./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/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_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7 --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 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:50:37,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:50:37,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:50:37,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:50:37,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:50:37,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:50:37,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:50:37,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:50:37,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:50:37,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:50:37,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:50:37,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:50:37,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:50:37,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:50:37,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:50:37,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:50:37,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:50:37,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:50:37,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:50:37,415 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:50:37,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:50:37,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:50:37,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:50:37,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:50:37,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:50:37,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:50:37,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:50:37,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:50:37,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:50:37,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:50:37,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:50:37,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:50:37,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:50:37,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:50:37,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:50:37,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:50:37,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:50:37,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:50:37,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:50:37,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:50:37,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:50:37,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 18:50:37,518 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:50:37,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:50:37,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:50:37,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:50:37,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:50:37,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:50:37,522 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:50:37,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:50:37,523 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:50:37,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:50:37,524 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:50:37,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:50:37,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:50:37,525 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:50:37,525 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:50:37,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:50:37,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:50:37,526 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:50:37,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:50:37,528 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:50:37,528 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:50:37,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:50:37,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:50:37,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:50:37,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:50:37,529 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:50:37,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:50:37,532 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:50:37,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:50:37,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:50:37,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:50:37,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:50:37,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:50:37,534 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:50:37,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:50:37,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:50:37,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:50:37,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:50:37,535 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_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22220d7d2391b6973f693fd73ea6ad5e547e8b6be8ceeaf0b83ac6f26119702f [2021-11-25 18:50:37,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:50:37,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:50:37,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:50:37,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:50:37,888 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:50:37,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-25 18:50:37,993 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/data/ef45b42ab/3b91eacee31a416f8ec5e344db5aab99/FLAGad9eb5c71 [2021-11-25 18:50:39,371 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:50:39,376 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-25 18:50:39,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/data/ef45b42ab/3b91eacee31a416f8ec5e344db5aab99/FLAGad9eb5c71 [2021-11-25 18:50:39,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/data/ef45b42ab/3b91eacee31a416f8ec5e344db5aab99 [2021-11-25 18:50:39,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:50:39,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:50:39,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:50:39,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:50:39,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:50:39,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:50:39" (1/1) ... [2021-11-25 18:50:39,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69d574ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:39, skipping insertion in model container [2021-11-25 18:50:39,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:50:39" (1/1) ... [2021-11-25 18:50:39,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:50:40,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:50:51,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:51,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:51,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:51,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:51,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:50:52,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:50:53,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:53,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:53,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:53,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/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] [2021-11-25 18:50:53,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:50:53,792 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:50:53,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53 WrapperNode [2021-11-25 18:50:53,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:50:53,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:50:53,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:50:53,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:50:53,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:54,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:55,174 INFO L137 Inliner]: procedures = 983, calls = 12456, calls flagged for inlining = 592, calls inlined = 569, statements flattened = 22508 [2021-11-25 18:50:55,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:50:55,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:50:55,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:50:55,178 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:50:55,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:55,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:55,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:55,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:56,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:56,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:56,556 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:56,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:50:56,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:50:56,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:50:56,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:50:56,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (1/1) ... [2021-11-25 18:50:56,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:50:56,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:50:56,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:50:56,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a42c243-4dcc-4439-af30-40bff60ff517/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:50:56,851 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_coalesce [2021-11-25 18:50:56,851 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_coalesce [2021-11-25 18:50:56,852 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-25 18:50:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-25 18:50:56,852 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_owner [2021-11-25 18:50:56,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_owner [2021-11-25 18:50:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:50:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:50:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_watchdog [2021-11-25 18:50:56,853 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_watchdog [2021-11-25 18:50:56,853 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_filter [2021-11-25 18:50:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_filter [2021-11-25 18:50:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 18:50:56,854 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 18:50:56,854 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_sset_count [2021-11-25 18:50:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_sset_count [2021-11-25 18:50:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-25 18:50:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-25 18:50:56,855 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-25 18:50:56,855 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-25 18:50:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 18:50:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 18:50:56,856 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-25 18:50:56,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~VOID [2021-11-25 18:50:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0 [2021-11-25 18:50:56,857 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0 [2021-11-25 18:50:56,857 INFO L130 BoogieDeclarations]: Found specification of procedure ehn_desc_tx_set_on_chain [2021-11-25 18:50:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ehn_desc_tx_set_on_chain [2021-11-25 18:50:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 18:50:56,858 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 18:50:56,858 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 18:50:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 18:50:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe [2021-11-25 18:50:56,859 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe [2021-11-25 18:50:56,859 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_poll_controller [2021-11-25 18:50:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller [2021-11-25 18:50:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 18:50:56,860 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 18:50:56,860 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend [2021-11-25 18:50:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend [2021-11-25 18:50:56,861 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable_eee_mode [2021-11-25 18:50:56,861 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable_eee_mode [2021-11-25 18:50:56,862 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-25 18:50:56,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-25 18:50:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-25 18:50:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-25 18:50:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-11-25 18:50:56,864 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-11-25 18:50:56,864 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_operation_mode [2021-11-25 18:50:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_operation_mode [2021-11-25 18:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_ctrl_ane [2021-11-25 18:50:56,865 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_ctrl_ane [2021-11-25 18:50:56,865 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 18:50:56,866 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 18:50:56,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-25 18:50:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~int [2021-11-25 18:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_16kib_bfsize [2021-11-25 18:50:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_16kib_bfsize [2021-11-25 18:50:56,867 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_timer [2021-11-25 18:50:56,867 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_timer [2021-11-25 18:50:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:50:56,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:50:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:50:56,868 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-25 18:50:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~TO~VOID [2021-11-25 18:50:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:50:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:50:56,869 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_release_tx_desc [2021-11-25 18:50:56,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_release_tx_desc [2021-11-25 18:50:56,870 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_dump_regs [2021-11-25 18:50:56,870 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_dump_regs [2021-11-25 18:50:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:50:56,871 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:50:56,871 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_mac_regs [2021-11-25 18:50:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_mac_regs [2021-11-25 18:50:56,872 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_ls [2021-11-25 18:50:56,872 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_ls [2021-11-25 18:50:56,873 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_close_tx_desc [2021-11-25 18:50:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_close_tx_desc [2021-11-25 18:50:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-25 18:50:56,874 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-25 18:50:56,874 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_core_init [2021-11-25 18:50:56,875 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_core_init [2021-11-25 18:50:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-25 18:50:56,876 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-25 18:50:56,876 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:50:56,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:50:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:50:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 18:50:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 18:50:56,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-25 18:50:56,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-25 18:50:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:50:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:50:56,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-25 18:50:56,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-25 18:50:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-25 18:50:56,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-25 18:50:56,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-25 18:50:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-25 18:50:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_6 [2021-11-25 18:50:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_6 [2021-11-25 18:50:56,881 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs [2021-11-25 18:50:56,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs [2021-11-25 18:50:56,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_8 [2021-11-25 18:50:56,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_8 [2021-11-25 18:50:56,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:50:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:50:56,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:50:56,887 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:50:56,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:50:56,888 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_rx_ipc_enable [2021-11-25 18:50:56,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_rx_ipc_enable [2021-11-25 18:50:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:50:56,889 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_status [2021-11-25 18:50:56,899 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_status [2021-11-25 18:50:56,899 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 18:50:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:50:56,900 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:50:56,900 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-25 18:50:56,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-25 18:50:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2021-11-25 18:50:56,901 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2021-11-25 18:50:56,901 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_adv [2021-11-25 18:50:56,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_adv [2021-11-25 18:50:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-25 18:50:56,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-25 18:50:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure print_pkt [2021-11-25 18:50:56,902 INFO L138 BoogieDeclarations]: Found implementation of procedure print_pkt [2021-11-25 18:50:56,902 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:50:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-25 18:50:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_fix_mac_speed [2021-11-25 18:50:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_fix_mac_speed [2021-11-25 18:50:56,903 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-25 18:50:56,903 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-25 18:50:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 18:50:56,904 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 18:50:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_addend [2021-11-25 18:50:56,904 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_addend [2021-11-25 18:50:56,904 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_transmission [2021-11-25 18:50:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_transmission [2021-11-25 18:50:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:50:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:50:56,905 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-25 18:50:56,905 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-25 18:50:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_suspend [2021-11-25 18:50:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_suspend [2021-11-25 18:50:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_pauseparam [2021-11-25 18:50:56,906 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_pauseparam [2021-11-25 18:50:56,906 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_free_rx_buffers [2021-11-25 18:50:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_free_rx_buffers [2021-11-25 18:50:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-25 18:50:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-25 18:50:56,907 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_dma_chain [2021-11-25 18:50:56,907 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_dma_chain [2021-11-25 18:50:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_frame_len [2021-11-25 18:50:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_frame_len [2021-11-25 18:50:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_rx_desc [2021-11-25 18:50:56,908 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_rx_desc [2021-11-25 18:50:56,908 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_interrupt [2021-11-25 18:50:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_interrupt [2021-11-25 18:50:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_rx_desc [2021-11-25 18:50:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_rx_desc [2021-11-25 18:50:56,909 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac_addr [2021-11-25 18:50:56,909 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac_addr [2021-11-25 18:50:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:50:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:50:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_status [2021-11-25 18:50:56,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_status [2021-11-25 18:50:56,910 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-25 18:50:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-25 18:50:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_reset_eee_mode [2021-11-25 18:50:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_reset_eee_mode [2021-11-25 18:50:56,911 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_enable_tx_timestamp [2021-11-25 18:50:56,911 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_enable_tx_timestamp [2021-11-25 18:50:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-11-25 18:50:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-11-25 18:50:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_rx_owner [2021-11-25 18:50:56,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_rx_owner [2021-11-25 18:50:56,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:50:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:50:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-25 18:50:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_display_ring [2021-11-25 18:50:56,913 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_display_ring [2021-11-25 18:50:56,913 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-11-25 18:50:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-11-25 18:50:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 18:50:56,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 18:50:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 18:50:56,914 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_timestamp_status [2021-11-25 18:50:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_timestamp_status [2021-11-25 18:50:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:50:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:50:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_pls [2021-11-25 18:50:56,915 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_pls [2021-11-25 18:50:56,915 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_enable_tx_timestamp [2021-11-25 18:50:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_enable_tx_timestamp [2021-11-25 18:50:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_rx_ipc_enable [2021-11-25 18:50:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_rx_ipc_enable [2021-11-25 18:50:56,916 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 18:50:56,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 18:50:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-25 18:50:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-11-25 18:50:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats [2021-11-25 18:50:56,917 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats [2021-11-25 18:50:56,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:50:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:50:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers [2021-11-25 18:50:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers [2021-11-25 18:50:56,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-25 18:50:56,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-25 18:50:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_setup [2021-11-25 18:50:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup [2021-11-25 18:50:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-11-25 18:50:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-11-25 18:50:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-25 18:50:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-25 18:50:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-25 18:50:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-25 18:50:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:50:56,920 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_umac_addr [2021-11-25 18:50:56,920 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_umac_addr [2021-11-25 18:50:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_len [2021-11-25 18:50:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_len [2021-11-25 18:50:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:50:56,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:50:56,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:50:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 18:50:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 18:50:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_pmt [2021-11-25 18:50:56,922 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_pmt [2021-11-25 18:50:56,922 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_timestamp_status [2021-11-25 18:50:56,924 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_timestamp_status [2021-11-25 18:50:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2021-11-25 18:50:56,928 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2021-11-25 18:50:56,928 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_release [2021-11-25 18:50:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_release [2021-11-25 18:50:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_enable_dma_irq [2021-11-25 18:50:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_enable_dma_irq [2021-11-25 18:50:56,929 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout [2021-11-25 18:50:56,929 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout [2021-11-25 18:50:56,930 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 18:50:56,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 18:50:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_systime [2021-11-25 18:50:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_systime [2021-11-25 18:50:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 18:50:56,933 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 18:50:56,933 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 18:50:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 18:50:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:50:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:50:56,934 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_time [2021-11-25 18:50:56,934 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_time [2021-11-25 18:50:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_core_init [2021-11-25 18:50:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_core_init [2021-11-25 18:50:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_hw_feature [2021-11-25 18:50:56,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_hw_feature [2021-11-25 18:50:56,935 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setsettings [2021-11-25 18:50:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setsettings [2021-11-25 18:50:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-25 18:50:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-25 18:50:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-25 18:50:56,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-25 18:50:56,936 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-25 18:50:56,937 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-25 18:50:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_rx_owner [2021-11-25 18:50:56,937 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_rx_owner [2021-11-25 18:50:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 18:50:56,937 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 18:50:56,937 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_ls [2021-11-25 18:50:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_ls [2021-11-25 18:50:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_hw_init [2021-11-25 18:50:56,938 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_hw_init [2021-11-25 18:50:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:50:56,938 INFO L130 BoogieDeclarations]: Found specification of procedure clk_prepare_enable [2021-11-25 18:50:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_prepare_enable [2021-11-25 18:50:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_set_filter [2021-11-25 18:50:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_set_filter [2021-11-25 18:50:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2021-11-25 18:50:56,939 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2021-11-25 18:50:56,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:50:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:50:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_jumbo_frm [2021-11-25 18:50:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_jumbo_frm [2021-11-25 18:50:56,940 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_freq [2021-11-25 18:50:56,940 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_freq [2021-11-25 18:50:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2021-11-25 18:50:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2021-11-25 18:50:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-25 18:50:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-25 18:50:56,941 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 18:50:56,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 18:50:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-25 18:50:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-25 18:50:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tstamp_tx [2021-11-25 18:50:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tstamp_tx [2021-11-25 18:50:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_time [2021-11-25 18:50:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_time [2021-11-25 18:50:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-25 18:50:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u64~0 [2021-11-25 18:50:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure phy_stop [2021-11-25 18:50:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_stop [2021-11-25 18:50:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-25 18:50:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~VOID [2021-11-25 18:50:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_release_tx_desc [2021-11-25 18:50:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_release_tx_desc [2021-11-25 18:50:56,944 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_timestamp_status [2021-11-25 18:50:56,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_timestamp_status [2021-11-25 18:50:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_eee_mode [2021-11-25 18:50:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_eee_mode [2021-11-25 18:50:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode [2021-11-25 18:50:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode [2021-11-25 18:50:56,945 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_gregs [2021-11-25 18:50:56,945 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_gregs [2021-11-25 18:50:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_remove [2021-11-25 18:50:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove [2021-11-25 18:50:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_set_tx_owner [2021-11-25 18:50:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_set_tx_owner [2021-11-25 18:50:56,946 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:50:56,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:50:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:50:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:50:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_avail [2021-11-25 18:50:56,947 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_avail [2021-11-25 18:50:56,947 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove [2021-11-25 18:50:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove [2021-11-25 18:50:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_len [2021-11-25 18:50:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_len [2021-11-25 18:50:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:50:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:50:56,948 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt [2021-11-25 18:50:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt [2021-11-25 18:50:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-25 18:50:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2021-11-25 18:50:56,949 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-25 18:50:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-25 18:50:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_tx_status [2021-11-25 18:50:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_tx_status [2021-11-25 18:50:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_mac [2021-11-25 18:50:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_mac [2021-11-25 18:50:56,950 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume [2021-11-25 18:50:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume [2021-11-25 18:50:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 18:50:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 18:50:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_init_desc3 [2021-11-25 18:50:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_init_desc3 [2021-11-25 18:50:56,951 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2021-11-25 18:50:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2021-11-25 18:50:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-25 18:50:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-25 18:50:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:50:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:50:56,952 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 18:50:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 18:50:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:50:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:50:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_mac_addr [2021-11-25 18:50:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_mac_addr [2021-11-25 18:50:56,953 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_flush_tx_fifo [2021-11-25 18:50:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_flush_tx_fifo [2021-11-25 18:50:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:50:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_open [2021-11-25 18:50:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_open [2021-11-25 18:50:56,954 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-25 18:50:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-25 18:50:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-25 18:50:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2021-11-25 18:50:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_rx_owner [2021-11-25 18:50:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_rx_owner [2021-11-25 18:50:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-25 18:50:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-25 18:50:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_ts_info [2021-11-25 18:50:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_ts_info [2021-11-25 18:50:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_setmsglevel [2021-11-25 18:50:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_setmsglevel [2021-11-25 18:50:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:50:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:50:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_get_regs_len [2021-11-25 18:50:56,958 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_get_regs_len [2021-11-25 18:50:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_prepare_tx_desc [2021-11-25 18:50:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_prepare_tx_desc [2021-11-25 18:50:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:50:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:50:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:50:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_timestamp_status [2021-11-25 18:50:56,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_timestamp_status [2021-11-25 18:50:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_hw_tstamping [2021-11-25 18:50:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_hw_tstamping [2021-11-25 18:50:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_flow_ctrl [2021-11-25 18:50:56,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_flow_ctrl [2021-11-25 18:50:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 18:50:56,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 18:50:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_link [2021-11-25 18:50:56,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_link [2021-11-25 18:50:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_eee_init [2021-11-25 18:50:56,961 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_eee_init [2021-11-25 18:50:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 18:50:56,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 18:50:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:50:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure init_dma_desc_rings [2021-11-25 18:50:56,962 INFO L138 BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings [2021-11-25 18:50:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 18:50:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 18:50:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_init [2021-11-25 18:50:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_init [2021-11-25 18:50:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 18:50:56,963 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 18:50:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:50:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:50:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_set_tx_owner [2021-11-25 18:50:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_set_tx_owner [2021-11-25 18:50:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:50:56,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:50:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_systime [2021-11-25 18:50:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_systime [2021-11-25 18:50:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features [2021-11-25 18:50:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features [2021-11-25 18:50:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-25 18:50:56,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-25 18:50:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_tx [2021-11-25 18:50:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_tx [2021-11-25 18:50:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_clean [2021-11-25 18:50:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_clean [2021-11-25 18:50:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-11-25 18:50:56,966 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-11-25 18:50:56,966 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_interrupt [2021-11-25 18:50:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_interrupt [2021-11-25 18:50:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_get_umac_addr [2021-11-25 18:50:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_get_umac_addr [2021-11-25 18:50:56,967 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_probe [2021-11-25 18:50:56,967 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe [2021-11-25 18:50:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-25 18:50:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-25 18:50:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-25 18:50:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-25 18:50:56,968 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_ext_status [2021-11-25 18:50:56,968 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_ext_status [2021-11-25 18:50:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe [2021-11-25 18:50:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe [2021-11-25 18:50:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_timestamp [2021-11-25 18:50:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_timestamp [2021-11-25 18:50:56,969 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-25 18:50:56,969 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-25 18:50:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_stop_rx [2021-11-25 18:50:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_stop_rx [2021-11-25 18:50:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_resume [2021-11-25 18:50:56,970 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_resume [2021-11-25 18:50:56,970 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dma_diagnostic_fr [2021-11-25 18:50:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dma_diagnostic_fr [2021-11-25 18:50:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_desc_resources [2021-11-25 18:50:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources [2021-11-25 18:50:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset [2021-11-25 18:50:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset [2021-11-25 18:50:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3 [2021-11-25 18:50:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3 [2021-11-25 18:50:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:50:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:50:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_enable [2021-11-25 18:50:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_enable [2021-11-25 18:50:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee [2021-11-25 18:50:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee [2021-11-25 18:50:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:50:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:50:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_init_tx_desc [2021-11-25 18:50:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_init_tx_desc [2021-11-25 18:50:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_init_tx_desc [2021-11-25 18:50:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_init_tx_desc [2021-11-25 18:50:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_close_tx_desc [2021-11-25 18:50:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_close_tx_desc [2021-11-25 18:50:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_irq_status [2021-11-25 18:50:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_irq_status [2021-11-25 18:50:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_wol [2021-11-25 18:50:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_wol [2021-11-25 18:50:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_systime [2021-11-25 18:50:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_systime [2021-11-25 18:50:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_set_umac_addr [2021-11-25 18:50:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_set_umac_addr [2021-11-25 18:50:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_clear_tx_ic [2021-11-25 18:50:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_clear_tx_ic [2021-11-25 18:50:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-25 18:50:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-25 18:50:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ioctl [2021-11-25 18:50:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ioctl [2021-11-25 18:50:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-25 18:50:57,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-25 18:50:57,038 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 18:50:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 18:50:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_unregister_platform [2021-11-25 18:50:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_unregister_platform [2021-11-25 18:50:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_irq_status [2021-11-25 18:50:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_irq_status [2021-11-25 18:50:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_timestamp [2021-11-25 18:50:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_timestamp [2021-11-25 18:50:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_owner [2021-11-25 18:50:57,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_owner [2021-11-25 18:50:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:50:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:50:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:50:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_rx_mode [2021-11-25 18:50:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_rx_mode [2021-11-25 18:50:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-25 18:50:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-25 18:50:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-25 18:50:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-25 18:50:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-25 18:50:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-25 18:50:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_display_ring [2021-11-25 18:50:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_display_ring [2021-11-25 18:50:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-25 18:50:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-25 18:50:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getdrvinfo [2021-11-25 18:50:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getdrvinfo [2021-11-25 18:50:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config_sub_second_increment [2021-11-25 18:50:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config_sub_second_increment [2021-11-25 18:50:57,041 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:50:57,041 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:50:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_check_if_running [2021-11-25 18:50:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_check_if_running [2021-11-25 18:50:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_get_umac_addr [2021-11-25 18:50:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_get_umac_addr [2021-11-25 18:50:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_get_eee [2021-11-25 18:50:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_get_eee [2021-11-25 18:50:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac1000_pmt [2021-11-25 18:50:57,042 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac1000_pmt [2021-11-25 18:50:57,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-25 18:50:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-25 18:50:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-25 18:50:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-25 18:50:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_ktime [2021-11-25 18:50:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_ktime [2021-11-25 18:50:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 18:50:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 18:50:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-25 18:50:57,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-25 18:50:57,043 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_refill_desc3 [2021-11-25 18:50:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_refill_desc3 [2021-11-25 18:50:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_clear_descriptors [2021-11-25 18:50:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_clear_descriptors [2021-11-25 18:50:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 18:50:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 18:50:57,044 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_flow_ctrl [2021-11-25 18:50:57,044 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_flow_ctrl [2021-11-25 18:50:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:50:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_dma_cap_open [2021-11-25 18:50:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_dma_cap_open [2021-11-25 18:50:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:50:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:50:57,045 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2021-11-25 18:50:57,045 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2021-11-25 18:50:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-25 18:50:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-25 18:50:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-25 18:50:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-25 18:50:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:50:57,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:50:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-11-25 18:50:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-11-25 18:50:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-25 18:50:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-25 18:50:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq [2021-11-25 18:50:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq [2021-11-25 18:50:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:50:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:50:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:50:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:50:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-25 18:50:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-25 18:50:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure irq_set_irq_wake [2021-11-25 18:50:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_set_irq_wake [2021-11-25 18:50:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove [2021-11-25 18:50:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove [2021-11-25 18:50:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_status [2021-11-25 18:50:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_status [2021-11-25 18:50:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_rx [2021-11-25 18:50:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_rx [2021-11-25 18:50:57,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 18:50:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-25 18:50:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:50:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:50:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_is_jumbo_frm [2021-11-25 18:50:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_is_jumbo_frm [2021-11-25 18:50:57,050 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-25 18:50:57,050 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-25 18:50:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_sysfs_ring_open [2021-11-25 18:50:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_sysfs_ring_open [2021-11-25 18:50:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_get_tx_owner [2021-11-25 18:50:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_get_tx_owner [2021-11-25 18:50:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-25 18:50:57,051 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-25 18:50:57,051 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq_byname [2021-11-25 18:50:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq_byname [2021-11-25 18:50:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_tx_err [2021-11-25 18:50:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_tx_err [2021-11-25 18:50:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 18:50:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 18:50:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_dma_start_tx [2021-11-25 18:50:57,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_dma_start_tx [2021-11-25 18:50:57,052 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-25 18:50:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-25 18:50:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_prepare_tx_desc [2021-11-25 18:50:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_prepare_tx_desc [2021-11-25 18:50:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_get_rx_frame_len [2021-11-25 18:50:57,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_get_rx_frame_len [2021-11-25 18:50:57,053 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-25 18:50:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-25 18:50:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure ndesc_tx_set_on_chain [2021-11-25 18:50:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ndesc_tx_set_on_chain [2021-11-25 18:50:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_pauseparam [2021-11-25 18:50:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_pauseparam [2021-11-25 18:50:57,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:50:57,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:50:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 18:50:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 18:50:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac100_dump_dma_regs [2021-11-25 18:50:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac100_dump_dma_regs [2021-11-25 18:50:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_change_mtu [2021-11-25 18:50:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_change_mtu [2021-11-25 18:50:57,055 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 18:50:57,055 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 18:50:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings [2021-11-25 18:50:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings [2021-11-25 18:50:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-25 18:50:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-25 18:50:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 18:50:57,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 18:50:57,056 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_set_coalesce [2021-11-25 18:50:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_set_coalesce [2021-11-25 18:50:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 18:50:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 18:50:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure dwmac_disable_dma_irq [2021-11-25 18:50:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dwmac_disable_dma_irq [2021-11-25 18:50:57,057 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_get_wol [2021-11-25 18:50:57,057 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_get_wol [2021-11-25 18:50:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure enh_desc_clear_tx_ic [2021-11-25 18:50:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure enh_desc_clear_tx_ic [2021-11-25 18:50:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:50:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:50:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:50:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_config [2021-11-25 18:50:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_config [2021-11-25 18:50:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-25 18:50:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_stmmac_exit_21_2 [2021-11-25 18:50:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_adjust_time [2021-11-25 18:50:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_adjust_time [2021-11-25 18:50:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:50:57,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:50:57,059 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 18:50:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 18:50:57,060 INFO L130 BoogieDeclarations]: Found specification of procedure stmmac_pci_resume [2021-11-25 18:50:57,060 INFO L138 BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume [2021-11-25 18:50:59,426 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:50:59,434 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:50:59,874 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:51:35,134 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:51:35,664 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:51:42,344 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:51:42,345 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-25 18:51:42,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:51:42 BoogieIcfgContainer [2021-11-25 18:51:42,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:51:42,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:51:42,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:51:42,362 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:51:42,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:50:39" (1/3) ... [2021-11-25 18:51:42,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6dfcee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:51:42, skipping insertion in model container [2021-11-25 18:51:42,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:50:53" (2/3) ... [2021-11-25 18:51:42,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d6dfcee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:51:42, skipping insertion in model container [2021-11-25 18:51:42,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:51:42" (3/3) ... [2021-11-25 18:51:42,365 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i [2021-11-25 18:51:42,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:51:42,371 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 18:51:42,462 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:51:42,476 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 [2021-11-25 18:51:42,476 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 18:51:42,599 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) [2021-11-25 18:51:42,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 820 [2021-11-25 18:51:42,650 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:51:42,651 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] [2021-11-25 18:51:42,652 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] === [2021-11-25 18:51:42,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:51:42,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1089309642, now seen corresponding path program 1 times [2021-11-25 18:51:42,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:51:42,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767810217] [2021-11-25 18:51:42,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:51:42,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:51:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:51:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-25 18:51:45,299 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:51:45,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767810217] [2021-11-25 18:51:45,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767810217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:51:45,300 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:51:45,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:51:45,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057707341] [2021-11-25 18:51:45,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:51:45,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:51:45,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:51:45,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:51:45,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:51:45,358 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) [2021-11-25 18:51:49,903 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 [] [2021-11-25 18:51:53,387 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:51:56,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:03,841 INFO L93 Difference]: Finished difference Result 14711 states and 21535 transitions. [2021-11-25 18:52:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:03,844 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 [2021-11-25 18:52:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:03,986 INFO L225 Difference]: With dead ends: 14711 [2021-11-25 18:52:03,986 INFO L226 Difference]: Without dead ends: 9811 [2021-11-25 18:52:04,030 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 [2021-11-25 18:52:04,033 INFO L933 BasicCegarLoop]: 7804 mSDtfsCounter, 7027 mSDsluCounter, 7297 mSDsCounter, 0 mSdLazyCounter, 2289 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7031 SdHoareTripleChecker+Valid, 13999 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2289 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:04,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7031 Valid, 13999 Invalid, 2309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2289 Invalid, 3 Unknown, 0 Unchecked, 17.6s Time] [2021-11-25 18:52:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9811 states. [2021-11-25 18:52:04,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9811 to 9808. [2021-11-25 18:52:04,964 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) [2021-11-25 18:52:05,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9808 states to 9808 states and 14324 transitions. [2021-11-25 18:52:05,086 INFO L78 Accepts]: Start accepts. Automaton has 9808 states and 14324 transitions. Word has length 819 [2021-11-25 18:52:05,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:05,094 INFO L470 AbstractCegarLoop]: Abstraction has 9808 states and 14324 transitions. [2021-11-25 18:52:05,095 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) [2021-11-25 18:52:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 9808 states and 14324 transitions. [2021-11-25 18:52:05,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2021-11-25 18:52:05,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:05,154 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] [2021-11-25 18:52:05,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:52:05,155 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] === [2021-11-25 18:52:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1561475438, now seen corresponding path program 1 times [2021-11-25 18:52:05,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:05,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341853454] [2021-11-25 18:52:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:05,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:06,658 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-25 18:52:06,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:06,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341853454] [2021-11-25 18:52:06,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341853454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:06,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:06,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:52:06,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569677231] [2021-11-25 18:52:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:06,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:52:06,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:06,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:52:06,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:52:06,667 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) [2021-11-25 18:52:10,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:12,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:17,502 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:19,924 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:22,953 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:26,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:27,945 INFO L93 Difference]: Finished difference Result 24204 states and 35326 transitions. [2021-11-25 18:52:27,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:27,945 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 [2021-11-25 18:52:27,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:28,110 INFO L225 Difference]: With dead ends: 24204 [2021-11-25 18:52:28,110 INFO L226 Difference]: Without dead ends: 14557 [2021-11-25 18:52:28,185 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 [2021-11-25 18:52:28,186 INFO L933 BasicCegarLoop]: 7777 mSDtfsCounter, 6961 mSDsluCounter, 7280 mSDsCounter, 0 mSdLazyCounter, 2278 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6965 SdHoareTripleChecker+Valid, 13957 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2278 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:28,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6965 Valid, 13957 Invalid, 2292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2278 Invalid, 2 Unknown, 0 Unchecked, 20.6s Time] [2021-11-25 18:52:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14557 states. [2021-11-25 18:52:29,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14557 to 14537. [2021-11-25 18:52:29,197 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) [2021-11-25 18:52:29,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14537 states to 14537 states and 21204 transitions. [2021-11-25 18:52:29,279 INFO L78 Accepts]: Start accepts. Automaton has 14537 states and 21204 transitions. Word has length 836 [2021-11-25 18:52:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:29,283 INFO L470 AbstractCegarLoop]: Abstraction has 14537 states and 21204 transitions. [2021-11-25 18:52:29,283 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) [2021-11-25 18:52:29,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14537 states and 21204 transitions. [2021-11-25 18:52:29,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 852 [2021-11-25 18:52:29,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:29,313 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] [2021-11-25 18:52:29,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:52:29,314 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] === [2021-11-25 18:52:29,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1467331920, now seen corresponding path program 1 times [2021-11-25 18:52:29,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:29,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022419597] [2021-11-25 18:52:29,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:29,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 25440 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25440 trivial. 0 not checked. [2021-11-25 18:52:30,874 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:30,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022419597] [2021-11-25 18:52:30,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022419597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:30,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:30,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:52:30,877 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700391188] [2021-11-25 18:52:30,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:30,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:52:30,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:30,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:52:30,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:52:30,882 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) [2021-11-25 18:52:34,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:36,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:45,889 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:52:48,009 INFO L93 Difference]: Finished difference Result 38372 states and 55962 transitions. [2021-11-25 18:52:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:52:48,010 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 [2021-11-25 18:52:48,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:52:48,225 INFO L225 Difference]: With dead ends: 38372 [2021-11-25 18:52:48,225 INFO L226 Difference]: Without dead ends: 23996 [2021-11-25 18:52:48,324 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 [2021-11-25 18:52:48,325 INFO L933 BasicCegarLoop]: 7764 mSDtfsCounter, 6945 mSDsluCounter, 7278 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6951 SdHoareTripleChecker+Valid, 13938 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:52:48,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6951 Valid, 13938 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 2286 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time] [2021-11-25 18:52:48,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23996 states. [2021-11-25 18:52:49,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23996 to 23970. [2021-11-25 18:52:49,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23970 states, 14549 states have (on average 1.320984260086604) internal successors, (19219), 15039 states have internal predecessors, (19219), 7854 states have call successors, (7854), 1570 states have call predecessors, (7854), 1565 states have return successors, (7855), 7544 states have call predecessors, (7855), 7851 states have call successors, (7855) [2021-11-25 18:52:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23970 states to 23970 states and 34928 transitions. [2021-11-25 18:52:50,007 INFO L78 Accepts]: Start accepts. Automaton has 23970 states and 34928 transitions. Word has length 851 [2021-11-25 18:52:50,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:52:50,009 INFO L470 AbstractCegarLoop]: Abstraction has 23970 states and 34928 transitions. [2021-11-25 18:52:50,009 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) [2021-11-25 18:52:50,009 INFO L276 IsEmpty]: Start isEmpty. Operand 23970 states and 34928 transitions. [2021-11-25 18:52:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2021-11-25 18:52:50,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:52:50,036 INFO L514 BasicCegarLoop]: trace histogram [83, 80, 80, 80, 80, 80, 80, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:52:50,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:52:50,036 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] === [2021-11-25 18:52:50,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:52:50,037 INFO L85 PathProgramCache]: Analyzing trace with hash -527498028, now seen corresponding path program 1 times [2021-11-25 18:52:50,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:52:50,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79683253] [2021-11-25 18:52:50,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:52:50,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:52:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:52:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 25770 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25770 trivial. 0 not checked. [2021-11-25 18:52:52,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:52:52,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79683253] [2021-11-25 18:52:52,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79683253] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:52:52,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:52:52,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:52:52,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547445668] [2021-11-25 18:52:52,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:52:52,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:52:52,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:52:52,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:52:52,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:52:52,201 INFO L87 Difference]: Start difference. First operand 23970 states and 34928 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) [2021-11-25 18:52:55,537 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 [] [2021-11-25 18:52:57,956 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:52:59,969 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:02,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:05,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:08,162 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:12,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:17,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:19,560 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:22,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:53:22,266 INFO L93 Difference]: Finished difference Result 35793 states and 51040 transitions. [2021-11-25 18:53:22,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:53:22,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 857 [2021-11-25 18:53:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:53:22,491 INFO L225 Difference]: With dead ends: 35793 [2021-11-25 18:53:22,491 INFO L226 Difference]: Without dead ends: 35774 [2021-11-25 18:53:22,518 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 [2021-11-25 18:53:22,519 INFO L933 BasicCegarLoop]: 7093 mSDtfsCounter, 7111 mSDsluCounter, 11490 mSDsCounter, 0 mSdLazyCounter, 2716 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7117 SdHoareTripleChecker+Valid, 17026 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2716 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:53:22,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7117 Valid, 17026 Invalid, 2721 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2716 Invalid, 5 Unknown, 0 Unchecked, 29.1s Time] [2021-11-25 18:53:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35774 states. [2021-11-25 18:53:24,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35774 to 35769. [2021-11-25 18:53:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35769 states, 21351 states have (on average 1.2991897335019438) internal successors, (27739), 22247 states have internal predecessors, (27739), 11624 states have call successors, (11624), 2797 states have call predecessors, (11624), 2793 states have return successors, (11637), 11043 states have call predecessors, (11637), 11624 states have call successors, (11637) [2021-11-25 18:53:24,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35769 states to 35769 states and 51000 transitions. [2021-11-25 18:53:24,977 INFO L78 Accepts]: Start accepts. Automaton has 35769 states and 51000 transitions. Word has length 857 [2021-11-25 18:53:24,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:24,979 INFO L470 AbstractCegarLoop]: Abstraction has 35769 states and 51000 transitions. [2021-11-25 18:53:24,979 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) [2021-11-25 18:53:24,979 INFO L276 IsEmpty]: Start isEmpty. Operand 35769 states and 51000 transitions. [2021-11-25 18:53:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2021-11-25 18:53:25,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:25,205 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] [2021-11-25 18:53:25,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:53:25,205 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] === [2021-11-25 18:53:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash 525900655, now seen corresponding path program 1 times [2021-11-25 18:53:25,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:25,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136512937] [2021-11-25 18:53:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:25,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 26732 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26732 trivial. 0 not checked. [2021-11-25 18:53:26,693 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:26,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136512937] [2021-11-25 18:53:26,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136512937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:26,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:26,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:53:26,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269885884] [2021-11-25 18:53:26,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:26,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:53:26,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:53:26,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:53:26,696 INFO L87 Difference]: Start difference. First operand 35769 states and 51000 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) [2021-11-25 18:53:30,373 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:32,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:38,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:45,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:53:46,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:53:46,180 INFO L93 Difference]: Finished difference Result 99720 states and 142178 transitions. [2021-11-25 18:53:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:53:46,181 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 [2021-11-25 18:53:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:53:46,792 INFO L225 Difference]: With dead ends: 99720 [2021-11-25 18:53:46,792 INFO L226 Difference]: Without dead ends: 64112 [2021-11-25 18:53:46,976 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 [2021-11-25 18:53:46,977 INFO L933 BasicCegarLoop]: 7755 mSDtfsCounter, 6966 mSDsluCounter, 7272 mSDsCounter, 0 mSdLazyCounter, 2272 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s 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, 17.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:53:46,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6970 Valid, 13920 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 2272 Invalid, 2 Unknown, 0 Unchecked, 17.8s Time] [2021-11-25 18:53:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64112 states. [2021-11-25 18:53:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64112 to 64101. [2021-11-25 18:53:50,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64101 states, 38286 states have (on average 1.2993000052238417) internal successors, (49745), 39910 states have internal predecessors, (49745), 20792 states have call successors, (20792), 5030 states have call predecessors, (20792), 5022 states have return successors, (20817), 19735 states have call predecessors, (20817), 20792 states have call successors, (20817) [2021-11-25 18:53:51,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64101 states to 64101 states and 91354 transitions. [2021-11-25 18:53:51,138 INFO L78 Accepts]: Start accepts. Automaton has 64101 states and 91354 transitions. Word has length 876 [2021-11-25 18:53:51,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:53:51,140 INFO L470 AbstractCegarLoop]: Abstraction has 64101 states and 91354 transitions. [2021-11-25 18:53:51,140 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) [2021-11-25 18:53:51,140 INFO L276 IsEmpty]: Start isEmpty. Operand 64101 states and 91354 transitions. [2021-11-25 18:53:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2021-11-25 18:53:51,224 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:53:51,225 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] [2021-11-25 18:53:51,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:53:51,226 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] === [2021-11-25 18:53:51,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:53:51,227 INFO L85 PathProgramCache]: Analyzing trace with hash 795342349, now seen corresponding path program 1 times [2021-11-25 18:53:51,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:53:51,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28098678] [2021-11-25 18:53:51,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:53:51,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:53:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:53:53,005 INFO L134 CoverageAnalysis]: Checked inductivity of 25959 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25952 trivial. 0 not checked. [2021-11-25 18:53:53,005 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:53:53,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28098678] [2021-11-25 18:53:53,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28098678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:53:53,006 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:53:53,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:53:53,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544708069] [2021-11-25 18:53:53,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:53:53,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:53:53,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:53:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:53:53,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:53:53,009 INFO L87 Difference]: Start difference. First operand 64101 states and 91354 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) [2021-11-25 18:53:57,002 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:00,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:02,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:24,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:37,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:54:37,534 INFO L93 Difference]: Finished difference Result 158822 states and 227562 transitions. [2021-11-25 18:54:37,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:54:37,535 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 [2021-11-25 18:54:37,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:54:38,366 INFO L225 Difference]: With dead ends: 158822 [2021-11-25 18:54:38,367 INFO L226 Difference]: Without dead ends: 101858 [2021-11-25 18:54:38,643 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 [2021-11-25 18:54:38,644 INFO L933 BasicCegarLoop]: 13237 mSDtfsCounter, 14865 mSDsluCounter, 15275 mSDsCounter, 0 mSdLazyCounter, 11705 mSolverCounterSat, 545 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15376 SdHoareTripleChecker+Valid, 25597 SdHoareTripleChecker+Invalid, 12253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 11705 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:54:38,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15376 Valid, 25597 Invalid, 12253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [545 Valid, 11705 Invalid, 3 Unknown, 0 Unchecked, 40.8s Time] [2021-11-25 18:54:38,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101858 states. [2021-11-25 18:54:43,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101858 to 101797. [2021-11-25 18:54:43,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101797 states, 61192 states have (on average 1.3079324094652895) internal successors, (80035), 63626 states have internal predecessors, (80035), 33082 states have call successors, (33082), 7536 states have call predecessors, (33082), 7522 states have return successors, (33139), 31505 states have call predecessors, (33139), 33082 states have call successors, (33139) [2021-11-25 18:54:44,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101797 states to 101797 states and 146256 transitions. [2021-11-25 18:54:44,186 INFO L78 Accepts]: Start accepts. Automaton has 101797 states and 146256 transitions. Word has length 900 [2021-11-25 18:54:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:54:44,187 INFO L470 AbstractCegarLoop]: Abstraction has 101797 states and 146256 transitions. [2021-11-25 18:54:44,188 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) [2021-11-25 18:54:44,188 INFO L276 IsEmpty]: Start isEmpty. Operand 101797 states and 146256 transitions. [2021-11-25 18:54:44,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2021-11-25 18:54:44,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:54:44,289 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] [2021-11-25 18:54:44,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:54:44,290 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] === [2021-11-25 18:54:44,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:54:44,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2097452331, now seen corresponding path program 1 times [2021-11-25 18:54:44,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:54:44,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251873381] [2021-11-25 18:54:44,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:54:44,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:54:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:54:46,224 INFO L134 CoverageAnalysis]: Checked inductivity of 25963 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 25956 trivial. 0 not checked. [2021-11-25 18:54:46,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:54:46,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251873381] [2021-11-25 18:54:46,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251873381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:54:46,225 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:54:46,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:54:46,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190943178] [2021-11-25 18:54:46,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:54:46,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:54:46,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:54:46,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:54:46,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:54:46,229 INFO L87 Difference]: Start difference. First operand 101797 states and 146256 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) [2021-11-25 18:54:49,452 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:53,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:54:58,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:00,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:10,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:55:13,042 INFO L93 Difference]: Finished difference Result 234024 states and 337118 transitions. [2021-11-25 18:55:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:55:13,043 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 [2021-11-25 18:55:13,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:55:14,138 INFO L225 Difference]: With dead ends: 234024 [2021-11-25 18:55:14,138 INFO L226 Difference]: Without dead ends: 139364 [2021-11-25 18:55:14,481 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 [2021-11-25 18:55:14,482 INFO L933 BasicCegarLoop]: 12016 mSDtfsCounter, 6915 mSDsluCounter, 7251 mSDsCounter, 0 mSdLazyCounter, 3378 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6920 SdHoareTripleChecker+Valid, 18164 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 3378 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:55:14,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6920 Valid, 18164 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 3378 Invalid, 2 Unknown, 0 Unchecked, 22.2s Time] [2021-11-25 18:55:14,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139364 states. [2021-11-25 18:55:20,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139364 to 139337. [2021-11-25 18:55:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139337 states, 84026 states have (on average 1.3115821293409182) internal successors, (110207), 87268 states have internal predecessors, (110207), 45295 states have call successors, (45295), 10037 states have call predecessors, (45295), 10015 states have return successors, (45368), 43198 states have call predecessors, (45368), 45295 states have call successors, (45368) [2021-11-25 18:55:22,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139337 states to 139337 states and 200870 transitions. [2021-11-25 18:55:22,057 INFO L78 Accepts]: Start accepts. Automaton has 139337 states and 200870 transitions. Word has length 913 [2021-11-25 18:55:22,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:55:22,058 INFO L470 AbstractCegarLoop]: Abstraction has 139337 states and 200870 transitions. [2021-11-25 18:55:22,058 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) [2021-11-25 18:55:22,058 INFO L276 IsEmpty]: Start isEmpty. Operand 139337 states and 200870 transitions. [2021-11-25 18:55:22,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 940 [2021-11-25 18:55:22,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:55:22,179 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] [2021-11-25 18:55:22,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:55:22,180 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] === [2021-11-25 18:55:22,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:55:22,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1879929613, now seen corresponding path program 1 times [2021-11-25 18:55:22,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:55:22,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622018408] [2021-11-25 18:55:22,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:55:22,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:55:22,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:55:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 27268 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27261 trivial. 0 not checked. [2021-11-25 18:55:23,906 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:55:23,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622018408] [2021-11-25 18:55:23,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622018408] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:55:23,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:55:23,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:55:23,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821154519] [2021-11-25 18:55:23,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:55:23,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:55:23,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:55:23,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:55:23,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:55:23,910 INFO L87 Difference]: Start difference. First operand 139337 states and 200870 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) [2021-11-25 18:55:28,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:30,734 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:35,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:55:39,817 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 []