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-23 02:38:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-23 02:38:20,859 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_core_init [2021-11-23 02:38:20,859 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_core_init [2021-11-23 02:38:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-23 02:38:20,860 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-23 02:38:20,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:38:20,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:38:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:38:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:38:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:38:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-23 02:38:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-23 02:38:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:38:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:38:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 02:38:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 02:38:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 02:38:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 02:38:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 02:38:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 02:38:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-23 02:38:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-23 02:38:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-23 02:38:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-23 02:38:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_8 [2021-11-23 02:38:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_8 [2021-11-23 02:38:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:38:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:38:20,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:38:20,885 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:38:20,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:38:20,887 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_ipc_enable [2021-11-23 02:38:20,887 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_ipc_enable [2021-11-23 02:38:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:38:20,888 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_status [2021-11-23 02:38:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_status [2021-11-23 02:38:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:38:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-23 02:38:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-23 02:38:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 02:38:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 02:38:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-23 02:38:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-23 02:38:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_adv [2021-11-23 02:38:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_adv [2021-11-23 02:38:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 02:38:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 02:38:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure print_pkt [2021-11-23 02:38:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure print_pkt [2021-11-23 02:38:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:38:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 02:38:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_fix_mac_speed [2021-11-23 02:38:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_fix_mac_speed [2021-11-23 02:38:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-23 02:38:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-23 02:38:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:38:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:38:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_addend [2021-11-23 02:38:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_addend [2021-11-23 02:38:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_transmission [2021-11-23 02:38:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_transmission [2021-11-23 02:38:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:38:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:38:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-23 02:38:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-23 02:38:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-23 02:38:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-23 02:38:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_pauseparam [2021-11-23 02:38:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_pauseparam [2021-11-23 02:38:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_free_rx_buffers [2021-11-23 02:38:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_free_rx_buffers [2021-11-23 02:38:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:38:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:38:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_dma_chain [2021-11-23 02:38:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_dma_chain [2021-11-23 02:38:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_frame_len [2021-11-23 02:38:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_frame_len [2021-11-23 02:38:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_rx_desc [2021-11-23 02:38:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_rx_desc [2021-11-23 02:38:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-23 02:38:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-23 02:38:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_rx_desc [2021-11-23 02:38:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_rx_desc [2021-11-23 02:38:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac_addr [2021-11-23 02:38:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac_addr [2021-11-23 02:38:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:38:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:38:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_status [2021-11-23 02:38:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_status [2021-11-23 02:38:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:38:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:38:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_reset_eee_mode [2021-11-23 02:38:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_reset_eee_mode [2021-11-23 02:38:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_enable_tx_timestamp [2021-11-23 02:38:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_enable_tx_timestamp [2021-11-23 02:38:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-23 02:38:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-23 02:38:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_rx_owner [2021-11-23 02:38:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_rx_owner [2021-11-23 02:38:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:38:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:38:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:38:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_display_ring [2021-11-23 02:38:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_display_ring [2021-11-23 02:38:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-11-23 02:38:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-11-23 02:38:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:38:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:38:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:38:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_timestamp_status [2021-11-23 02:38:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_timestamp_status [2021-11-23 02:38:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:38:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:38:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_pls [2021-11-23 02:38:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_pls [2021-11-23 02:38:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_enable_tx_timestamp [2021-11-23 02:38:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_enable_tx_timestamp [2021-11-23 02:38:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_rx_ipc_enable [2021-11-23 02:38:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_rx_ipc_enable [2021-11-23 02:38:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-23 02:38:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-23 02:38:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-23 02:38:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-23 02:38:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-23 02:38:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-23 02:38:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:38:20,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:38:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-23 02:38:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-23 02:38:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 02:38:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 02:38:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-23 02:38:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-23 02:38:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-23 02:38:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-23 02:38:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 02:38:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 02:38:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-23 02:38:20,913 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-23 02:38:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:38:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_umac_addr [2021-11-23 02:38:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_umac_addr [2021-11-23 02:38:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_len [2021-11-23 02:38:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_len [2021-11-23 02:38:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:38:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:38:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:38:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-23 02:38:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-23 02:38:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_pmt [2021-11-23 02:38:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_pmt [2021-11-23 02:38:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_timestamp_status [2021-11-23 02:38:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_timestamp_status [2021-11-23 02:38:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-11-23 02:38:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-11-23 02:38:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-23 02:38:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-23 02:38:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_irq [2021-11-23 02:38:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_irq [2021-11-23 02:38:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-23 02:38:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-23 02:38:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:38:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:38:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_systime [2021-11-23 02:38:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_systime [2021-11-23 02:38:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-23 02:38:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-23 02:38:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:38:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:38:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:38:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:38:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_time [2021-11-23 02:38:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_time [2021-11-23 02:38:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_core_init [2021-11-23 02:38:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_core_init [2021-11-23 02:38:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_hw_feature [2021-11-23 02:38:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_hw_feature [2021-11-23 02:38:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setsettings [2021-11-23 02:38:20,928 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setsettings [2021-11-23 02:38:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-23 02:38:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-23 02:38:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 02:38:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 02:38:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 02:38:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 02:38:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_rx_owner [2021-11-23 02:38:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_rx_owner [2021-11-23 02:38:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:38:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:38:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_ls [2021-11-23 02:38:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_ls [2021-11-23 02:38:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-23 02:38:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-23 02:38:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:38:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2021-11-23 02:38:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2021-11-23 02:38:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_filter [2021-11-23 02:38:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_filter [2021-11-23 02:38:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-23 02:38:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-23 02:38:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:38:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:38:20,947 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_jumbo_frm [2021-11-23 02:38:20,947 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_jumbo_frm [2021-11-23 02:38:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_freq [2021-11-23 02:38:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_freq [2021-11-23 02:38:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2021-11-23 02:38:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2021-11-23 02:38:20,948 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-23 02:38:20,948 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-23 02:38:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 02:38:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 02:38:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 02:38:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 02:38:20,949 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tstamp_tx [2021-11-23 02:38:20,949 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tstamp_tx [2021-11-23 02:38:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_time [2021-11-23 02:38:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_time [2021-11-23 02:38:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-23 02:38:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-23 02:38:20,950 INFO L130 BoogieDeclarations]: Found specification of procedure phy_stop [2021-11-23 02:38:20,950 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_stop [2021-11-23 02:38:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-23 02:38:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-23 02:38:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_release_tx_desc [2021-11-23 02:38:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_release_tx_desc [2021-11-23 02:38:20,951 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_timestamp_status [2021-11-23 02:38:20,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_timestamp_status [2021-11-23 02:38:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_mode [2021-11-23 02:38:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_mode [2021-11-23 02:38:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-23 02:38:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-23 02:38:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_gregs [2021-11-23 02:38:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_gregs [2021-11-23 02:38:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-23 02:38:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-23 02:38:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_tx_owner [2021-11-23 02:38:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_tx_owner [2021-11-23 02:38:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 02:38:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 02:38:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:38:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:38:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_avail [2021-11-23 02:38:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_avail [2021-11-23 02:38:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-23 02:38:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-23 02:38:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_len [2021-11-23 02:38:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_len [2021-11-23 02:38:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:38:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:38:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-23 02:38:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-23 02:38:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-23 02:38:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-23 02:38:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:38:20,956 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:38:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_status [2021-11-23 02:38:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_status [2021-11-23 02:38:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac [2021-11-23 02:38:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac [2021-11-23 02:38:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-23 02:38:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-23 02:38:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:38:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:38:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_desc3 [2021-11-23 02:38:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_desc3 [2021-11-23 02:38:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-11-23 02:38:20,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-11-23 02:38:20,958 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-23 02:38:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-23 02:38:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:38:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:38:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:38:20,959 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:38:20,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:38:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:38:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_mac_addr [2021-11-23 02:38:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_mac_addr [2021-11-23 02:38:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_flush_tx_fifo [2021-11-23 02:38:20,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_flush_tx_fifo [2021-11-23 02:38:20,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:38:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-23 02:38:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-23 02:38:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-23 02:38:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-23 02:38:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-23 02:38:20,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-23 02:38:20,961 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_owner [2021-11-23 02:38:20,962 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_owner [2021-11-23 02:38:20,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 02:38:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 02:38:20,963 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ts_info [2021-11-23 02:38:20,963 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ts_info [2021-11-23 02:38:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setmsglevel [2021-11-23 02:38:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setmsglevel [2021-11-23 02:38:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:38:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:38:20,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_get_regs_len [2021-11-23 02:38:20,964 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_get_regs_len [2021-11-23 02:38:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_prepare_tx_desc [2021-11-23 02:38:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_prepare_tx_desc [2021-11-23 02:38:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:38:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-23 02:38:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-23 02:38:20,965 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_timestamp_status [2021-11-23 02:38:20,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_timestamp_status [2021-11-23 02:38:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_hw_tstamping [2021-11-23 02:38:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_hw_tstamping [2021-11-23 02:38:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_flow_ctrl [2021-11-23 02:38:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_flow_ctrl [2021-11-23 02:38:20,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 02:38:20,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 02:38:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_link [2021-11-23 02:38:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_link [2021-11-23 02:38:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_eee_init [2021-11-23 02:38:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_eee_init [2021-11-23 02:38:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:38:20,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:38:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:38:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-23 02:38:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-23 02:38:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:38:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:38:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_init [2021-11-23 02:38:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_init [2021-11-23 02:38:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:38:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:38:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:38:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:38:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_tx_owner [2021-11-23 02:38:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_tx_owner [2021-11-23 02:38:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:38:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:38:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_systime [2021-11-23 02:38:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_systime [2021-11-23 02:38:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-23 02:38:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-23 02:38:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-23 02:38:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-23 02:38:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_tx [2021-11-23 02:38:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_tx [2021-11-23 02:38:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_clean [2021-11-23 02:38:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_clean [2021-11-23 02:38:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-23 02:38:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-23 02:38:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_interrupt [2021-11-23 02:38:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_interrupt [2021-11-23 02:38:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_get_umac_addr [2021-11-23 02:38:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_get_umac_addr [2021-11-23 02:38:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-23 02:38:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-23 02:38:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-23 02:38:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-23 02:38:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 02:38:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 02:38:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_ext_status [2021-11-23 02:38:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_ext_status [2021-11-23 02:38:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-23 02:38:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-23 02:38:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_timestamp [2021-11-23 02:38:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_timestamp [2021-11-23 02:38:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:38:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:38:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_rx [2021-11-23 02:38:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_rx [2021-11-23 02:38:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-23 02:38:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-23 02:38:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_diagnostic_fr [2021-11-23 02:38:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_diagnostic_fr [2021-11-23 02:38:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-23 02:38:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-23 02:38:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-23 02:38:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-23 02:38:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3 [2021-11-23 02:38:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3 [2021-11-23 02:38:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:38:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:38:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable [2021-11-23 02:38:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable [2021-11-23 02:38:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-23 02:38:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-23 02:38:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:38:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:38:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_tx_desc [2021-11-23 02:38:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_tx_desc [2021-11-23 02:38:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_tx_desc [2021-11-23 02:38:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_tx_desc [2021-11-23 02:38:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_close_tx_desc [2021-11-23 02:38:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_close_tx_desc [2021-11-23 02:38:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_irq_status [2021-11-23 02:38:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_irq_status [2021-11-23 02:38:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_wol [2021-11-23 02:38:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_wol [2021-11-23 02:38:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_systime [2021-11-23 02:38:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_systime [2021-11-23 02:38:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_umac_addr [2021-11-23 02:38:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_umac_addr [2021-11-23 02:38:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_clear_tx_ic [2021-11-23 02:38:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_clear_tx_ic [2021-11-23 02:38:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:38:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:38:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ioctl [2021-11-23 02:38:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ioctl [2021-11-23 02:38:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-23 02:38:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-23 02:38:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 02:38:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 02:38:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_unregister_platform [2021-11-23 02:38:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_unregister_platform [2021-11-23 02:38:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_irq_status [2021-11-23 02:38:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_irq_status [2021-11-23 02:38:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_timestamp [2021-11-23 02:38:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_timestamp [2021-11-23 02:38:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_owner [2021-11-23 02:38:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_owner [2021-11-23 02:38:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:38:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:38:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:38:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_rx_mode [2021-11-23 02:38:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_rx_mode [2021-11-23 02:38:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:38:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:38:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-23 02:38:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-23 02:38:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:38:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:38:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_display_ring [2021-11-23 02:38:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_display_ring [2021-11-23 02:38:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-23 02:38:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-23 02:38:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getdrvinfo [2021-11-23 02:38:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getdrvinfo [2021-11-23 02:38:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_sub_second_increment [2021-11-23 02:38:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_sub_second_increment [2021-11-23 02:38:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:38:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:38:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_check_if_running [2021-11-23 02:38:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_check_if_running [2021-11-23 02:38:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_umac_addr [2021-11-23 02:38:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_umac_addr [2021-11-23 02:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_get_eee [2021-11-23 02:38:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_get_eee [2021-11-23 02:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_pmt [2021-11-23 02:38:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_pmt [2021-11-23 02:38:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-23 02:38:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-23 02:38:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-23 02:38:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-23 02:38:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-23 02:38:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-23 02:38:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:38:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-23 02:38:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-23 02:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_refill_desc3 [2021-11-23 02:38:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_refill_desc3 [2021-11-23 02:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clear_descriptors [2021-11-23 02:38:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clear_descriptors [2021-11-23 02:38:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:38:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-23 02:38:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_flow_ctrl [2021-11-23 02:38:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_flow_ctrl [2021-11-23 02:38:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:38:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_dma_cap_open [2021-11-23 02:38:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_dma_cap_open [2021-11-23 02:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-23 02:38:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-23 02:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2021-11-23 02:38:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2021-11-23 02:38:20,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 02:38:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 02:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:38:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:38:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:38:20,992 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-23 02:38:20,992 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-23 02:38:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:38:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:38:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-23 02:38:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-23 02:38:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:38:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:38:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:38:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:38:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-23 02:38:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-23 02:38:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-23 02:38:20,994 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-23 02:38:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-23 02:38:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-23 02:38:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_status [2021-11-23 02:38:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_status [2021-11-23 02:38:20,995 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_rx [2021-11-23 02:38:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_rx [2021-11-23 02:38:21,010 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:38:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-23 02:38:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:38:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:38:21,011 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_is_jumbo_frm [2021-11-23 02:38:21,011 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_is_jumbo_frm [2021-11-23 02:38:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-23 02:38:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-23 02:38:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_ring_open [2021-11-23 02:38:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_ring_open [2021-11-23 02:38:21,012 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_owner [2021-11-23 02:38:21,012 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_owner [2021-11-23 02:38:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-23 02:38:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-23 02:38:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq_byname [2021-11-23 02:38:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq_byname [2021-11-23 02:38:21,013 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-23 02:38:21,013 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-23 02:38:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:38:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:38:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_tx [2021-11-23 02:38:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_tx [2021-11-23 02:38:21,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:38:21,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:38:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_prepare_tx_desc [2021-11-23 02:38:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_prepare_tx_desc [2021-11-23 02:38:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_frame_len [2021-11-23 02:38:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_frame_len [2021-11-23 02:38:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-23 02:38:21,015 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-23 02:38:21,015 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_tx_set_on_chain [2021-11-23 02:38:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_tx_set_on_chain [2021-11-23 02:38:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_pauseparam [2021-11-23 02:38:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_pauseparam [2021-11-23 02:38:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:38:21,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:38:21,016 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-23 02:38:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-23 02:38:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_dma_regs [2021-11-23 02:38:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_dma_regs [2021-11-23 02:38:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_change_mtu [2021-11-23 02:38:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_change_mtu [2021-11-23 02:38:21,017 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-23 02:38:21,017 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-23 02:38:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-23 02:38:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-23 02:38:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:38:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:38:21,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:38:21,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 02:38:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_coalesce [2021-11-23 02:38:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_coalesce [2021-11-23 02:38:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 02:38:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 02:38:21,019 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_disable_dma_irq [2021-11-23 02:38:21,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_disable_dma_irq [2021-11-23 02:38:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_wol [2021-11-23 02:38:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_wol [2021-11-23 02:38:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_clear_tx_ic [2021-11-23 02:38:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_clear_tx_ic [2021-11-23 02:38:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:38:21,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:38:21,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-23 02:38:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config [2021-11-23 02:38:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config [2021-11-23 02:38:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-23 02:38:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-23 02:38:21,021 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_time [2021-11-23 02:38:21,021 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_time [2021-11-23 02:38:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:38:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:38:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 02:38:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 02:38:21,022 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-23 02:38:21,022 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-23 02:38:24,005 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:38:24,013 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:38:24,291 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:39:00,479 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:39:00,878 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:08,365 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:08,365 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 02:39:08,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:08 BoogieIcfgContainer [2021-11-23 02:39:08,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:08,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:08,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:08,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:08,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:38:02" (1/3) ... [2021-11-23 02:39:08,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662a414b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:08, skipping insertion in model container [2021-11-23 02:39:08,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:38:17" (2/3) ... [2021-11-23 02:39:08,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662a414b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:08, skipping insertion in model container [2021-11-23 02:39:08,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:08" (3/3) ... [2021-11-23 02:39:08,386 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-23 02:39:08,391 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:08,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 02:39:08,456 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:08,463 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 [2021-11-23 02:39:08,463 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 02:39:08,574 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) [2021-11-23 02:39:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-11-23 02:39:08,632 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:08,633 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] [2021-11-23 02:39:08,634 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] === [2021-11-23 02:39:08,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:08,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1089309642, now seen corresponding path program 1 times [2021-11-23 02:39:08,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:08,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511984019] [2021-11-23 02:39:08,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:08,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:09,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:11,247 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-23 02:39:11,248 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:11,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511984019] [2021-11-23 02:39:11,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511984019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:11,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:11,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:11,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681349290] [2021-11-23 02:39:11,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:11,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:11,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:11,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:11,310 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) [2021-11-23 02:39:16,733 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:20,128 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:23,098 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:30,456 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:30,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:30,845 INFO L93 Difference]: Finished difference Result 14711 states and 21535 transitions. [2021-11-23 02:39:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:30,848 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 [2021-11-23 02:39:30,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:30,992 INFO L225 Difference]: With dead ends: 14711 [2021-11-23 02:39:30,993 INFO L226 Difference]: Without dead ends: 9811 [2021-11-23 02:39:31,038 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 [2021-11-23 02:39:31,047 INFO L933 BasicCegarLoop]: 7804 mSDtfsCounter, 7027 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 2290 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 13999 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2290 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:31,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7031 Valid, 13999 Invalid, 2309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2290 Invalid, 2 Unknown, 0 Unchecked, 18.6s Time] [2021-11-23 02:39:31,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9811 states. [2021-11-23 02:39:31,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9811 to 9808. [2021-11-23 02:39:31,935 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) [2021-11-23 02:39:32,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 14324 transitions. [2021-11-23 02:39:32,053 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 14324 transitions. Word has length 819 [2021-11-23 02:39:32,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:32,061 INFO L470 AbstractCegarLoop]: Abstraction has 9808 states and 14324 transitions. [2021-11-23 02:39:32,062 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) [2021-11-23 02:39:32,064 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 14324 transitions. [2021-11-23 02:39:32,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2021-11-23 02:39:32,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:32,108 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] [2021-11-23 02:39:32,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:39:32,109 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] === [2021-11-23 02:39:32,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:32,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1561475438, now seen corresponding path program 1 times [2021-11-23 02:39:32,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:32,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286892390] [2021-11-23 02:39:32,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:32,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:34,130 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-23 02:39:34,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:34,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286892390] [2021-11-23 02:39:34,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286892390] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:34,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:34,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:34,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357203712] [2021-11-23 02:39:34,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:34,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:34,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:34,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:34,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:34,137 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) [2021-11-23 02:39:36,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:40,180 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:45,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:50,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:53,164 INFO L93 Difference]: Finished difference Result 24204 states and 35326 transitions. [2021-11-23 02:39:53,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:53,164 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 [2021-11-23 02:39:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:53,320 INFO L225 Difference]: With dead ends: 24204 [2021-11-23 02:39:53,320 INFO L226 Difference]: Without dead ends: 14557 [2021-11-23 02:39:53,385 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 [2021-11-23 02:39:53,392 INFO L933 BasicCegarLoop]: 7777 mSDtfsCounter, 6961 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6965 SdHoareTripleChecker+Valid, 13957 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:53,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6965 Valid, 13957 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2278 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2021-11-23 02:39:53,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14557 states. [2021-11-23 02:39:54,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14557 to 14537. [2021-11-23 02:39:54,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14537 states, 8809 states have (on average 1.3205812237484391) internal successors, (11633), 9099 states have internal predecessors, (11633), 4787 states have call successors, (4787), 942 states have call predecessors, (4787), 939 states have return successors, (4784), 4605 states have call predecessors, (4784), 4784 states have call successors, (4784) [2021-11-23 02:39:54,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14537 states to 14537 states and 21204 transitions. [2021-11-23 02:39:54,576 INFO L78 Accepts]: Start accepts. Automaton has 14537 states and 21204 transitions. Word has length 836 [2021-11-23 02:39:54,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:54,579 INFO L470 AbstractCegarLoop]: Abstraction has 14537 states and 21204 transitions. [2021-11-23 02:39:54,579 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) [2021-11-23 02:39:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 14537 states and 21204 transitions. [2021-11-23 02:39:54,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2021-11-23 02:39:54,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:54,628 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] [2021-11-23 02:39:54,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:39:54,628 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] === [2021-11-23 02:39:54,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:54,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1467331920, now seen corresponding path program 1 times [2021-11-23 02:39:54,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:54,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820479804] [2021-11-23 02:39:54,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:54,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-23 02:39:56,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:56,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820479804] [2021-11-23 02:39:56,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820479804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:56,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:56,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:56,191 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302162647] [2021-11-23 02:39:56,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:56,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:56,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:56,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:56,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:56,196 INFO L87 Difference]: Start difference. First operand 14537 states and 21204 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) [2021-11-23 02:40:01,498 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:11,685 INFO L93 Difference]: Finished difference Result 38370 states and 55955 transitions. [2021-11-23 02:40:11,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:40:11,690 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 [2021-11-23 02:40:11,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:12,020 INFO L225 Difference]: With dead ends: 38370 [2021-11-23 02:40:12,020 INFO L226 Difference]: Without dead ends: 23994 [2021-11-23 02:40:12,104 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 [2021-11-23 02:40:12,109 INFO L933 BasicCegarLoop]: 7764 mSDtfsCounter, 6946 mSDsluCounter, 7279 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6950 SdHoareTripleChecker+Valid, 13938 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:12,111 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6950 Valid, 13938 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2288 Invalid, 1 Unknown, 0 Unchecked, 14.7s Time] [2021-11-23 02:40:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23994 states. [2021-11-23 02:40:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23994 to 23972. [2021-11-23 02:40:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23972 states, 14551 states have (on average 1.320940141571026) internal successors, (19221), 15039 states have internal predecessors, (19221), 7854 states have call successors, (7854), 1570 states have call predecessors, (7854), 1565 states have return successors, (7851), 7546 states have call predecessors, (7851), 7851 states have call successors, (7851) [2021-11-23 02:40:13,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23972 states to 23972 states and 34926 transitions. [2021-11-23 02:40:13,936 INFO L78 Accepts]: Start accepts. Automaton has 23972 states and 34926 transitions. Word has length 851 [2021-11-23 02:40:13,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:13,938 INFO L470 AbstractCegarLoop]: Abstraction has 23972 states and 34926 transitions. [2021-11-23 02:40:13,939 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) [2021-11-23 02:40:13,939 INFO L276 IsEmpty]: Start isEmpty. Operand 23972 states and 34926 transitions. [2021-11-23 02:40:13,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2021-11-23 02:40:13,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:40:13,983 INFO L514 BasicCegarLoop]: trace histogram [83, 80, 80, 80, 80, 80, 80, 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] [2021-11-23 02:40:13,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:40:13,984 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] === [2021-11-23 02:40:13,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:40:13,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1758693600, now seen corresponding path program 1 times [2021-11-23 02:40:13,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:40:13,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047673493] [2021-11-23 02:40:13,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:40:13,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:40:14,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:40:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 25771 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25771 trivial. 0 not checked. [2021-11-23 02:40:16,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:40:16,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047673493] [2021-11-23 02:40:16,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047673493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:16,304 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:16,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:40:16,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385360626] [2021-11-23 02:40:16,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:16,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:40:16,307 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:40:16,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:40:16,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:40:16,308 INFO L87 Difference]: Start difference. First operand 23972 states and 34926 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) [2021-11-23 02:40:19,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:23,641 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:26,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:38,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:42,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:43,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:43,855 INFO L93 Difference]: Finished difference Result 35797 states and 51038 transitions. [2021-11-23 02:40:43,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:40:43,870 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 858 [2021-11-23 02:40:43,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:44,097 INFO L225 Difference]: With dead ends: 35797 [2021-11-23 02:40:44,097 INFO L226 Difference]: Without dead ends: 35778 [2021-11-23 02:40:44,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:40:44,132 INFO L933 BasicCegarLoop]: 7093 mSDtfsCounter, 7111 mSDsluCounter, 11489 mSDsCounter, 0 mSdLazyCounter, 2717 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7117 SdHoareTripleChecker+Valid, 17026 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2717 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:44,134 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7117 Valid, 17026 Invalid, 2720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2717 Invalid, 3 Unknown, 0 Unchecked, 26.5s Time] [2021-11-23 02:40:44,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35778 states. [2021-11-23 02:40:46,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35778 to 35773. [2021-11-23 02:40:46,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35773 states, 21355 states have (on average 1.2991336923437133) internal successors, (27743), 22247 states have internal predecessors, (27743), 11624 states have call successors, (11624), 2797 states have call predecessors, (11624), 2793 states have return successors, (11631), 11047 states have call predecessors, (11631), 11624 states have call successors, (11631) [2021-11-23 02:40:46,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35773 states to 35773 states and 50998 transitions. [2021-11-23 02:40:46,669 INFO L78 Accepts]: Start accepts. Automaton has 35773 states and 50998 transitions. Word has length 858 [2021-11-23 02:40:46,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:46,671 INFO L470 AbstractCegarLoop]: Abstraction has 35773 states and 50998 transitions. [2021-11-23 02:40:46,671 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) [2021-11-23 02:40:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 35773 states and 50998 transitions. [2021-11-23 02:40:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2021-11-23 02:40:46,711 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:40:46,712 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] [2021-11-23 02:40:46,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:40:46,712 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] === [2021-11-23 02:40:46,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:40:46,713 INFO L85 PathProgramCache]: Analyzing trace with hash 525900655, now seen corresponding path program 1 times [2021-11-23 02:40:46,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:40:46,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229322903] [2021-11-23 02:40:46,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:40:46,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:40:47,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:40:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 26732 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26732 trivial. 0 not checked. [2021-11-23 02:40:48,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:40:48,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229322903] [2021-11-23 02:40:48,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229322903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:48,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:48,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:40:48,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271033671] [2021-11-23 02:40:48,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:48,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:40:48,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:40:48,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:40:48,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:40:48,464 INFO L87 Difference]: Start difference. First operand 35773 states and 50998 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) [2021-11-23 02:40:53,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:56,493 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:59,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:05,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:07,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:07,728 INFO L93 Difference]: Finished difference Result 99732 states and 142172 transitions. [2021-11-23 02:41:07,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:07,728 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 [2021-11-23 02:41:07,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:08,209 INFO L225 Difference]: With dead ends: 99732 [2021-11-23 02:41:08,209 INFO L226 Difference]: Without dead ends: 64120 [2021-11-23 02:41:08,379 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 [2021-11-23 02:41:08,379 INFO L933 BasicCegarLoop]: 7755 mSDtfsCounter, 6966 mSDsluCounter, 7272 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6970 SdHoareTripleChecker+Valid, 13920 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 2272 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:08,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 13920 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2272 Invalid, 2 Unknown, 0 Unchecked, 17.3s Time] [2021-11-23 02:41:08,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64120 states. [2021-11-23 02:41:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64120 to 64109. [2021-11-23 02:41:11,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64109 states, 38294 states have (on average 1.2992374784561551) internal successors, (49753), 39910 states have internal predecessors, (49753), 20792 states have call successors, (20792), 5030 states have call predecessors, (20792), 5022 states have return successors, (20805), 19743 states have call predecessors, (20805), 20792 states have call successors, (20805) [2021-11-23 02:41:12,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64109 states to 64109 states and 91350 transitions. [2021-11-23 02:41:12,148 INFO L78 Accepts]: Start accepts. Automaton has 64109 states and 91350 transitions. Word has length 876 [2021-11-23 02:41:12,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:12,150 INFO L470 AbstractCegarLoop]: Abstraction has 64109 states and 91350 transitions. [2021-11-23 02:41:12,151 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) [2021-11-23 02:41:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 64109 states and 91350 transitions. [2021-11-23 02:41:12,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2021-11-23 02:41:12,249 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:12,250 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] [2021-11-23 02:41:12,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:41:12,251 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] === [2021-11-23 02:41:12,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:12,252 INFO L85 PathProgramCache]: Analyzing trace with hash 795342349, now seen corresponding path program 1 times [2021-11-23 02:41:12,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:12,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868979449] [2021-11-23 02:41:12,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:12,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 25959 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25952 trivial. 0 not checked. [2021-11-23 02:41:14,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:14,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868979449] [2021-11-23 02:41:14,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868979449] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:14,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:14,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:41:14,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328358938] [2021-11-23 02:41:14,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:14,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:41:14,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:14,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:41:14,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:41:14,185 INFO L87 Difference]: Start difference. First operand 64109 states and 91350 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) [2021-11-23 02:41:18,234 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:21,295 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:24,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:26,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:36,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:37,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:42,015 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:52,623 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:04,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:09,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:09,678 INFO L93 Difference]: Finished difference Result 158836 states and 227533 transitions. [2021-11-23 02:42:09,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:42:09,679 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 [2021-11-23 02:42:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:10,710 INFO L225 Difference]: With dead ends: 158836 [2021-11-23 02:42:10,710 INFO L226 Difference]: Without dead ends: 101864 [2021-11-23 02:42:10,979 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 [2021-11-23 02:42:10,981 INFO L933 BasicCegarLoop]: 13237 mSDtfsCounter, 14869 mSDsluCounter, 13499 mSDsCounter, 0 mSdLazyCounter, 11658 mSolverCounterSat, 2110 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15376 SdHoareTripleChecker+Valid, 23863 SdHoareTripleChecker+Invalid, 13771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2110 IncrementalHoareTripleChecker+Valid, 11658 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:42:10,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15376 Valid, 23863 Invalid, 13771 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2110 Valid, 11658 Invalid, 3 Unknown, 0 Unchecked, 51.9s Time] [2021-11-23 02:42:11,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101864 states. [2021-11-23 02:42:15,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101864 to 101809. [2021-11-23 02:42:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101809 states, 61206 states have (on average 1.3078619743162434) internal successors, (80049), 63622 states have internal predecessors, (80049), 33082 states have call successors, (33082), 7536 states have call predecessors, (33082), 7520 states have return successors, (33107), 31521 states have call predecessors, (33107), 33082 states have call successors, (33107) [2021-11-23 02:42:17,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101809 states to 101809 states and 146238 transitions. [2021-11-23 02:42:17,037 INFO L78 Accepts]: Start accepts. Automaton has 101809 states and 146238 transitions. Word has length 900 [2021-11-23 02:42:17,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:17,038 INFO L470 AbstractCegarLoop]: Abstraction has 101809 states and 146238 transitions. [2021-11-23 02:42:17,039 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) [2021-11-23 02:42:17,039 INFO L276 IsEmpty]: Start isEmpty. Operand 101809 states and 146238 transitions. [2021-11-23 02:42:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2021-11-23 02:42:17,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:17,159 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] [2021-11-23 02:42:17,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:42:17,159 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] === [2021-11-23 02:42:17,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:17,160 INFO L85 PathProgramCache]: Analyzing trace with hash -2097452331, now seen corresponding path program 1 times [2021-11-23 02:42:17,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:17,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83315365] [2021-11-23 02:42:17,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:17,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 25963 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25956 trivial. 0 not checked. [2021-11-23 02:42:18,960 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:18,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83315365] [2021-11-23 02:42:18,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83315365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:18,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:18,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:18,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868244148] [2021-11-23 02:42:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:18,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:18,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:18,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:18,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:18,963 INFO L87 Difference]: Start difference. First operand 101809 states and 146238 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) [2021-11-23 02:42:22,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:25,270 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:27,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:45,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:45,371 INFO L93 Difference]: Finished difference Result 234048 states and 337088 transitions. [2021-11-23 02:42:45,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:42:45,372 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 [2021-11-23 02:42:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:46,646 INFO L225 Difference]: With dead ends: 234048 [2021-11-23 02:42:46,646 INFO L226 Difference]: Without dead ends: 139376 [2021-11-23 02:42:46,973 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 [2021-11-23 02:42:46,974 INFO L933 BasicCegarLoop]: 12016 mSDtfsCounter, 6914 mSDsluCounter, 7250 mSDsCounter, 0 mSdLazyCounter, 3375 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6921 SdHoareTripleChecker+Valid, 18164 SdHoareTripleChecker+Invalid, 3393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3375 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:42:46,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6921 Valid, 18164 Invalid, 3393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3375 Invalid, 3 Unknown, 0 Unchecked, 21.3s Time] [2021-11-23 02:42:47,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139376 states. [2021-11-23 02:42:54,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139376 to 139345. [2021-11-23 02:42:54,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139345 states, 84036 states have (on average 1.3115450521205199) internal successors, (110217), 87264 states have internal predecessors, (110217), 45295 states have call successors, (45295), 10037 states have call predecessors, (45295), 10013 states have return successors, (45344), 43210 states have call predecessors, (45344), 45295 states have call successors, (45344) [2021-11-23 02:42:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139345 states to 139345 states and 200856 transitions. [2021-11-23 02:42:56,095 INFO L78 Accepts]: Start accepts. Automaton has 139345 states and 200856 transitions. Word has length 913 [2021-11-23 02:42:56,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:56,097 INFO L470 AbstractCegarLoop]: Abstraction has 139345 states and 200856 transitions. [2021-11-23 02:42:56,097 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) [2021-11-23 02:42:56,098 INFO L276 IsEmpty]: Start isEmpty. Operand 139345 states and 200856 transitions. [2021-11-23 02:42:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2021-11-23 02:42:56,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:56,275 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] [2021-11-23 02:42:56,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:42:56,276 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] === [2021-11-23 02:42:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:56,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1879929613, now seen corresponding path program 1 times [2021-11-23 02:42:56,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:56,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645734338] [2021-11-23 02:42:56,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:56,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:56,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:58,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27268 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27261 trivial. 0 not checked. [2021-11-23 02:42:58,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:58,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645734338] [2021-11-23 02:42:58,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645734338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:58,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:58,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:58,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153477482] [2021-11-23 02:42:58,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:58,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:58,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:58,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:58,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:58,279 INFO L87 Difference]: Start difference. First operand 139345 states and 200856 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) [2021-11-23 02:43:01,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:03,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:06,331 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:14,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []