./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29a7e817473ff71ca0ce15ee79b62174fdfc2ea425c0e0501fe9f23359e3d7bd --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:43:36,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:43:36,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:43:36,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:43:36,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:43:36,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:43:36,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:43:36,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:43:36,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:43:36,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:43:36,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:43:36,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:43:36,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:43:36,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:43:36,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:43:36,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:43:36,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:43:36,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:43:36,657 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:43:36,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:43:36,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:43:36,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:43:36,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:43:36,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:43:36,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:43:36,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:43:36,677 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:43:36,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:43:36,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:43:36,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:43:36,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:43:36,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:43:36,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:43:36,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:43:36,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:43:36,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:43:36,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:43:36,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:43:36,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:43:36,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:43:36,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:43:36,687 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 03:43:36,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:43:36,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:43:36,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:43:36,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:43:36,714 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:43:36,714 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:43:36,714 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:43:36,715 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:43:36,715 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:43:36,715 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:43:36,715 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:43:36,715 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:43:36,716 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:43:36,716 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:43:36,716 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:43:36,716 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:43:36,716 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:43:36,717 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:43:36,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:43:36,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:43:36,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:43:36,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:43:36,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:43:36,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:43:36,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:43:36,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:43:36,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:43:36,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:43:36,720 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:43:36,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:43:36,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:43:36,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:43:36,721 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:43:36,721 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_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29a7e817473ff71ca0ce15ee79b62174fdfc2ea425c0e0501fe9f23359e3d7bd [2021-11-23 03:43:36,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:43:36,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:43:36,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:43:36,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:43:36,981 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:43:36,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i [2021-11-23 03:43:37,051 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/data/12b8ef20d/bdf3ead097694e73bad4e5eb5bafa8fb/FLAG49f76c21e [2021-11-23 03:43:38,213 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:43:38,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i [2021-11-23 03:43:38,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/data/12b8ef20d/bdf3ead097694e73bad4e5eb5bafa8fb/FLAG49f76c21e [2021-11-23 03:43:38,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/data/12b8ef20d/bdf3ead097694e73bad4e5eb5bafa8fb [2021-11-23 03:43:38,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:43:38,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:43:38,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:43:38,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:43:38,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:43:38,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:38" (1/1) ... [2021-11-23 03:43:38,429 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b08809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:38, skipping insertion in model container [2021-11-23 03:43:38,429 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:43:38" (1/1) ... [2021-11-23 03:43:38,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:43:38,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:43:46,203 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660503,660516] [2021-11-23 03:43:46,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660650,660663] [2021-11-23 03:43:46,207 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660789,660802] [2021-11-23 03:43:46,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660947,660960] [2021-11-23 03:43:46,251 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:43:46,362 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:43:47,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660503,660516] [2021-11-23 03:43:47,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660650,660663] [2021-11-23 03:43:47,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660789,660802] [2021-11-23 03:43:47,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i[660947,660960] [2021-11-23 03:43:47,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:43:47,854 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:43:47,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47 WrapperNode [2021-11-23 03:43:47,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:43:47,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:43:47,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:43:47,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:43:47,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:48,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:48,851 INFO L137 Inliner]: procedures = 726, calls = 8466, calls flagged for inlining = 400, calls inlined = 359, statements flattened = 16745 [2021-11-23 03:43:48,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:43:48,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:43:48,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:43:48,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:43:48,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:48,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,783 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:43:49,784 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:43:49,784 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:43:49,784 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:43:49,785 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (1/1) ... [2021-11-23 03:43:49,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:43:49,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:43:49,822 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:43:49,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07cdc93d-2dc8-47f9-bc11-a77be158aa7a/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:43:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 03:43:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 03:43:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resolve_flow_ctrl [2021-11-23 03:43:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resolve_flow_ctrl [2021-11-23 03:43:49,870 INFO L130 BoogieDeclarations]: Found specification of procedure load_rv2p_fw [2021-11-23 03:43:49,870 INFO L138 BoogieDeclarations]: Found implementation of procedure load_rv2p_fw [2021-11-23 03:43:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_bmsr1 [2021-11-23 03:43:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_bmsr1 [2021-11-23 03:43:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-23 03:43:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-23 03:43:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-23 03:43:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-23 03:43:49,871 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int [2021-11-23 03:43:49,871 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int [2021-11-23 03:43:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 03:43:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 03:43:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 03:43:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 03:43:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-23 03:43:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-23 03:43:49,872 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rxbd_rings [2021-11-23 03:43:49,872 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rxbd_rings [2021-11-23 03:43:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read_dword [2021-11-23 03:43:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read_dword [2021-11-23 03:43:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-23 03:43:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-23 03:43:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure get_l2_fhdr [2021-11-23 03:43:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure get_l2_fhdr [2021-11-23 03:43:49,873 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_stop [2021-11-23 03:43:49,873 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_stop [2021-11-23 03:43:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 03:43:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 03:43:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_start [2021-11-23 03:43:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_start [2021-11-23 03:43:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_int_mode [2021-11-23 03:43:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_int_mode [2021-11-23 03:43:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-23 03:43:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-23 03:43:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_bmsr1 [2021-11-23 03:43:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_bmsr1 [2021-11-23 03:43:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_forced_2g5 [2021-11-23 03:43:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_forced_2g5 [2021-11-23 03:43:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-23 03:43:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-23 03:43:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_xceiver_str [2021-11-23 03:43:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_xceiver_str [2021-11-23 03:43:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_rx_context [2021-11-23 03:43:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_rx_context [2021-11-23 03:43:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 03:43:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 03:43:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-23 03:43:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-23 03:43:49,878 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 03:43:49,878 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 03:43:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_resume [2021-11-23 03:43:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_resume [2021-11-23 03:43:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_pcie_error_reporting [2021-11-23 03:43:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_pcie_error_reporting [2021-11-23 03:43:49,879 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_ctx_wr [2021-11-23 03:43:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_ctx_wr [2021-11-23 03:43:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-23 03:43:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-23 03:43:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_bnx2_pci_driver_exit_16_2 [2021-11-23 03:43:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_bnx2_pci_driver_exit_16_2 [2021-11-23 03:43:49,880 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 03:43:49,880 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 03:43:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_remote_phy [2021-11-23 03:43:49,881 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_remote_phy [2021-11-23 03:43:49,881 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_data [2021-11-23 03:43:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_data [2021-11-23 03:43:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_phy [2021-11-23 03:43:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_phy [2021-11-23 03:43:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-23 03:43:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-23 03:43:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:43:49,882 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 03:43:49,882 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 03:43:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 03:43:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 03:43:49,883 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 03:43:49,883 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 03:43:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 03:43:49,884 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 03:43:49,884 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 03:43:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 03:43:49,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 03:43:49,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 03:43:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-23 03:43:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-23 03:43:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:43:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_napi [2021-11-23 03:43:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_napi [2021-11-23 03:43:49,886 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_read_phy [2021-11-23 03:43:49,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_read_phy [2021-11-23 03:43:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 03:43:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 03:43:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-23 03:43:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-23 03:43:49,887 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_request_irq [2021-11-23 03:43:49,887 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_request_irq [2021-11-23 03:43:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-23 03:43:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-23 03:43:49,888 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_wr_ind [2021-11-23 03:43:49,888 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_wr_ind [2021-11-23 03:43:49,889 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-23 03:43:49,889 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-23 03:43:49,892 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 03:43:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 03:43:49,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 03:43:49,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 03:43:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-23 03:43:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-23 03:43:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 03:43:49,894 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-23 03:43:49,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-23 03:43:49,900 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2021-11-23 03:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2021-11-23 03:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_mode [2021-11-23 03:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_mode [2021-11-23 03:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_intr [2021-11-23 03:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_intr [2021-11-23 03:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 03:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 03:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nic [2021-11-23 03:43:49,901 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nic [2021-11-23 03:43:49,901 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 03:43:49,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 03:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_wol [2021-11-23 03:43:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_wol [2021-11-23 03:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 03:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 03:43:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 03:43:49,903 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_addr [2021-11-23 03:43:49,903 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_addr [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_nic [2021-11-23 03:43:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_nic [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2021-11-23 03:43:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_msi [2021-11-23 03:43:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_msi [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 03:43:49,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 03:43:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2021-11-23 03:43:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2021-11-23 03:43:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 03:43:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 03:43:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_skbs [2021-11-23 03:43:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_skbs [2021-11-23 03:43:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 03:43:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 03:43:49,905 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_channels [2021-11-23 03:43:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_channels [2021-11-23 03:43:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure __bnx2_free_irq [2021-11-23 03:43:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __bnx2_free_irq [2021-11-23 03:43:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_and_enable_2g5 [2021-11-23 03:43:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_and_enable_2g5 [2021-11-23 03:43:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-23 03:43:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-23 03:43:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 03:43:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 03:43:49,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 03:43:49,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 03:43:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-23 03:43:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-23 03:43:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_msix_tbl [2021-11-23 03:43:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_msix_tbl [2021-11-23 03:43:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_int_sync [2021-11-23 03:43:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_int_sync [2021-11-23 03:43:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-23 03:43:49,907 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-23 03:43:49,907 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_open [2021-11-23 03:43:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_open [2021-11-23 03:43:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_chip [2021-11-23 03:43:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_chip [2021-11-23 03:43:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_del_napi [2021-11-23 03:43:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_del_napi [2021-11-23 03:43:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-23 03:43:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-23 03:43:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_settings [2021-11-23 03:43:49,908 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_settings [2021-11-23 03:43:49,908 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 03:43:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 03:43:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-23 03:43:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-23 03:43:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure check_mips_fw_entry [2021-11-23 03:43:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure check_mips_fw_entry [2021-11-23 03:43:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_cnic_start [2021-11-23 03:43:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_cnic_start [2021-11-23 03:43:49,909 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_rd [2021-11-23 03:43:49,909 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_rd [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_mac_link [2021-11-23 03:43:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_mac_link [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 03:43:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 03:43:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 03:43:49,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 03:43:49,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 03:43:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 03:43:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 03:43:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 03:43:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 03:43:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 03:43:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_enable [2021-11-23 03:43:49,911 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_enable [2021-11-23 03:43:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:43:49,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 03:43:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 03:43:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-23 03:43:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_wol [2021-11-23 03:43:49,912 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_wol [2021-11-23 03:43:49,912 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:43:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 03:43:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_pauseparam [2021-11-23 03:43:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_pauseparam [2021-11-23 03:43:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-23 03:43:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-23 03:43:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:43:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 03:43:49,913 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_timeout [2021-11-23 03:43:49,913 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_timeout [2021-11-23 03:43:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_one [2021-11-23 03:43:49,914 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_one [2021-11-23 03:43:49,914 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 03:43:49,915 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 03:43:49,918 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 03:43:49,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-23 03:43:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_find_info_keyword [2021-11-23 03:43:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_find_info_keyword [2021-11-23 03:43:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-23 03:43:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-23 03:43:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_acquire_nvram_lock [2021-11-23 03:43:49,919 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_acquire_nvram_lock [2021-11-23 03:43:49,919 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_remove_one [2021-11-23 03:43:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_remove_one [2021-11-23 03:43:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 03:43:49,920 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 03:43:49,920 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 03:43:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 03:43:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-23 03:43:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-23 03:43:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 03:43:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 03:43:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2021-11-23 03:43:49,921 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2021-11-23 03:43:49,921 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2021-11-23 03:43:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2021-11-23 03:43:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 03:43:49,922 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 03:43:49,922 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_access [2021-11-23 03:43:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_access [2021-11-23 03:43:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-23 03:43:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-23 03:43:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 03:43:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 03:43:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure check_fw_section [2021-11-23 03:43:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fw_section [2021-11-23 03:43:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_settings [2021-11-23 03:43:49,923 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_settings [2021-11-23 03:43:49,923 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2021-11-23 03:43:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2021-11-23 03:43:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_run_loopback [2021-11-23 03:43:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_run_loopback [2021-11-23 03:43:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-23 03:43:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-23 03:43:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_napi_disable [2021-11-23 03:43:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_napi_disable [2021-11-23 03:43:49,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:43:49,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-23 03:43:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 03:43:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_write_dword [2021-11-23 03:43:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_write_dword [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 03:43:49,925 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 03:43:49,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 03:43:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_link [2021-11-23 03:43:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_link [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 03:43:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 03:43:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_int [2021-11-23 03:43:49,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_int [2021-11-23 03:43:49,926 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 03:43:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 03:43:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 03:43:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 03:43:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 03:43:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 03:43:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 03:43:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 03:43:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 03:43:49,927 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 03:43:49,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 03:43:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_nvram_access [2021-11-23 03:43:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_nvram_access [2021-11-23 03:43:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_mem [2021-11-23 03:43:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_mem [2021-11-23 03:43:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-23 03:43:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-23 03:43:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 03:43:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 03:43:49,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:43:49,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:43:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_nvram_lock [2021-11-23 03:43:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_nvram_lock [2021-11-23 03:43:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 03:43:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 03:43:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nway_reset [2021-11-23 03:43:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nway_reset [2021-11-23 03:43:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-11-23 03:43:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-11-23 03:43:49,929 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_work [2021-11-23 03:43:49,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_work [2021-11-23 03:43:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_has_fast_work [2021-11-23 03:43:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_has_fast_work [2021-11-23 03:43:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-23 03:43:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-23 03:43:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-23 03:43:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-23 03:43:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_tx_avail [2021-11-23 03:43:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_tx_avail [2021-11-23 03:43:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_test_link [2021-11-23 03:43:49,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_test_link [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 03:43:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 03:43:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_report_link [2021-11-23 03:43:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_report_link [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reset_phy [2021-11-23 03:43:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reset_phy [2021-11-23 03:43:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_phy [2021-11-23 03:43:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_phy [2021-11-23 03:43:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 03:43:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 03:43:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_rx_cons [2021-11-23 03:43:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_rx_cons [2021-11-23 03:43:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 03:43:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 03:43:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_nvram [2021-11-23 03:43:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_nvram [2021-11-23 03:43:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2021-11-23 03:43:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2021-11-23 03:43:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:43:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_ring_size [2021-11-23 03:43:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_ring_size [2021-11-23 03:43:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_power_state [2021-11-23 03:43:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_power_state [2021-11-23 03:43:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure load_cpu_fw [2021-11-23 03:43:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure load_cpu_fw [2021-11-23 03:43:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2021-11-23 03:43:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_remote_link [2021-11-23 03:43:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_remote_link [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_io_resume [2021-11-23 03:43:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_io_resume [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_write_phy [2021-11-23 03:43:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_write_phy [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_hw_tx_cons [2021-11-23 03:43:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_hw_tx_cons [2021-11-23 03:43:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure pci_vpd_info_field_size [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_vpd_info_field_size [2021-11-23 03:43:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 03:43:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 03:43:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_fw_sync [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_fw_sync [2021-11-23 03:43:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shmem_wr [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shmem_wr [2021-11-23 03:43:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 03:43:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 03:43:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_5706s_force_link_dn [2021-11-23 03:43:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_5706s_force_link_dn [2021-11-23 03:43:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 03:43:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 03:43:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-23 03:43:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-23 03:43:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_default_link [2021-11-23 03:43:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_default_link [2021-11-23 03:43:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 03:43:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 03:43:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_phy_get_pause_adv [2021-11-23 03:43:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_phy_get_pause_adv [2021-11-23 03:43:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 03:43:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 03:43:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_remote_phy_event [2021-11-23 03:43:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_remote_phy_event [2021-11-23 03:43:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-23 03:43:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-23 03:43:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_nvram_read [2021-11-23 03:43:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_nvram_read [2021-11-23 03:43:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 03:43:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 03:43:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_change_mac_addr [2021-11-23 03:43:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_change_mac_addr [2021-11-23 03:43:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_init_fw_cap [2021-11-23 03:43:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_init_fw_cap [2021-11-23 03:43:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_reg_rd_ind [2021-11-23 03:43:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_reg_rd_ind [2021-11-23 03:43:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-23 03:43:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_enable_nvram_write [2021-11-23 03:43:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_enable_nvram_write [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-23 03:43:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 03:43:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 03:43:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 03:43:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 03:43:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-23 03:43:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-23 03:43:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_setup_cnic_irq_info [2021-11-23 03:43:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_setup_cnic_irq_info [2021-11-23 03:43:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 03:43:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 03:43:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shutdown [2021-11-23 03:43:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shutdown [2021-11-23 03:43:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_suspend [2021-11-23 03:43:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_suspend [2021-11-23 03:43:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_disable_forced_2g5 [2021-11-23 03:43:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_disable_forced_2g5 [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 03:43:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_netif_stop [2021-11-23 03:43:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_netif_stop [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_ringparam [2021-11-23 03:43:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_ringparam [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 03:43:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 03:43:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_find_max_ring [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_find_max_ring [2021-11-23 03:43:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_coalesce [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_coalesce [2021-11-23 03:43:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_send_heart_beat [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_send_heart_beat [2021-11-23 03:43:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 03:43:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_rx_page [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_rx_page [2021-11-23 03:43:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_eeprom_len [2021-11-23 03:43:49,942 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_eeprom_len [2021-11-23 03:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 03:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 03:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-23 03:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-23 03:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-23 03:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-23 03:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_release_firmware [2021-11-23 03:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_release_firmware [2021-11-23 03:43:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 03:43:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 03:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_shutdown_chip [2021-11-23 03:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_shutdown_chip [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_get_regs_len [2021-11-23 03:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_get_regs_len [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_alloc_mem [2021-11-23 03:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_alloc_mem [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_close [2021-11-23 03:43:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_close [2021-11-23 03:43:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 03:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 03:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 03:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 03:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_coalesce [2021-11-23 03:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_coalesce [2021-11-23 03:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-23 03:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-23 03:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-23 03:43:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-23 03:43:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-23 03:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 03:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-23 03:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 03:43:49,946 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:43:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_free_irq [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_free_irq [2021-11-23 03:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure poll_bnx2 [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_bnx2 [2021-11-23 03:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-23 03:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 03:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_set_rx_ring_size [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_set_rx_ring_size [2021-11-23 03:43:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure bnx2_dump_mcp_state [2021-11-23 03:43:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure bnx2_dump_mcp_state [2021-11-23 03:43:51,675 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:43:51,681 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:43:52,112 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 03:46:22,635 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 03:46:22,818 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:46:31,461 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:46:31,461 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 03:46:31,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:31 BoogieIcfgContainer [2021-11-23 03:46:31,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:46:31,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:46:31,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:46:31,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:46:31,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:43:38" (1/3) ... [2021-11-23 03:46:31,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632cc2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:31, skipping insertion in model container [2021-11-23 03:46:31,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:43:47" (2/3) ... [2021-11-23 03:46:31,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632cc2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:31, skipping insertion in model container [2021-11-23 03:46:31,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:31" (3/3) ... [2021-11-23 03:46:31,483 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-broadcom-bnx2.cil.i [2021-11-23 03:46:31,490 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:46:31,490 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:46:31,578 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:46:31,587 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:46:31,588 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:46:31,697 INFO L276 IsEmpty]: Start isEmpty. Operand has 4673 states, 2849 states have (on average 1.3046683046683047) internal successors, (3717), 2922 states have internal predecessors, (3717), 1575 states have call successors, (1575), 248 states have call predecessors, (1575), 247 states have return successors, (1566), 1556 states have call predecessors, (1566), 1566 states have call successors, (1566) [2021-11-23 03:46:31,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-23 03:46:31,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:46:31,728 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] [2021-11-23 03:46:31,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:46:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:46:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1086637093, now seen corresponding path program 1 times [2021-11-23 03:46:31,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:46:31,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949280176] [2021-11-23 03:46:31,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:46:31,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:46:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:46:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2862 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2862 trivial. 0 not checked. [2021-11-23 03:46:32,827 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:46:32,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949280176] [2021-11-23 03:46:32,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949280176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:46:32,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:46:32,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:46:32,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257694232] [2021-11-23 03:46:32,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:46:32,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:46:32,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:46:32,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:46:32,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:46:32,876 INFO L87 Difference]: Start difference. First operand has 4673 states, 2849 states have (on average 1.3046683046683047) internal successors, (3717), 2922 states have internal predecessors, (3717), 1575 states have call successors, (1575), 248 states have call predecessors, (1575), 247 states have return successors, (1566), 1556 states have call predecessors, (1566), 1566 states have call successors, (1566) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-23 03:46:36,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:38,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:46,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:48,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:56,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:46:58,652 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:00,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:04,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:06,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:08,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:09,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:09,504 INFO L93 Difference]: Finished difference Result 13649 states and 20175 transitions. [2021-11-23 03:47:09,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:47:09,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 290 [2021-11-23 03:47:09,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:09,632 INFO L225 Difference]: With dead ends: 13649 [2021-11-23 03:47:09,632 INFO L226 Difference]: Without dead ends: 9018 [2021-11-23 03:47:09,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:47:09,687 INFO L933 BasicCegarLoop]: 7748 mSDtfsCounter, 6413 mSDsluCounter, 6796 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 7 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6422 SdHoareTripleChecker+Valid, 13800 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:09,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6422 Valid, 13800 Invalid, 1582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1566 Invalid, 9 Unknown, 0 Unchecked, 35.9s Time] [2021-11-23 03:47:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2021-11-23 03:47:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 9013. [2021-11-23 03:47:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9013 states, 5510 states have (on average 1.3036297640653358) internal successors, (7183), 5655 states have internal predecessors, (7183), 3016 states have call successors, (3016), 487 states have call predecessors, (3016), 485 states have return successors, (3020), 2990 states have call predecessors, (3020), 3013 states have call successors, (3020) [2021-11-23 03:47:10,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9013 states to 9013 states and 13219 transitions. [2021-11-23 03:47:10,671 INFO L78 Accepts]: Start accepts. Automaton has 9013 states and 13219 transitions. Word has length 290 [2021-11-23 03:47:10,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:10,673 INFO L470 AbstractCegarLoop]: Abstraction has 9013 states and 13219 transitions. [2021-11-23 03:47:10,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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) [2021-11-23 03:47:10,674 INFO L276 IsEmpty]: Start isEmpty. Operand 9013 states and 13219 transitions. [2021-11-23 03:47:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-23 03:47:10,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:10,691 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, 1] [2021-11-23 03:47:10,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:47:10,692 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:47:10,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:10,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1512740523, now seen corresponding path program 1 times [2021-11-23 03:47:10,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:10,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274539664] [2021-11-23 03:47:10,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:10,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:10,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2865 trivial. 0 not checked. [2021-11-23 03:47:11,399 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:11,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274539664] [2021-11-23 03:47:11,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274539664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:11,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:11,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:47:11,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659403731] [2021-11-23 03:47:11,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:11,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:47:11,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:11,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:47:11,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:47:11,402 INFO L87 Difference]: Start difference. First operand 9013 states and 13219 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-23 03:47:14,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:16,972 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:25,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:33,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:36,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:38,904 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:41,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:44,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:46,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:47,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:47:47,501 INFO L93 Difference]: Finished difference Result 22292 states and 32679 transitions. [2021-11-23 03:47:47,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:47:47,510 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 321 [2021-11-23 03:47:47,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:47:47,667 INFO L225 Difference]: With dead ends: 22292 [2021-11-23 03:47:47,667 INFO L226 Difference]: Without dead ends: 13334 [2021-11-23 03:47:47,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:47:47,763 INFO L933 BasicCegarLoop]: 7750 mSDtfsCounter, 6346 mSDsluCounter, 6780 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 12 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 13788 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:47:47,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6353 Valid, 13788 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1588 Invalid, 8 Unknown, 0 Unchecked, 35.5s Time] [2021-11-23 03:47:47,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2021-11-23 03:47:48,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 13320. [2021-11-23 03:47:48,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13320 states, 8148 states have (on average 1.3025282277859598) internal successors, (10613), 8369 states have internal predecessors, (10613), 4444 states have call successors, (4444), 729 states have call predecessors, (4444), 726 states have return successors, (4453), 4400 states have call predecessors, (4453), 4441 states have call successors, (4453) [2021-11-23 03:47:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13320 states to 13320 states and 19510 transitions. [2021-11-23 03:47:49,212 INFO L78 Accepts]: Start accepts. Automaton has 13320 states and 19510 transitions. Word has length 321 [2021-11-23 03:47:49,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:47:49,213 INFO L470 AbstractCegarLoop]: Abstraction has 13320 states and 19510 transitions. [2021-11-23 03:47:49,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-23 03:47:49,215 INFO L276 IsEmpty]: Start isEmpty. Operand 13320 states and 19510 transitions. [2021-11-23 03:47:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-23 03:47:49,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:47:49,234 INFO L514 BasicCegarLoop]: trace histogram [31, 27, 27, 27, 27, 27, 27, 4, 4, 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] [2021-11-23 03:47:49,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:47:49,235 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:47:49,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:47:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash 700952409, now seen corresponding path program 1 times [2021-11-23 03:47:49,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:47:49,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877805130] [2021-11-23 03:47:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:47:49,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:47:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:47:50,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3063 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3063 trivial. 0 not checked. [2021-11-23 03:47:50,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:47:50,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877805130] [2021-11-23 03:47:50,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877805130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:47:50,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:47:50,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:47:50,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054283437] [2021-11-23 03:47:50,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:47:50,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:47:50,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:47:50,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:47:50,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:47:50,045 INFO L87 Difference]: Start difference. First operand 13320 states and 19510 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-23 03:47:54,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:47:56,747 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:06,430 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:09,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:14,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:18,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:20,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:23,251 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:25,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:27,205 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:31,495 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:33,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:35,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:37,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:37,004 INFO L93 Difference]: Finished difference Result 22089 states and 32350 transitions. [2021-11-23 03:48:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:37,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 332 [2021-11-23 03:48:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:37,202 INFO L225 Difference]: With dead ends: 22089 [2021-11-23 03:48:37,202 INFO L226 Difference]: Without dead ends: 22064 [2021-11-23 03:48:37,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:48:37,230 INFO L933 BasicCegarLoop]: 7803 mSDtfsCounter, 6446 mSDsluCounter, 15341 mSDsCounter, 0 mSdLazyCounter, 2372 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6453 SdHoareTripleChecker+Valid, 21585 SdHoareTripleChecker+Invalid, 2380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2372 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:37,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6453 Valid, 21585 Invalid, 2380 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2372 Invalid, 8 Unknown, 0 Unchecked, 46.2s Time] [2021-11-23 03:48:37,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22064 states. [2021-11-23 03:48:38,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22064 to 22059. [2021-11-23 03:48:38,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22059 states, 13500 states have (on average 1.303037037037037) internal successors, (17591), 13865 states have internal predecessors, (17591), 7348 states have call successors, (7348), 1214 states have call predecessors, (7348), 1209 states have return successors, (7367), 7276 states have call predecessors, (7367), 7345 states have call successors, (7367) [2021-11-23 03:48:38,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22059 states to 22059 states and 32306 transitions. [2021-11-23 03:48:38,878 INFO L78 Accepts]: Start accepts. Automaton has 22059 states and 32306 transitions. Word has length 332 [2021-11-23 03:48:38,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:38,880 INFO L470 AbstractCegarLoop]: Abstraction has 22059 states and 32306 transitions. [2021-11-23 03:48:38,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-23 03:48:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 22059 states and 32306 transitions. [2021-11-23 03:48:38,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-23 03:48:38,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:38,900 INFO L514 BasicCegarLoop]: trace histogram [30, 28, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:38,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:48:38,901 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:38,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2007605048, now seen corresponding path program 1 times [2021-11-23 03:48:38,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:38,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426944349] [2021-11-23 03:48:38,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:38,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:39,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3138 trivial. 0 not checked. [2021-11-23 03:48:39,457 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:39,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426944349] [2021-11-23 03:48:39,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426944349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:39,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:39,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:48:39,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555678964] [2021-11-23 03:48:39,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:39,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:48:39,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:39,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:48:39,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:48:39,459 INFO L87 Difference]: Start difference. First operand 22059 states and 32306 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-23 03:48:42,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:48:44,976 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:00,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:02,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:03,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:06,105 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:09,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:11,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:13,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:14,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:49:14,616 INFO L93 Difference]: Finished difference Result 60883 states and 89134 transitions. [2021-11-23 03:49:14,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:49:14,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 328 [2021-11-23 03:49:14,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:49:15,066 INFO L225 Difference]: With dead ends: 60883 [2021-11-23 03:49:15,066 INFO L226 Difference]: Without dead ends: 38879 [2021-11-23 03:49:15,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:49:15,207 INFO L933 BasicCegarLoop]: 7649 mSDtfsCounter, 6215 mSDsluCounter, 6756 mSDsCounter, 0 mSdLazyCounter, 1609 mSolverCounterSat, 18 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6222 SdHoareTripleChecker+Valid, 13668 SdHoareTripleChecker+Invalid, 1635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1609 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time [2021-11-23 03:49:15,208 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6222 Valid, 13668 Invalid, 1635 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 1609 Invalid, 8 Unknown, 0 Unchecked, 34.0s Time] [2021-11-23 03:49:15,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38879 states. [2021-11-23 03:49:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38879 to 38863. [2021-11-23 03:49:17,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38863 states, 23829 states have (on average 1.3014394225523522) internal successors, (31012), 24492 states have internal predecessors, (31012), 12883 states have call successors, (12883), 2160 states have call predecessors, (12883), 2149 states have return successors, (12921), 12743 states have call predecessors, (12921), 12880 states have call successors, (12921) [2021-11-23 03:49:17,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38863 states to 38863 states and 56816 transitions. [2021-11-23 03:49:17,793 INFO L78 Accepts]: Start accepts. Automaton has 38863 states and 56816 transitions. Word has length 328 [2021-11-23 03:49:17,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:49:17,794 INFO L470 AbstractCegarLoop]: Abstraction has 38863 states and 56816 transitions. [2021-11-23 03:49:17,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-23 03:49:17,795 INFO L276 IsEmpty]: Start isEmpty. Operand 38863 states and 56816 transitions. [2021-11-23 03:49:17,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-23 03:49:17,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:49:17,814 INFO L514 BasicCegarLoop]: trace histogram [29, 27, 27, 27, 27, 27, 27, 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] [2021-11-23 03:49:17,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:49:17,814 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:49:17,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:49:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash 710886776, now seen corresponding path program 1 times [2021-11-23 03:49:17,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:49:17,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467885875] [2021-11-23 03:49:17,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:49:17,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:49:18,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:18,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2921 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2918 trivial. 0 not checked. [2021-11-23 03:49:18,610 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:18,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467885875] [2021-11-23 03:49:18,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467885875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:49:18,611 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:49:18,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:49:18,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228109596] [2021-11-23 03:49:18,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:49:18,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:49:18,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:49:18,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:49:18,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:49:18,613 INFO L87 Difference]: Start difference. First operand 38863 states and 56816 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-23 03:49:21,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:25,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:28,874 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:33,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:39,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:42,230 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:45,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:48,702 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:51,026 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:53,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:56,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:49:59,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:00,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:00,279 INFO L93 Difference]: Finished difference Result 111134 states and 162293 transitions. [2021-11-23 03:50:00,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:00,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 325 [2021-11-23 03:50:00,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:01,188 INFO L225 Difference]: With dead ends: 111134 [2021-11-23 03:50:01,189 INFO L226 Difference]: Without dead ends: 72326 [2021-11-23 03:50:01,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:01,440 INFO L933 BasicCegarLoop]: 8520 mSDtfsCounter, 5564 mSDsluCounter, 6710 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 7 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5569 SdHoareTripleChecker+Valid, 14533 SdHoareTripleChecker+Invalid, 1728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:01,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5569 Valid, 14533 Invalid, 1728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1711 Invalid, 10 Unknown, 0 Unchecked, 39.6s Time] [2021-11-23 03:50:01,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72326 states. [2021-11-23 03:50:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72326 to 72298. [2021-11-23 03:50:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72298 states, 44191 states have (on average 1.2939965151275146) internal successors, (57183), 45494 states have internal predecessors, (57183), 23903 states have call successors, (23903), 4233 states have call predecessors, (23903), 4202 states have return successors, (24402), 23607 states have call predecessors, (24402), 23900 states have call successors, (24402) [2021-11-23 03:50:06,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72298 states to 72298 states and 105488 transitions. [2021-11-23 03:50:06,083 INFO L78 Accepts]: Start accepts. Automaton has 72298 states and 105488 transitions. Word has length 325 [2021-11-23 03:50:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:50:06,086 INFO L470 AbstractCegarLoop]: Abstraction has 72298 states and 105488 transitions. [2021-11-23 03:50:06,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2021-11-23 03:50:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 72298 states and 105488 transitions. [2021-11-23 03:50:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-11-23 03:50:06,149 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:50:06,149 INFO L514 BasicCegarLoop]: trace histogram [33, 28, 28, 28, 28, 28, 28, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:50:06,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:50:06,150 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:50:06,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:50:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash 278855264, now seen corresponding path program 1 times [2021-11-23 03:50:06,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:50:06,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133593682] [2021-11-23 03:50:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:50:06,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:50:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:50:06,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3357 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3354 trivial. 0 not checked. [2021-11-23 03:50:06,918 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:50:06,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133593682] [2021-11-23 03:50:06,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133593682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:50:06,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:50:06,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:50:06,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055629475] [2021-11-23 03:50:06,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:50:06,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:50:06,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:50:06,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:50:06,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:06,921 INFO L87 Difference]: Start difference. First operand 72298 states and 105488 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2021-11-23 03:50:10,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:12,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:14,848 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:18,704 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:21,321 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:25,091 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:29,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:32,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:35,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:41,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:45,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:47,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:49,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:53,213 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:55,959 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:50:57,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:50:57,801 INFO L93 Difference]: Finished difference Result 168383 states and 245744 transitions. [2021-11-23 03:50:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:50:57,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 375 [2021-11-23 03:50:57,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:50:58,761 INFO L225 Difference]: With dead ends: 168383 [2021-11-23 03:50:58,761 INFO L226 Difference]: Without dead ends: 103896 [2021-11-23 03:50:59,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:50:59,273 INFO L933 BasicCegarLoop]: 11510 mSDtfsCounter, 6207 mSDsluCounter, 6753 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6215 SdHoareTripleChecker+Valid, 17527 SdHoareTripleChecker+Invalid, 2265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:50:59,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6215 Valid, 17527 Invalid, 2265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2242 Invalid, 8 Unknown, 0 Unchecked, 47.5s Time] [2021-11-23 03:50:59,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103896 states. [2021-11-23 03:51:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103896 to 103874. [2021-11-23 03:51:03,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103874 states, 63515 states have (on average 1.2935999370227504) internal successors, (82163), 65402 states have internal predecessors, (82163), 34303 states have call successors, (34303), 6101 states have call predecessors, (34303), 6054 states have return successors, (35026), 33867 states have call predecessors, (35026), 34300 states have call successors, (35026) [2021-11-23 03:51:05,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103874 states to 103874 states and 151492 transitions. [2021-11-23 03:51:05,365 INFO L78 Accepts]: Start accepts. Automaton has 103874 states and 151492 transitions. Word has length 375 [2021-11-23 03:51:05,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:51:05,366 INFO L470 AbstractCegarLoop]: Abstraction has 103874 states and 151492 transitions. [2021-11-23 03:51:05,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2021-11-23 03:51:05,367 INFO L276 IsEmpty]: Start isEmpty. Operand 103874 states and 151492 transitions. [2021-11-23 03:51:05,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-23 03:51:05,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:51:05,439 INFO L514 BasicCegarLoop]: trace histogram [32, 27, 27, 27, 27, 27, 27, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:51:05,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:51:05,439 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:51:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:51:05,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1228893651, now seen corresponding path program 1 times [2021-11-23 03:51:05,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:51:05,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503961671] [2021-11-23 03:51:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:51:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:51:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:51:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3150 trivial. 0 not checked. [2021-11-23 03:51:05,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:51:05,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503961671] [2021-11-23 03:51:05,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503961671] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:51:05,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:51:05,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:51:05,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899615713] [2021-11-23 03:51:05,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:51:05,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:51:05,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:51:05,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:51:05,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:51:05,976 INFO L87 Difference]: Start difference. First operand 103874 states and 151492 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-23 03:51:08,871 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:10,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:17,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:21,083 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:28,014 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:33,834 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:36,867 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:42,605 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:44,624 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:49,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:51,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:54,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:57,293 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:51:59,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:52:02,340 INFO L93 Difference]: Finished difference Result 247530 states and 361077 transitions. [2021-11-23 03:52:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:52:02,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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 378 [2021-11-23 03:52:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:52:03,768 INFO L225 Difference]: With dead ends: 247530 [2021-11-23 03:52:03,768 INFO L226 Difference]: Without dead ends: 151467 [2021-11-23 03:52:04,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:52:04,431 INFO L933 BasicCegarLoop]: 11715 mSDtfsCounter, 6361 mSDsluCounter, 6779 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 9 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6366 SdHoareTripleChecker+Valid, 17751 SdHoareTripleChecker+Invalid, 2276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:52:04,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6366 Valid, 17751 Invalid, 2276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2258 Invalid, 9 Unknown, 0 Unchecked, 51.6s Time] [2021-11-23 03:52:04,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151467 states. [2021-11-23 03:52:10,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151467 to 151432. [2021-11-23 03:52:10,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151432 states, 92590 states have (on average 1.293347013716384) internal successors, (119751), 95364 states have internal predecessors, (119751), 50007 states have call successors, (50007), 8901 states have call predecessors, (50007), 8833 states have return successors, (51062), 49354 states have call predecessors, (51062), 50004 states have call successors, (51062) [2021-11-23 03:52:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151432 states to 151432 states and 220820 transitions. [2021-11-23 03:52:12,195 INFO L78 Accepts]: Start accepts. Automaton has 151432 states and 220820 transitions. Word has length 378 [2021-11-23 03:52:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:52:12,196 INFO L470 AbstractCegarLoop]: Abstraction has 151432 states and 220820 transitions. [2021-11-23 03:52:12,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 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) [2021-11-23 03:52:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 151432 states and 220820 transitions. [2021-11-23 03:52:12,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-23 03:52:12,285 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:52:12,286 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:52:12,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:52:12,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:52:12,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:52:12,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1790191465, now seen corresponding path program 1 times [2021-11-23 03:52:12,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:52:12,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674574943] [2021-11-23 03:52:12,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:52:12,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:52:12,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:52:12,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3310 trivial. 0 not checked. [2021-11-23 03:52:12,997 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:52:12,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674574943] [2021-11-23 03:52:12,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674574943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:52:12,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:52:12,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:52:12,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805064623] [2021-11-23 03:52:12,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:52:12,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:52:12,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:52:12,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:52:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:52:12,999 INFO L87 Difference]: Start difference. First operand 151432 states and 220820 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-23 03:52:15,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:17,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:23,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:28,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:32,622 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:34,661 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:43,900 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:47,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:54,585 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:56,913 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:52:59,600 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:02,857 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:05,191 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:07,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:53:07,486 INFO L93 Difference]: Finished difference Result 170662 states and 248355 transitions. [2021-11-23 03:53:07,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:53:07,487 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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 402 [2021-11-23 03:53:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:53:08,859 INFO L225 Difference]: With dead ends: 170662 [2021-11-23 03:53:08,859 INFO L226 Difference]: Without dead ends: 170660 [2021-11-23 03:53:08,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:53:08,941 INFO L933 BasicCegarLoop]: 7772 mSDtfsCounter, 6413 mSDsluCounter, 15310 mSDsCounter, 0 mSdLazyCounter, 2363 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6420 SdHoareTripleChecker+Valid, 21525 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2363 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:53:08,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6420 Valid, 21525 Invalid, 2375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2363 Invalid, 11 Unknown, 0 Unchecked, 50.3s Time] [2021-11-23 03:53:09,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170660 states. [2021-11-23 03:53:16,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170660 to 170612. [2021-11-23 03:53:16,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170612 states, 104210 states have (on average 1.2908262162940216) internal successors, (134517), 107328 states have internal predecessors, (134517), 56331 states have call successors, (56331), 10133 states have call predecessors, (56331), 10069 states have return successors, (57442), 55642 states have call predecessors, (57442), 56328 states have call successors, (57442) [2021-11-23 03:53:18,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170612 states to 170612 states and 248290 transitions. [2021-11-23 03:53:18,193 INFO L78 Accepts]: Start accepts. Automaton has 170612 states and 248290 transitions. Word has length 402 [2021-11-23 03:53:18,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:53:18,194 INFO L470 AbstractCegarLoop]: Abstraction has 170612 states and 248290 transitions. [2021-11-23 03:53:18,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2021-11-23 03:53:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 170612 states and 248290 transitions. [2021-11-23 03:53:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2021-11-23 03:53:18,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:53:18,336 INFO L514 BasicCegarLoop]: trace histogram [30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:53:18,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:53:18,337 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] === [2021-11-23 03:53:18,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:53:18,337 INFO L85 PathProgramCache]: Analyzing trace with hash 753638658, now seen corresponding path program 1 times [2021-11-23 03:53:18,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:53:18,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031783893] [2021-11-23 03:53:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:53:18,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:53:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:53:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 3011 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2021-11-23 03:53:19,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:53:19,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031783893] [2021-11-23 03:53:19,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031783893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:53:19,359 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:53:19,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:53:19,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387081310] [2021-11-23 03:53:19,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:53:19,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:53:19,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:53:19,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:53:19,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:53:19,361 INFO L87 Difference]: Start difference. First operand 170612 states and 248290 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-23 03:53:23,550 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 03:53:32,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []