./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-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:21:20,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:21:20,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:21:20,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:21:20,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:21:20,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:21:20,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:21:20,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:21:20,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:21:20,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:21:20,933 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:21:20,936 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:21:20,937 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:21:20,941 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:21:20,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:21:20,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:21:20,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:21:20,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:21:20,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:21:20,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:21:20,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:21:20,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:21:20,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:21:20,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:21:20,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:21:20,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:21:20,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:21:20,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:21:20,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:21:20,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:21:21,000 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:21:21,001 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:21:21,004 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:21:21,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:21:21,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:21:21,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:21:21,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:21:21,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:21:21,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:21:21,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:21:21,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:21:21,014 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:21:21,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:21:21,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:21:21,078 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:21:21,078 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:21:21,079 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:21:21,079 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:21:21,080 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:21:21,080 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:21:21,080 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:21:21,081 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:21:21,082 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:21:21,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:21:21,083 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:21:21,084 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:21:21,084 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:21:21,084 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:21:21,084 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:21:21,085 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:21:21,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:21:21,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:21:21,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:21:21,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:21:21,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:21:21,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:21:21,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:21:21,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:21:21,090 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:21:21,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:21:21,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:21:21,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:21:21,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:21:21,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:21:21,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:21:21,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:21:21,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:21:21,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:21:21,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:21:21,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:21:21,095 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_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20ba2e9cc2ef279759182db9390a81601d500e95b3e9fdb04cf7f5f978bf9c45 [2021-11-21 00:21:21,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:21:21,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:21:21,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:21:21,493 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:21:21,494 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:21:21,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-21 00:21:21,607 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/data/8b4c15a57/a36fb6a020e240c894858c402bdd74c9/FLAGfe610431d [2021-11-21 00:21:23,108 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:21:23,110 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-21 00:21:23,238 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/data/8b4c15a57/a36fb6a020e240c894858c402bdd74c9/FLAGfe610431d [2021-11-21 00:21:23,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/data/8b4c15a57/a36fb6a020e240c894858c402bdd74c9 [2021-11-21 00:21:23,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:21:23,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:21:23,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:21:23,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:21:23,519 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:21:23,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:21:23" (1/1) ... [2021-11-21 00:21:23,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3850e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:23, skipping insertion in model container [2021-11-21 00:21:23,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:21:23" (1/1) ... [2021-11-21 00:21:23,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:21:23,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:21:32,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2021-11-21 00:21:32,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2021-11-21 00:21:32,834 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2021-11-21 00:21:32,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2021-11-21 00:21:32,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:21:33,101 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:21:34,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885586,885599] [2021-11-21 00:21:34,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885733,885746] [2021-11-21 00:21:34,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[885872,885885] [2021-11-21 00:21:34,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i[886030,886043] [2021-11-21 00:21:34,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:21:35,057 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:21:35,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35 WrapperNode [2021-11-21 00:21:35,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:21:35,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:21:35,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:21:35,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:21:35,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:35,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:36,522 INFO L137 Inliner]: procedures = 581, calls = 10779, calls flagged for inlining = 348, calls inlined = 340, statements flattened = 25810 [2021-11-21 00:21:36,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:21:36,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:21:36,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:21:36,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:21:36,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:36,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:36,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:36,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:37,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:37,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:37,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:38,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:21:38,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:21:38,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:21:38,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:21:38,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (1/1) ... [2021-11-21 00:21:38,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:21:38,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:21:38,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:21:38,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebc505ea-0884-4915-b272-43522d75cb5d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:21:38,121 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_check_bssid [2021-11-21 00:21:38,121 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_check_bssid [2021-11-21 00:21:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_rf_reg [2021-11-21 00:21:38,122 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_rf_reg [2021-11-21 00:21:38,122 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_on [2021-11-21 00:21:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_on [2021-11-21 00:21:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-21 00:21:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-21 00:21:38,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:21:38,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:21:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_lc_calibrate [2021-11-21 00:21:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_lc_calibrate [2021-11-21 00:21:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl8188e_config_bb_reg [2021-11-21 00:21:38,124 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl8188e_config_bb_reg [2021-11-21 00:21:38,124 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_word [2021-11-21 00:21:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_word [2021-11-21 00:21:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_enter [2021-11-21 00:21:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_enter [2021-11-21 00:21:38,125 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_path_adda_on [2021-11-21 00:21:38,125 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_path_adda_on [2021-11-21 00:21:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_signal_scale_mapping [2021-11-21 00:21:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_signal_scale_mapping [2021-11-21 00:21:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_byte [2021-11-21 00:21:38,126 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_byte [2021-11-21 00:21:38,126 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:21:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:21:38,127 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-21 00:21:38,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-21 00:21:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:21:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:21:38,128 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_query_bb_reg [2021-11-21 00:21:38,128 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_query_bb_reg [2021-11-21 00:21:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_suspend [2021-11-21 00:21:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_suspend [2021-11-21 00:21:38,129 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_interrupt [2021-11-21 00:21:38,129 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_interrupt [2021-11-21 00:21:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_sw_led_off [2021-11-21 00:21:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_sw_led_off [2021-11-21 00:21:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:21:38,130 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_dword [2021-11-21 00:21:38,130 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_dword [2021-11-21 00:21:38,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:21:38,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:21:38,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-21 00:21:38,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl88ee_driver_exit_9_2 [2021-11-21 00:21:38,133 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-21 00:21:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_config_rf_with_headerfile [2021-11-21 00:21:38,134 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_firmware_selfreset [2021-11-21 00:21:38,134 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_firmware_selfreset [2021-11-21 00:21:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:21:38,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:21:38,135 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 00:21:38,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 00:21:38,136 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_desc [2021-11-21 00:21:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_desc [2021-11-21 00:21:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_interval [2021-11-21 00:21:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_interval [2021-11-21 00:21:38,137 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_disable_interrupt [2021-11-21 00:21:38,137 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_disable_interrupt [2021-11-21 00:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_resume [2021-11-21 00:21:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_resume [2021-11-21 00:21:38,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 00:21:38,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 00:21:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_channel_access_setting [2021-11-21 00:21:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_channel_access_setting [2021-11-21 00:21:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_rx_idle_ant [2021-11-21 00:21:38,139 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_rx_idle_ant [2021-11-21 00:21:38,139 INFO L130 BoogieDeclarations]: Found specification of procedure get_rf_type [2021-11-21 00:21:38,140 INFO L138 BoogieDeclarations]: Found implementation of procedure get_rf_type [2021-11-21 00:21:38,140 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:21:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:21:38,141 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-21 00:21:38,141 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-21 00:21:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:21:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_has_protected [2021-11-21 00:21:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_has_protected [2021-11-21 00:21:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:21:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:21:38,143 INFO L130 BoogieDeclarations]: Found specification of procedure is_hal_stop [2021-11-21 00:21:38,143 INFO L138 BoogieDeclarations]: Found implementation of procedure is_hal_stop [2021-11-21 00:21:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:21:38,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:21:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:21:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure rf_serial_read [2021-11-21 00:21:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure rf_serial_read [2021-11-21 00:21:38,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:21:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_interrupt_mask [2021-11-21 00:21:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_interrupt_mask [2021-11-21 00:21:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:21:38,147 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:21:38,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:21:38,148 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:21:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rf_reg [2021-11-21 00:21:38,148 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rf_reg [2021-11-21 00:21:38,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:21:38,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:21:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-21 00:21:38,149 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-21 00:21:38,149 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2021-11-21 00:21:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2021-11-21 00:21:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_card_disable [2021-11-21 00:21:38,150 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_card_disable [2021-11-21 00:21:38,150 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_check_fw_read_last_h2c [2021-11-21 00:21:38,151 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_check_fw_read_last_h2c [2021-11-21 00:21:38,152 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_beacon [2021-11-21 00:21:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_beacon [2021-11-21 00:21:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-21 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u16~0 [2021-11-21 00:21:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_led_control [2021-11-21 00:21:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_led_control [2021-11-21 00:21:38,158 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_beacon_related_registers [2021-11-21 00:21:38,158 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_beacon_related_registers [2021-11-21 00:21:38,159 INFO L130 BoogieDeclarations]: Found specification of procedure save_adda_reg [2021-11-21 00:21:38,159 INFO L138 BoogieDeclarations]: Found implementation of procedure save_adda_reg [2021-11-21 00:21:38,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-21 00:21:38,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u8~0 [2021-11-21 00:21:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-21 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-21 00:21:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:21:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:21:38,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:21:38,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-21 00:21:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-21 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:21:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:21:38,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-21 00:21:38,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-21 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 00:21:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_hw_reg [2021-11-21 00:21:38,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_hw_reg [2021-11-21 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:21:38,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:21:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:21:38,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:21:38,169 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_rfpath_switch [2021-11-21 00:21:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_rfpath_switch [2021-11-21 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:21:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:21:38,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:21:38,170 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_update_hal_rate_tbl [2021-11-21 00:21:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_update_hal_rate_tbl [2021-11-21 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_txpower_level [2021-11-21 00:21:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_txpower_level [2021-11-21 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:21:38,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:21:38,171 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bb_reg [2021-11-21 00:21:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bb_reg [2021-11-21 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_set_qos [2021-11-21 00:21:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_set_qos [2021-11-21 00:21:38,172 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_iq_calibrate [2021-11-21 00:21:38,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_iq_calibrate [2021-11-21 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_cam_add_one_entry [2021-11-21 00:21:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_cam_add_one_entry [2021-11-21 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_check_txpower_tracking [2021-11-21 00:21:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_check_txpower_tracking [2021-11-21 00:21:38,173 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_led [2021-11-21 00:21:38,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_led [2021-11-21 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_txpower_track_adjust [2021-11-21 00:21:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_txpower_track_adjust [2021-11-21 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_poweroff_adapter [2021-11-21 00:21:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_poweroff_adapter [2021-11-21 00:21:38,174 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_init_edca_turbo [2021-11-21 00:21:38,174 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_init_edca_turbo [2021-11-21 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-21 00:21:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_bcn_ctrl_reg [2021-11-21 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_init_sw_leds [2021-11-21 00:21:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_init_sw_leds [2021-11-21 00:21:38,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:21:38,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-21 00:21:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-21 00:21:38,176 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_hal_pwrseqcmdparsing [2021-11-21 00:21:38,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_hal_pwrseqcmdparsing [2021-11-21 00:21:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_enable_hw_security_config [2021-11-21 00:21:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_enable_hw_security_config [2021-11-21 00:21:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:21:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:21:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:21:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:21:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_DA [2021-11-21 00:21:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_DA [2021-11-21 00:21:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_rfreg [2021-11-21 00:21:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_rfreg [2021-11-21 00:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-21 00:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-21 00:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-21 00:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~$Pointer$~TO~VOID [2021-11-21 00:21:38,180 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 00:21:38,180 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 00:21:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_set_iqk_matrix [2021-11-21 00:21:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_set_iqk_matrix [2021-11-21 00:21:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_chk_tx_track [2021-11-21 00:21:38,181 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_chk_tx_track [2021-11-21 00:21:38,181 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_data_qos [2021-11-21 00:21:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_data_qos [2021-11-21 00:21:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_stop_tx_beacon [2021-11-21 00:21:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_stop_tx_beacon [2021-11-21 00:21:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_byte [2021-11-21 00:21:38,182 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_byte [2021-11-21 00:21:38,182 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_write_word [2021-11-21 00:21:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_write_word [2021-11-21 00:21:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:21:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:21:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_llt_write [2021-11-21 00:21:38,183 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_llt_write [2021-11-21 00:21:38,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:21:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:21:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_suspend [2021-11-21 00:21:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_suspend [2021-11-21 00:21:38,184 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_watchdog [2021-11-21 00:21:38,184 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_watchdog [2021-11-21 00:21:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 00:21:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 00:21:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_bw_mode [2021-11-21 00:21:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_bw_mode [2021-11-21 00:21:38,185 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_fast_ant_training [2021-11-21 00:21:38,185 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_fast_ant_training [2021-11-21 00:21:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure sim_comp [2021-11-21 00:21:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure sim_comp [2021-11-21 00:21:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_deinit_sw_vars [2021-11-21 00:21:38,186 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_deinit_sw_vars [2021-11-21 00:21:38,186 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_polling [2021-11-21 00:21:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_polling [2021-11-21 00:21:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:21:38,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-21 00:21:38,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-21 00:21:38,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:21:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_pi_mode_switch [2021-11-21 00:21:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_pi_mode_switch [2021-11-21 00:21:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure cal_bit_shift [2021-11-21 00:21:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_bit_shift [2021-11-21 00:21:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_enable_fw_download [2021-11-21 00:21:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_enable_fw_download [2021-11-21 00:21:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_is_ctl [2021-11-21 00:21:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_is_ctl [2021-11-21 00:21:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-21 00:21:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~TO~VOID [2021-11-21 00:21:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:21:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:21:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:21:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-21 00:21:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-21 00:21:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 00:21:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 00:21:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-21 00:21:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_ps_rf_on [2021-11-21 00:21:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-21 00:21:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-21 00:21:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count___6 [2021-11-21 00:21:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count___6 [2021-11-21 00:21:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:21:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:21:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_hw_init [2021-11-21 00:21:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_hw_init [2021-11-21 00:21:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure check_cond [2021-11-21 00:21:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure check_cond [2021-11-21 00:21:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_rfreg [2021-11-21 00:21:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_rfreg [2021-11-21 00:21:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-21 00:21:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_initial_gain_min_pwdb [2021-11-21 00:21:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_phy_iq_calibrate [2021-11-21 00:21:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_phy_iq_calibrate [2021-11-21 00:21:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-21 00:21:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-21 00:21:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_resume [2021-11-21 00:21:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_resume [2021-11-21 00:21:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-21 00:21:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~~u32~0 [2021-11-21 00:21:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_get_hw_reg [2021-11-21 00:21:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_get_hw_reg [2021-11-21 00:21:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_phy_scan_operation_backup [2021-11-21 00:21:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_phy_scan_operation_backup [2021-11-21 00:21:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 00:21:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 00:21:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 00:21:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 00:21:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_fill_h2c_cmd [2021-11-21 00:21:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_fill_h2c_cmd [2021-11-21 00:21:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88e_fw_page_write [2021-11-21 00:21:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88e_fw_page_write [2021-11-21 00:21:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_query_rxpwrpercentage [2021-11-21 00:21:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_query_rxpwrpercentage [2021-11-21 00:21:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_dm_update_tx_ant [2021-11-21 00:21:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_dm_update_tx_ant [2021-11-21 00:21:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:21:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure reload_adda [2021-11-21 00:21:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure reload_adda [2021-11-21 00:21:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:21:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:21:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_get_bbreg [2021-11-21 00:21:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_get_bbreg [2021-11-21 00:21:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_read_eeprom_info [2021-11-21 00:21:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_read_eeprom_info [2021-11-21 00:21:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_off [2021-11-21 00:21:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_off [2021-11-21 00:21:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_set_bbreg [2021-11-21 00:21:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_set_bbreg [2021-11-21 00:21:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-21 00:21:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-21 00:21:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_resume_tx_beacon [2021-11-21 00:21:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_resume_tx_beacon [2021-11-21 00:21:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_init_sw_vars [2021-11-21 00:21:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_init_sw_vars [2021-11-21 00:21:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-21 00:21:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-21 00:21:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88_config_s [2021-11-21 00:21:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88_config_s [2021-11-21 00:21:38,208 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-21 00:21:38,208 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-21 00:21:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-21 00:21:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-21 00:21:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:21:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:21:38,209 INFO L130 BoogieDeclarations]: Found specification of procedure config_bb_with_header [2021-11-21 00:21:38,209 INFO L138 BoogieDeclarations]: Found implementation of procedure config_bb_with_header [2021-11-21 00:21:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:21:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:21:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_read_dword [2021-11-21 00:21:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_read_dword [2021-11-21 00:21:38,210 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_media_status [2021-11-21 00:21:38,210 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_media_status [2021-11-21 00:21:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_fwlps_leave [2021-11-21 00:21:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_fwlps_leave [2021-11-21 00:21:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-21 00:21:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-21 00:21:38,211 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:21:38,211 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:21:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88ee_tx_fill_cmddesc [2021-11-21 00:21:38,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88ee_tx_fill_cmddesc [2021-11-21 00:21:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:21:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure rtl_pci_disconnect [2021-11-21 00:21:38,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl_pci_disconnect [2021-11-21 00:21:38,212 INFO L130 BoogieDeclarations]: Found specification of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-21 00:21:38,212 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl88e_phy_set_sw_chnl_cmdarray [2021-11-21 00:21:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:21:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:21:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure _rtl88ee_set_fw_clock_on [2021-11-21 00:21:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure _rtl88ee_set_fw_clock_on [2021-11-21 00:21:38,213 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-21 00:21:38,213 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-21 00:21:40,374 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:21:40,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:21:44,404 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:23:53,827 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:23:54,261 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:24:04,341 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:24:04,341 INFO L301 CfgBuilder]: Removed 19 assume(true) statements. [2021-11-21 00:24:04,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:24:04 BoogieIcfgContainer [2021-11-21 00:24:04,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:24:04,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:24:04,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:24:04,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:24:04,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:21:23" (1/3) ... [2021-11-21 00:24:04,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527e1d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:24:04, skipping insertion in model container [2021-11-21 00:24:04,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:35" (2/3) ... [2021-11-21 00:24:04,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527e1d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:24:04, skipping insertion in model container [2021-11-21 00:24:04,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:24:04" (3/3) ... [2021-11-21 00:24:04,373 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-wireless-rtlwifi-rtl8188ee-rtl8188ee.cil.i [2021-11-21 00:24:04,380 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:24:04,380 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:24:04,464 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:24:04,473 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 [2021-11-21 00:24:04,473 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:24:04,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) [2021-11-21 00:24:04,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-21 00:24:04,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:24:04,675 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:24:04,676 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] === [2021-11-21 00:24:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:24:04,688 INFO L85 PathProgramCache]: Analyzing trace with hash -302547200, now seen corresponding path program 1 times [2021-11-21 00:24:04,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:24:04,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990050798] [2021-11-21 00:24:04,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:24:04,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:24:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:24:07,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-21 00:24:07,007 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:24:07,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990050798] [2021-11-21 00:24:07,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990050798] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:24:07,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:24:07,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:24:07,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570891730] [2021-11-21 00:24:07,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:24:07,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:24:07,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:24:07,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:24:07,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:24:07,080 INFO L87 Difference]: Start difference. First operand has 6057 states, 3697 states have (on average 1.3716526913713822) internal successors, (5071), 3861 states have internal predecessors, (5071), 2203 states have call successors, (2203), 164 states have call predecessors, (2203), 163 states have return successors, (2193), 2124 states have call predecessors, (2193), 2193 states have call successors, (2193) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:24:10,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:13,545 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:15,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:18,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:21,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:24,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:26,161 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:28,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:31,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:33,096 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:35,514 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:37,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:39,696 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:40,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:24:40,625 INFO L93 Difference]: Finished difference Result 11521 states and 17773 transitions. [2021-11-21 00:24:40,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:24:40,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 293 [2021-11-21 00:24:40,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:24:40,732 INFO L225 Difference]: With dead ends: 11521 [2021-11-21 00:24:40,732 INFO L226 Difference]: Without dead ends: 6762 [2021-11-21 00:24:40,777 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 [2021-11-21 00:24:40,781 INFO L933 BasicCegarLoop]: 6627 mSDtfsCounter, 5694 mSDsluCounter, 5931 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 21 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5700 SdHoareTripleChecker+Valid, 11997 SdHoareTripleChecker+Invalid, 1199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:24:40,783 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5700 Valid, 11997 Invalid, 1199 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 1169 Invalid, 9 Unknown, 0 Unchecked, 32.8s Time] [2021-11-21 00:24:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2021-11-21 00:24:41,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6735. [2021-11-21 00:24:41,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 4302 states have (on average 1.3561134356113436) internal successors, (5834), 4433 states have internal predecessors, (5834), 2193 states have call successors, (2193), 239 states have call predecessors, (2193), 238 states have return successors, (2194), 2125 states have call predecessors, (2194), 2190 states have call successors, (2194) [2021-11-21 00:24:42,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 10221 transitions. [2021-11-21 00:24:42,040 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 10221 transitions. Word has length 293 [2021-11-21 00:24:42,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:24:42,047 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 10221 transitions. [2021-11-21 00:24:42,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:24:42,050 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 10221 transitions. [2021-11-21 00:24:42,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-21 00:24:42,068 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:24:42,069 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:24:42,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:24:42,070 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] === [2021-11-21 00:24:42,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:24:42,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1149505727, now seen corresponding path program 1 times [2021-11-21 00:24:42,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:24:42,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961730715] [2021-11-21 00:24:42,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:24:42,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:24:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:24:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2021-11-21 00:24:43,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:24:43,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961730715] [2021-11-21 00:24:43,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961730715] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:24:43,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:24:43,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:24:43,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937307287] [2021-11-21 00:24:43,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:24:43,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:24:43,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:24:43,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:24:43,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:24:43,303 INFO L87 Difference]: Start difference. First operand 6735 states and 10221 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:24:46,384 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:49,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:52,785 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:54,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:24:57,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:00,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:01,703 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:04,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:05,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:09,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:12,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:25:13,024 INFO L93 Difference]: Finished difference Result 19788 states and 30052 transitions. [2021-11-21 00:25:13,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:25:13,025 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 301 [2021-11-21 00:25:13,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:25:13,153 INFO L225 Difference]: With dead ends: 19788 [2021-11-21 00:25:13,153 INFO L226 Difference]: Without dead ends: 13108 [2021-11-21 00:25:13,197 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 [2021-11-21 00:25:13,198 INFO L933 BasicCegarLoop]: 5797 mSDtfsCounter, 4842 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 16 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 10483 SdHoareTripleChecker+Invalid, 1120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:25:13,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4846 Valid, 10483 Invalid, 1120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1097 Invalid, 7 Unknown, 0 Unchecked, 29.2s Time] [2021-11-21 00:25:13,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13108 states. [2021-11-21 00:25:14,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13108 to 13093. [2021-11-21 00:25:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13093 states, 8375 states have (on average 1.3553432835820896) internal successors, (11351), 8641 states have internal predecessors, (11351), 4256 states have call successors, (4256), 462 states have call predecessors, (4256), 460 states have return successors, (4263), 4115 states have call predecessors, (4263), 4253 states have call successors, (4263) [2021-11-21 00:25:14,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13093 states to 13093 states and 19870 transitions. [2021-11-21 00:25:14,724 INFO L78 Accepts]: Start accepts. Automaton has 13093 states and 19870 transitions. Word has length 301 [2021-11-21 00:25:14,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:25:14,730 INFO L470 AbstractCegarLoop]: Abstraction has 13093 states and 19870 transitions. [2021-11-21 00:25:14,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:25:14,730 INFO L276 IsEmpty]: Start isEmpty. Operand 13093 states and 19870 transitions. [2021-11-21 00:25:14,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-11-21 00:25:14,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:25:14,745 INFO L514 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 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] [2021-11-21 00:25:14,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:25:14,746 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] === [2021-11-21 00:25:14,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:25:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1145637007, now seen corresponding path program 1 times [2021-11-21 00:25:14,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:25:14,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810980371] [2021-11-21 00:25:14,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:25:14,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:25:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:25:15,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-21 00:25:15,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:25:15,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810980371] [2021-11-21 00:25:15,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810980371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:25:15,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:25:15,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:25:15,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634351190] [2021-11-21 00:25:15,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:25:15,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:25:15,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:25:15,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:25:15,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:25:15,637 INFO L87 Difference]: Start difference. First operand 13093 states and 19870 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-21 00:25:19,010 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:21,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:25,238 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:27,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:30,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:32,722 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:36,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:37,964 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:40,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:42,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:43,829 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:45,956 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:46,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:25:46,958 INFO L93 Difference]: Finished difference Result 38777 states and 58873 transitions. [2021-11-21 00:25:46,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:25:46,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 320 [2021-11-21 00:25:46,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:25:47,203 INFO L225 Difference]: With dead ends: 38777 [2021-11-21 00:25:47,204 INFO L226 Difference]: Without dead ends: 25739 [2021-11-21 00:25:47,294 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 [2021-11-21 00:25:47,301 INFO L933 BasicCegarLoop]: 5875 mSDtfsCounter, 4867 mSDsluCounter, 5207 mSDsCounter, 0 mSdLazyCounter, 1103 mSolverCounterSat, 12 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4871 SdHoareTripleChecker+Valid, 10572 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1103 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:25:47,303 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4871 Valid, 10572 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1103 Invalid, 9 Unknown, 0 Unchecked, 30.7s Time] [2021-11-21 00:25:47,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25739 states. [2021-11-21 00:25:49,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25739 to 25720. [2021-11-21 00:25:49,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25720 states, 16469 states have (on average 1.3546056226850447) internal successors, (22309), 17008 states have internal predecessors, (22309), 8350 states have call successors, (8350), 902 states have call predecessors, (8350), 899 states have return successors, (8369), 8061 states have call predecessors, (8369), 8347 states have call successors, (8369) [2021-11-21 00:25:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25720 states to 25720 states and 39028 transitions. [2021-11-21 00:25:50,073 INFO L78 Accepts]: Start accepts. Automaton has 25720 states and 39028 transitions. Word has length 320 [2021-11-21 00:25:50,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:25:50,074 INFO L470 AbstractCegarLoop]: Abstraction has 25720 states and 39028 transitions. [2021-11-21 00:25:50,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-21 00:25:50,075 INFO L276 IsEmpty]: Start isEmpty. Operand 25720 states and 39028 transitions. [2021-11-21 00:25:50,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-11-21 00:25:50,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:25:50,094 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 5, 5, 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] [2021-11-21 00:25:50,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:25:50,095 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] === [2021-11-21 00:25:50,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:25:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1171806884, now seen corresponding path program 1 times [2021-11-21 00:25:50,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:25:50,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378345612] [2021-11-21 00:25:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:25:50,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:25:50,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:25:51,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3070 trivial. 0 not checked. [2021-11-21 00:25:51,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:25:51,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378345612] [2021-11-21 00:25:51,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378345612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:25:51,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:25:51,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:25:51,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058291436] [2021-11-21 00:25:51,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:25:51,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:25:51,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:25:51,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:25:51,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:25:51,671 INFO L87 Difference]: Start difference. First operand 25720 states and 39028 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 00:25:54,963 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:25:58,802 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:01,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:04,627 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:06,846 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:12,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:14,795 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:16,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:19,337 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:21,375 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:23,544 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:24,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:26:24,959 INFO L93 Difference]: Finished difference Result 41669 states and 63228 transitions. [2021-11-21 00:26:24,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:26:24,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 337 [2021-11-21 00:26:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:26:25,240 INFO L225 Difference]: With dead ends: 41669 [2021-11-21 00:26:25,240 INFO L226 Difference]: Without dead ends: 41630 [2021-11-21 00:26:25,262 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 [2021-11-21 00:26:25,265 INFO L933 BasicCegarLoop]: 5941 mSDtfsCounter, 4962 mSDsluCounter, 11661 mSDsCounter, 0 mSdLazyCounter, 1652 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4968 SdHoareTripleChecker+Valid, 16520 SdHoareTripleChecker+Invalid, 1660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1652 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:26:25,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4968 Valid, 16520 Invalid, 1660 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1652 Invalid, 8 Unknown, 0 Unchecked, 32.3s Time] [2021-11-21 00:26:25,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41630 states. [2021-11-21 00:26:29,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41630 to 41622. [2021-11-21 00:26:29,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41622 states, 26659 states have (on average 1.3542893581904798) internal successors, (36104), 27529 states have internal predecessors, (36104), 13503 states have call successors, (13503), 1461 states have call predecessors, (13503), 1458 states have return successors, (13542), 13038 states have call predecessors, (13542), 13500 states have call successors, (13542) [2021-11-21 00:26:29,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41622 states to 41622 states and 63149 transitions. [2021-11-21 00:26:29,334 INFO L78 Accepts]: Start accepts. Automaton has 41622 states and 63149 transitions. Word has length 337 [2021-11-21 00:26:29,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:26:29,335 INFO L470 AbstractCegarLoop]: Abstraction has 41622 states and 63149 transitions. [2021-11-21 00:26:29,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-21 00:26:29,336 INFO L276 IsEmpty]: Start isEmpty. Operand 41622 states and 63149 transitions. [2021-11-21 00:26:29,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-21 00:26:29,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:26:29,376 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 4, 4, 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] [2021-11-21 00:26:29,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:26:29,377 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] === [2021-11-21 00:26:29,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:26:29,378 INFO L85 PathProgramCache]: Analyzing trace with hash 985489588, now seen corresponding path program 1 times [2021-11-21 00:26:29,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:26:29,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694063251] [2021-11-21 00:26:29,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:26:29,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:26:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:26:30,579 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3054 trivial. 0 not checked. [2021-11-21 00:26:30,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:26:30,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694063251] [2021-11-21 00:26:30,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694063251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:26:30,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:26:30,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:26:30,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442146962] [2021-11-21 00:26:30,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:26:30,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:26:30,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:26:30,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:26:30,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:26:30,594 INFO L87 Difference]: Start difference. First operand 41622 states and 63149 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-21 00:26:33,959 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:37,092 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:39,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:41,554 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:43,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:45,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:49,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:51,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:55,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:56,594 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:26:59,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:01,936 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:03,332 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:05,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:06,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:27:06,565 INFO L93 Difference]: Finished difference Result 79862 states and 121172 transitions. [2021-11-21 00:27:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:27:06,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 350 [2021-11-21 00:27:06,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:27:07,024 INFO L225 Difference]: With dead ends: 79862 [2021-11-21 00:27:07,024 INFO L226 Difference]: Without dead ends: 54068 [2021-11-21 00:27:07,130 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 [2021-11-21 00:27:07,131 INFO L933 BasicCegarLoop]: 9008 mSDtfsCounter, 4731 mSDsluCounter, 5190 mSDsCounter, 0 mSdLazyCounter, 1536 mSolverCounterSat, 15 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 13692 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1536 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:27:07,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4735 Valid, 13692 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1536 Invalid, 9 Unknown, 0 Unchecked, 34.7s Time] [2021-11-21 00:27:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54068 states. [2021-11-21 00:27:10,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54068 to 54044. [2021-11-21 00:27:10,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54044 states, 34609 states have (on average 1.354214221734231) internal successors, (46868), 35755 states have internal predecessors, (46868), 17527 states have call successors, (17527), 1911 states have call predecessors, (17527), 1906 states have return successors, (17578), 16910 states have call predecessors, (17578), 17524 states have call successors, (17578) [2021-11-21 00:27:10,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54044 states to 54044 states and 81973 transitions. [2021-11-21 00:27:10,696 INFO L78 Accepts]: Start accepts. Automaton has 54044 states and 81973 transitions. Word has length 350 [2021-11-21 00:27:10,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:27:10,697 INFO L470 AbstractCegarLoop]: Abstraction has 54044 states and 81973 transitions. [2021-11-21 00:27:10,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2021-11-21 00:27:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 54044 states and 81973 transitions. [2021-11-21 00:27:10,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-11-21 00:27:10,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:27:10,748 INFO L514 BasicCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:27:10,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:27:10,748 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] === [2021-11-21 00:27:10,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:27:10,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1975870483, now seen corresponding path program 1 times [2021-11-21 00:27:10,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:27:10,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957177527] [2021-11-21 00:27:10,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:27:10,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:27:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:27:12,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2925 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2921 trivial. 0 not checked. [2021-11-21 00:27:12,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:27:12,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957177527] [2021-11-21 00:27:12,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957177527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:27:12,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:27:12,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:27:12,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65358762] [2021-11-21 00:27:12,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:27:12,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:27:12,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:27:12,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:27:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:27:12,097 INFO L87 Difference]: Start difference. First operand 54044 states and 81973 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-21 00:27:15,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:19,386 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:21,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:24,040 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:26,736 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:28,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:31,070 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:33,370 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:35,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:38,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:39,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:41,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:44,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:27:44,160 INFO L93 Difference]: Finished difference Result 119343 states and 180655 transitions. [2021-11-21 00:27:44,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:27:44,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 368 [2021-11-21 00:27:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:27:44,475 INFO L225 Difference]: With dead ends: 119343 [2021-11-21 00:27:44,475 INFO L226 Difference]: Without dead ends: 65354 [2021-11-21 00:27:44,645 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 [2021-11-21 00:27:44,647 INFO L933 BasicCegarLoop]: 5566 mSDtfsCounter, 3247 mSDsluCounter, 5098 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3249 SdHoareTripleChecker+Valid, 10182 SdHoareTripleChecker+Invalid, 1221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:27:44,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3249 Valid, 10182 Invalid, 1221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1198 Invalid, 8 Unknown, 0 Unchecked, 30.3s Time] [2021-11-21 00:27:44,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65354 states. [2021-11-21 00:27:48,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65354 to 65319. [2021-11-21 00:27:48,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65319 states, 41595 states have (on average 1.3463397042913812) internal successors, (56001), 43082 states have internal predecessors, (56001), 21255 states have call successors, (21255), 2476 states have call predecessors, (21255), 2467 states have return successors, (21306), 20443 states have call predecessors, (21306), 21252 states have call successors, (21306) [2021-11-21 00:27:49,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65319 states to 65319 states and 98562 transitions. [2021-11-21 00:27:49,091 INFO L78 Accepts]: Start accepts. Automaton has 65319 states and 98562 transitions. Word has length 368 [2021-11-21 00:27:49,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:27:49,092 INFO L470 AbstractCegarLoop]: Abstraction has 65319 states and 98562 transitions. [2021-11-21 00:27:49,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2021-11-21 00:27:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 65319 states and 98562 transitions. [2021-11-21 00:27:49,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-21 00:27:49,148 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:27:49,149 INFO L514 BasicCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 6, 6, 3, 3, 3, 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] [2021-11-21 00:27:49,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:27:49,149 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] === [2021-11-21 00:27:49,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:27:49,150 INFO L85 PathProgramCache]: Analyzing trace with hash 131462377, now seen corresponding path program 1 times [2021-11-21 00:27:49,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:27:49,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072705115] [2021-11-21 00:27:49,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:27:49,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:27:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:27:50,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3159 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3152 trivial. 0 not checked. [2021-11-21 00:27:50,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:27:50,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072705115] [2021-11-21 00:27:50,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072705115] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:27:50,206 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:27:50,206 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:27:50,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496543141] [2021-11-21 00:27:50,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:27:50,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:27:50,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:27:50,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:27:50,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:27:50,208 INFO L87 Difference]: Start difference. First operand 65319 states and 98562 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 00:27:53,227 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:27:56,093 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:00,039 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:03,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:06,159 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:08,208 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:10,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:14,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:16,755 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:19,145 INFO L93 Difference]: Finished difference Result 159809 states and 241258 transitions. [2021-11-21 00:28:19,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:28:19,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 381 [2021-11-21 00:28:19,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:19,752 INFO L225 Difference]: With dead ends: 159809 [2021-11-21 00:28:19,752 INFO L226 Difference]: Without dead ends: 96531 [2021-11-21 00:28:20,298 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 [2021-11-21 00:28:20,299 INFO L933 BasicCegarLoop]: 9124 mSDtfsCounter, 4866 mSDsluCounter, 5204 mSDsCounter, 0 mSdLazyCounter, 1545 mSolverCounterSat, 9 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 13819 SdHoareTripleChecker+Invalid, 1562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1545 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:20,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4870 Valid, 13819 Invalid, 1562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1545 Invalid, 8 Unknown, 0 Unchecked, 26.3s Time] [2021-11-21 00:28:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96531 states. [2021-11-21 00:28:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96531 to 96493. [2021-11-21 00:28:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96493 states, 61461 states have (on average 1.3462358243438928) internal successors, (82741), 63682 states have internal predecessors, (82741), 31395 states have call successors, (31395), 3648 states have call predecessors, (31395), 3635 states have return successors, (31473), 30175 states have call predecessors, (31473), 31392 states have call successors, (31473) [2021-11-21 00:28:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96493 states to 96493 states and 145609 transitions. [2021-11-21 00:28:27,671 INFO L78 Accepts]: Start accepts. Automaton has 96493 states and 145609 transitions. Word has length 381 [2021-11-21 00:28:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:27,672 INFO L470 AbstractCegarLoop]: Abstraction has 96493 states and 145609 transitions. [2021-11-21 00:28:27,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-21 00:28:27,673 INFO L276 IsEmpty]: Start isEmpty. Operand 96493 states and 145609 transitions. [2021-11-21 00:28:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-11-21 00:28:27,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:27,802 INFO L514 BasicCegarLoop]: trace histogram [34, 27, 27, 27, 27, 27, 27, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:27,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:28:27,802 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] === [2021-11-21 00:28:27,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:27,803 INFO L85 PathProgramCache]: Analyzing trace with hash -843294425, now seen corresponding path program 1 times [2021-11-21 00:28:27,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:27,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137823185] [2021-11-21 00:28:27,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:27,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3311 trivial. 0 not checked. [2021-11-21 00:28:29,064 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:29,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137823185] [2021-11-21 00:28:29,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137823185] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:29,065 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:29,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:29,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9096146] [2021-11-21 00:28:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:29,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:29,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:29,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:29,067 INFO L87 Difference]: Start difference. First operand 96493 states and 145609 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 00:28:32,041 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:34,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:38,148 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:41,608 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:44,838 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:46,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:49,804 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:52,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:54,977 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:58,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:58,046 INFO L93 Difference]: Finished difference Result 96756 states and 146019 transitions. [2021-11-21 00:28:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:28:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 404 [2021-11-21 00:28:58,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:58,504 INFO L225 Difference]: With dead ends: 96756 [2021-11-21 00:28:58,505 INFO L226 Difference]: Without dead ends: 96754 [2021-11-21 00:28:58,560 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 [2021-11-21 00:28:58,561 INFO L933 BasicCegarLoop]: 5851 mSDtfsCounter, 4912 mSDsluCounter, 11546 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 16338 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:58,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4918 Valid, 16338 Invalid, 1616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1607 Invalid, 8 Unknown, 0 Unchecked, 26.9s Time] [2021-11-21 00:28:58,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96754 states. [2021-11-21 00:29:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96754 to 96511. [2021-11-21 00:29:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96511 states, 61475 states have (on average 1.3461569743798292) internal successors, (82755), 63697 states have internal predecessors, (82755), 31398 states have call successors, (31398), 3649 states have call predecessors, (31398), 3636 states have return successors, (31476), 30177 states have call predecessors, (31476), 31395 states have call successors, (31476) [2021-11-21 00:29:05,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96511 states to 96511 states and 145629 transitions. [2021-11-21 00:29:05,181 INFO L78 Accepts]: Start accepts. Automaton has 96511 states and 145629 transitions. Word has length 404 [2021-11-21 00:29:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:05,182 INFO L470 AbstractCegarLoop]: Abstraction has 96511 states and 145629 transitions. [2021-11-21 00:29:05,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-21 00:29:05,182 INFO L276 IsEmpty]: Start isEmpty. Operand 96511 states and 145629 transitions. [2021-11-21 00:29:05,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-21 00:29:05,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:05,290 INFO L514 BasicCegarLoop]: trace histogram [33, 27, 27, 27, 27, 27, 27, 8, 8, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:05,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:29:05,290 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:29:05,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:05,291 INFO L85 PathProgramCache]: Analyzing trace with hash 692368884, now seen corresponding path program 1 times [2021-11-21 00:29:05,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:05,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108237789] [2021-11-21 00:29:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:05,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3272 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3254 trivial. 0 not checked. [2021-11-21 00:29:06,428 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:06,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108237789] [2021-11-21 00:29:06,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108237789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:06,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:06,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:06,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148872721] [2021-11-21 00:29:06,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:06,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:06,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:06,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:06,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:06,432 INFO L87 Difference]: Start difference. First operand 96511 states and 145629 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-21 00:29:09,550 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:12,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:15,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:17,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:20,630 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:23,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:25,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:27,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:30,532 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:33,354 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:35,000 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:37,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:39,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:42,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:42,783 INFO L93 Difference]: Finished difference Result 228403 states and 344490 transitions. [2021-11-21 00:29:42,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:42,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2021-11-21 00:29:42,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:43,645 INFO L225 Difference]: With dead ends: 228403 [2021-11-21 00:29:43,645 INFO L226 Difference]: Without dead ends: 133933 [2021-11-21 00:29:43,867 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 [2021-11-21 00:29:43,868 INFO L933 BasicCegarLoop]: 7652 mSDtfsCounter, 3245 mSDsluCounter, 5095 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 12 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3248 SdHoareTripleChecker+Valid, 12266 SdHoareTripleChecker+Invalid, 1496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:43,869 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3248 Valid, 12266 Invalid, 1496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1475 Invalid, 9 Unknown, 0 Unchecked, 33.0s Time] [2021-11-21 00:29:43,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133933 states. [2021-11-21 00:29:51,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133933 to 133886. [2021-11-21 00:29:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133886 states, 85099 states have (on average 1.3431297665072446) internal successors, (114299), 88248 states have internal predecessors, (114299), 43622 states have call successors, (43622), 5182 states have call predecessors, (43622), 5163 states have return successors, (43736), 41882 states have call predecessors, (43736), 43619 states have call successors, (43736) [2021-11-21 00:29:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133886 states to 133886 states and 201657 transitions. [2021-11-21 00:29:52,341 INFO L78 Accepts]: Start accepts. Automaton has 133886 states and 201657 transitions. Word has length 420 [2021-11-21 00:29:52,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:52,342 INFO L470 AbstractCegarLoop]: Abstraction has 133886 states and 201657 transitions. [2021-11-21 00:29:52,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-21 00:29:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 133886 states and 201657 transitions. [2021-11-21 00:29:52,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-21 00:29:52,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:52,479 INFO L514 BasicCegarLoop]: trace histogram [35, 27, 27, 27, 27, 27, 27, 8, 8, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:52,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:29:52,480 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:29:52,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:52,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1714915677, now seen corresponding path program 1 times [2021-11-21 00:29:52,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:52,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052491293] [2021-11-21 00:29:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:52,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3434 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 3395 trivial. 0 not checked. [2021-11-21 00:29:53,697 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:53,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052491293] [2021-11-21 00:29:53,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052491293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:53,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:53,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:53,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232143517] [2021-11-21 00:29:53,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:53,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:53,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:53,700 INFO L87 Difference]: Start difference. First operand 133886 states and 201657 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 00:29:56,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:59,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:06,981 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:09,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:12,511 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:14,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:16,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:18,720 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:22,030 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:26,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:27,952 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:30,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:39,016 INFO L93 Difference]: Finished difference Result 335205 states and 504546 transitions. [2021-11-21 00:30:39,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:30:39,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 444 [2021-11-21 00:30:39,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted.