./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a03ad4e15fecab938e9e70aed8b753ecf99ee66a89bf97a267f1c578afd42981 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:21:12,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:21:12,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:21:12,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:21:12,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:21:12,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:21:12,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:21:12,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:21:12,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:21:12,628 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:21:12,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:21:12,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:21:12,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:21:12,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:21:12,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:21:12,645 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:21:12,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:21:12,649 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:21:12,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:21:12,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:21:12,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:21:12,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:21:12,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:21:12,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:21:12,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:21:12,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:21:12,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:21:12,678 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:21:12,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:21:12,680 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:21:12,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:21:12,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:21:12,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:21:12,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:21:12,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:21:12,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:21:12,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:21:12,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:21:12,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:21:12,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:21:12,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:21:12,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:21:12,718 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:21:12,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:21:12,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:21:12,719 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:21:12,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:21:12,720 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:21:12,720 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:21:12,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:21:12,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:21:12,722 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:21:12,722 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:21:12,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:21:12,722 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:21:12,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:21:12,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:21:12,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:21:12,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:21:12,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:21:12,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:21:12,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:21:12,725 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:21:12,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:21:12,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:21:12,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:21:12,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:21:12,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:21:12,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:21:12,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:21:12,726 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:21:12,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:21:12,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:21:12,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:21:12,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:21:12,727 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a03ad4e15fecab938e9e70aed8b753ecf99ee66a89bf97a267f1c578afd42981 [2021-11-21 00:21:12,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:21:12,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:21:12,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:21:12,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:21:12,991 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:21:12,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:21:13,087 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/data/fe775ecab/483b34be46124d9e99d60ccf4119f3a4/FLAGe85555695 [2021-11-21 00:21:14,377 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:21:14,378 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:21:14,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/data/fe775ecab/483b34be46124d9e99d60ccf4119f3a4/FLAGe85555695 [2021-11-21 00:21:14,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/data/fe775ecab/483b34be46124d9e99d60ccf4119f3a4 [2021-11-21 00:21:14,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:21:14,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:21:14,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:21:14,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:21:14,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:21:14,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:21:14" (1/1) ... [2021-11-21 00:21:14,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376b6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:14, skipping insertion in model container [2021-11-21 00:21:14,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:21:14" (1/1) ... [2021-11-21 00:21:14,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:21:14,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:21:21,402 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607702,607715] [2021-11-21 00:21:21,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607849,607862] [2021-11-21 00:21:21,405 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607988,608001] [2021-11-21 00:21:21,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[608146,608159] [2021-11-21 00:21:21,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:21:21,610 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:21:22,238 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607702,607715] [2021-11-21 00:21:22,238 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607849,607862] [2021-11-21 00:21:22,239 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[607988,608001] [2021-11-21 00:21:22,239 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_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i[608146,608159] [2021-11-21 00:21:22,253 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:21:22,600 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:21:22,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22 WrapperNode [2021-11-21 00:21:22,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:21:22,601 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:21:22,602 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:21:22,602 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:21:22,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:22,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,249 INFO L137 Inliner]: procedures = 673, calls = 7407, calls flagged for inlining = 360, calls inlined = 339, statements flattened = 15802 [2021-11-21 00:21:23,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:21:23,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:21:23,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:21:23,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:21:23,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:23,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:24,021 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:21:24,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:21:24,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:21:24,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:21:24,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (1/1) ... [2021-11-21 00:21:24,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:21:24,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:21:24,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:21:24,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:21:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:21:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:21:24,216 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 00:21:24,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 00:21:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-21 00:21:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure ql_timer [2021-11-21 00:21:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_timer [2021-11-21 00:21:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:21:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:21:24,217 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-21 00:21:24,217 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-21 00:21:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_irq [2021-11-21 00:21:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_irq [2021-11-21 00:21:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 00:21:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 00:21:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-21 00:21:24,218 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-21 00:21:24,218 INFO L130 BoogieDeclarations]: Found specification of procedure ql_enable_completion_interrupt [2021-11-21 00:21:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_enable_completion_interrupt [2021-11-21 00:21:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:21:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:21:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_both_serdes [2021-11-21 00:21:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_both_serdes [2021-11-21 00:21:24,219 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg [2021-11-21 00:21:24,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg [2021-11-21 00:21:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_reset [2021-11-21 00:21:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_reset [2021-11-21 00:21:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2021-11-21 00:21:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2021-11-21 00:21:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 00:21:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 00:21:24,220 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:21:24,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_cpu [2021-11-21 00:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_send [2021-11-21 00:21:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_send [2021-11-21 00:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 00:21:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 00:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:21:24,221 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:21:24,221 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-21 00:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-21 00:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-21 00:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-21 00:21:24,222 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:21:24,222 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_regs_len [2021-11-21 00:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_regs_len [2021-11-21 00:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_io_resume [2021-11-21 00:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_io_resume [2021-11-21 00:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2021-11-21 00:21:24,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2021-11-21 00:21:24,223 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-21 00:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-21 00:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_shutdown [2021-11-21 00:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_shutdown [2021-11-21 00:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_22 [2021-11-21 00:21:24,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_22 [2021-11-21 00:21:24,224 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_all [2021-11-21 00:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_all [2021-11-21 00:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_mac_hdr_len [2021-11-21 00:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_mac_hdr_len [2021-11-21 00:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mailbox_command [2021-11-21 00:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mailbox_command [2021-11-21 00:21:24,225 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-21 00:21:24,225 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-21 00:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:21:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:21:24,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:21:24,226 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_irq_mask [2021-11-21 00:21:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_irq_mask [2021-11-21 00:21:24,228 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:21:24,228 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:21:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure ql_dump_risc_ram_area [2021-11-21 00:21:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_dump_risc_ram_area [2021-11-21 00:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:21:24,229 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:21:24,229 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:21:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_other_func_reg [2021-11-21 00:21:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_other_func_reg [2021-11-21 00:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:21:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __qlge_vlan_rx_add_vid [2021-11-21 00:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2021-11-21 00:21:24,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2021-11-21 00:21:24,230 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:21:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:21:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:21:24,231 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:21:24,231 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_xgmac_regs [2021-11-21 00:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_xgmac_regs [2021-11-21 00:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_asic_error [2021-11-21 00:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_asic_error [2021-11-21 00:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_buffer_queues [2021-11-21 00:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_buffer_queues [2021-11-21 00:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_cam_entries [2021-11-21 00:21:24,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_cam_entries [2021-11-21 00:21:24,232 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_mem_resources [2021-11-21 00:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_mem_resources [2021-11-21 00:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-21 00:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-21 00:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_xgmac_reg [2021-11-21 00:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_xgmac_reg [2021-11-21 00:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:21:24,233 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:21:24,233 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_up [2021-11-21 00:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_up [2021-11-21 00:21:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure ql_eeh_close [2021-11-21 00:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_eeh_close [2021-11-21 00:21:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure netif_receive_skb [2021-11-21 00:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_receive_skb [2021-11-21 00:21:24,234 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:21:24,234 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr_reg [2021-11-21 00:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr_reg [2021-11-21 00:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 00:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 00:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure skb_record_rx_queue [2021-11-21 00:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_record_rx_queue [2021-11-21 00:21:24,235 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2021-11-21 00:21:24,235 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2021-11-21 00:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_serdes_reg [2021-11-21 00:21:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_serdes_reg [2021-11-21 00:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 00:21:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 00:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:21:24,236 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:21:24,236 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:21:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure ql_build_coredump_seg_header [2021-11-21 00:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_build_coredump_seg_header [2021-11-21 00:21:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_close [2021-11-21 00:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_close [2021-11-21 00:21:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mb_sts [2021-11-21 00:21:24,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mb_sts [2021-11-21 00:21:24,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_open [2021-11-21 00:21:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_open [2021-11-21 00:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:21:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:21:24,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:21:24,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:21:24,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:21:24,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_probe [2021-11-21 00:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_probe [2021-11-21 00:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2021-11-21 00:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2021-11-21 00:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:21:24,240 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_buffers [2021-11-21 00:21:24,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_buffers [2021-11-21 00:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-21 00:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-21 00:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-21 00:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-21 00:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write32 [2021-11-21 00:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write32 [2021-11-21 00:21:24,241 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cam_route_initialize [2021-11-21 00:21:24,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cam_route_initialize [2021-11-21 00:21:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 00:21:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 00:21:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:21:24,242 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:21:24,242 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:21:24,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_other_func_reg_rdy [2021-11-21 00:21:24,258 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_trylock [2021-11-21 00:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_trylock [2021-11-21 00:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_port_cfg [2021-11-21 00:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_port_cfg [2021-11-21 00:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_mpi_reg [2021-11-21 00:21:24,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_mpi_reg [2021-11-21 00:21:24,259 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2021-11-21 00:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2021-11-21 00:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-21 00:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-21 00:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_spinlock [2021-11-21 00:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_spinlock [2021-11-21 00:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:21:24,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:21:24,260 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:21:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure ql_sem_unlock [2021-11-21 00:21:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_sem_unlock [2021-11-21 00:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8012_flash_params [2021-11-21 00:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8012_flash_params [2021-11-21 00:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-21 00:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-21 00:21:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_serdes_reg [2021-11-21 00:21:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_serdes_reg [2021-11-21 00:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 00:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_completion_interrupt [2021-11-21 00:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_completion_interrupt [2021-11-21 00:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_fill_page_desc [2021-11-21 00:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_fill_page_desc [2021-11-21 00:21:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 00:21:24,263 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 00:21:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clear_routing_entries [2021-11-21 00:21:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clear_routing_entries [2021-11-21 00:21:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 00:21:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 00:21:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_off [2021-11-21 00:21:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_off [2021-11-21 00:21:24,264 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:21:24,264 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:21:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 00:21:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 00:21:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:21:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:21:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 00:21:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 00:21:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_tx_timeout [2021-11-21 00:21:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_tx_timeout [2021-11-21 00:21:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-11-21 00:21:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-11-21 00:21:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8000_port_initialize [2021-11-21 00:21:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8000_port_initialize [2021-11-21 00:21:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-21 00:21:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-21 00:21:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mpi_regs [2021-11-21 00:21:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mpi_regs [2021-11-21 00:21:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:21:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:21:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:21:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:21:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:21:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:21:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure ql_8012_port_initialize [2021-11-21 00:21:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_8012_port_initialize [2021-11-21 00:21:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:21:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:21:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_flash_word [2021-11-21 00:21:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_flash_word [2021-11-21 00:21:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_subqueue [2021-11-21 00:21:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_subqueue [2021-11-21 00:21:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:21:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:21:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure ql_release_adapter_resources [2021-11-21 00:21:24,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_release_adapter_resources [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:21:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure csum_tcpudp_magic [2021-11-21 00:21:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure csum_tcpudp_magic [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 00:21:24,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 00:21:24,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:21:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:21:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure ql_free_rx_resources [2021-11-21 00:21:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_free_rx_resources [2021-11-21 00:21:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-21 00:21:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-21 00:21:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 00:21:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 00:21:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:21:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:21:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_disable_interrupts [2021-11-21 00:21:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_disable_interrupts [2021-11-21 00:21:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 00:21:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure ql_soft_reset_mpi_risc [2021-11-21 00:21:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_soft_reset_mpi_risc [2021-11-21 00:21:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 00:21:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 00:21:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_remove [2021-11-21 00:21:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_remove [2021-11-21 00:21:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cq_idx [2021-11-21 00:21:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cq_idx [2021-11-21 00:21:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:21:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:21:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ql_link_on [2021-11-21 00:21:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_link_on [2021-11-21 00:21:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure napi_gro_receive [2021-11-21 00:21:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_gro_receive [2021-11-21 00:21:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_set_multicast_list [2021-11-21 00:21:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_set_multicast_list [2021-11-21 00:21:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-21 00:21:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-21 00:21:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-21 00:21:24,273 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-21 00:21:24,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:21:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:21:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 00:21:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 00:21:24,274 INFO L130 BoogieDeclarations]: Found specification of procedure ql_tx_ring_clean [2021-11-21 00:21:24,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_tx_ring_clean [2021-11-21 00:21:24,290 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 00:21:24,290 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 00:21:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:21:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:21:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure skb_fill_page_desc [2021-11-21 00:21:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_fill_page_desc [2021-11-21 00:21:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_mpi_reg [2021-11-21 00:21:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_mpi_reg [2021-11-21 00:21:24,291 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 00:21:24,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 00:21:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ql_clean_inbound_rx_ring [2021-11-21 00:21:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_clean_inbound_rx_ring [2021-11-21 00:21:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure ql_update_cq [2021-11-21 00:21:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_update_cq [2021-11-21 00:21:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 00:21:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 00:21:24,292 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_subqueue [2021-11-21 00:21:24,292 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_subqueue [2021-11-21 00:21:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:21:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:21:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-11-21 00:21:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-11-21 00:21:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:21:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:21:24,293 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:21:24,293 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_sbuf [2021-11-21 00:21:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_sbuf [2021-11-21 00:21:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:21:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:21:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ql_realign_skb [2021-11-21 00:21:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_realign_skb [2021-11-21 00:21:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:21:24,294 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:21:24,294 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_routing_entries [2021-11-21 00:21:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_routing_entries [2021-11-21 00:21:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:21:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 00:21:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 00:21:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure ql_process_mac_split_rx_intr [2021-11-21 00:21:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_process_mac_split_rx_intr [2021-11-21 00:21:24,295 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_suspend [2021-11-21 00:21:24,295 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_suspend [2021-11-21 00:21:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 00:21:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 00:21:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:21:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:21:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:21:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure __vlan_hwaccel_put_tag [2021-11-21 00:21:24,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __vlan_hwaccel_put_tag [2021-11-21 00:21:24,296 INFO L130 BoogieDeclarations]: Found specification of procedure ql_validate_flash [2021-11-21 00:21:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_validate_flash [2021-11-21 00:21:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:21:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:21:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure ql_cancel_all_work_sync [2021-11-21 00:21:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_cancel_all_work_sync [2021-11-21 00:21:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-21 00:21:24,297 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-21 00:21:24,297 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:21:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:21:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 00:21:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 00:21:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:21:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:21:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 00:21:24,298 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 00:21:24,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 00:21:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 00:21:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_8000_flash_params [2021-11-21 00:21:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_8000_flash_params [2021-11-21 00:21:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure ql_check_lb_frame [2021-11-21 00:21:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_check_lb_frame [2021-11-21 00:21:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2021-11-21 00:21:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2021-11-21 00:21:24,299 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-11-21 00:21:24,299 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-11-21 00:21:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure ql_categorize_rx_err [2021-11-21 00:21:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_categorize_rx_err [2021-11-21 00:21:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-21 00:21:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-21 00:21:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:21:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:21:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-21 00:21:24,300 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-21 00:21:24,300 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_initialize [2021-11-21 00:21:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_initialize [2021-11-21 00:21:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 00:21:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 00:21:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_sh_reg [2021-11-21 00:21:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_sh_reg [2021-11-21 00:21:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 00:21:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 00:21:24,301 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:21:24,301 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:21:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:21:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:21:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_db_reg [2021-11-21 00:21:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_db_reg [2021-11-21 00:21:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:21:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:21:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_get_port_cfg [2021-11-21 00:21:24,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_get_port_cfg [2021-11-21 00:21:24,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:21:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-21 00:21:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-21 00:21:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:21:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:21:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2021-11-21 00:21:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2021-11-21 00:21:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure ql_adapter_down [2021-11-21 00:21:24,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_adapter_down [2021-11-21 00:21:24,303 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:21:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:21:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:21:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:21:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_queue_fw_error [2021-11-21 00:21:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_queue_fw_error [2021-11-21 00:21:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_unmap_send [2021-11-21 00:21:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_unmap_send [2021-11-21 00:21:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 00:21:24,304 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 00:21:24,304 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mpi_handler [2021-11-21 00:21:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mpi_handler [2021-11-21 00:21:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_xgmac_reg64 [2021-11-21 00:21:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_xgmac_reg64 [2021-11-21 00:21:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 00:21:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 00:21:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:21:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_mgmnt_traffic_ctl [2021-11-21 00:21:24,305 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read_other_func_reg [2021-11-21 00:21:24,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read_other_func_reg [2021-11-21 00:21:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_reg_rdy [2021-11-21 00:21:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_reg_rdy [2021-11-21 00:21:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_routing_reg [2021-11-21 00:21:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_routing_reg [2021-11-21 00:21:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 00:21:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 00:21:24,306 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-11-21 00:21:24,306 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-11-21 00:21:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_mb_set_led_cfg [2021-11-21 00:21:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_mb_set_led_cfg [2021-11-21 00:21:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_write_cfg [2021-11-21 00:21:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_write_cfg [2021-11-21 00:21:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:21:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:21:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_mac_addr_reg [2021-11-21 00:21:24,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_mac_addr_reg [2021-11-21 00:21:24,307 INFO L130 BoogieDeclarations]: Found specification of procedure ql_lbq_block_size [2021-11-21 00:21:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_lbq_block_size [2021-11-21 00:21:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:21:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:21:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure ql_own_firmware [2021-11-21 00:21:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_own_firmware [2021-11-21 00:21:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 00:21:24,308 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 00:21:24,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_get_num_default_rss_queues [2021-11-21 00:21:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_get_num_default_rss_queues [2021-11-21 00:21:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_curr_lchunk [2021-11-21 00:21:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_curr_lchunk [2021-11-21 00:21:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_ets_regs [2021-11-21 00:21:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_ets_regs [2021-11-21 00:21:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure ql_wait_cfg [2021-11-21 00:21:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_wait_cfg [2021-11-21 00:21:24,309 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 00:21:24,309 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 00:21:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure ql_read32 [2021-11-21 00:21:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_read32 [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure ql_set_mac_addr [2021-11-21 00:21:24,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_set_mac_addr [2021-11-21 00:21:24,310 INFO L130 BoogieDeclarations]: Found specification of procedure ql_get_intr_states [2021-11-21 00:21:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_get_intr_states [2021-11-21 00:21:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:21:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:21:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure netpoll_trap [2021-11-21 00:21:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure netpoll_trap [2021-11-21 00:21:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_sync_single_for_device [2021-11-21 00:21:24,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_sync_single_for_device [2021-11-21 00:21:24,311 INFO L130 BoogieDeclarations]: Found specification of procedure qlge_resume [2021-11-21 00:21:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure qlge_resume [2021-11-21 00:21:24,312 INFO L130 BoogieDeclarations]: Found specification of procedure ql_core_dump [2021-11-21 00:21:24,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ql_core_dump [2021-11-21 00:21:25,965 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:21:25,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:21:26,128 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:21:53,866 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:21:59,591 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:21:59,592 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-21 00:21:59,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:21:59 BoogieIcfgContainer [2021-11-21 00:21:59,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:21:59,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:21:59,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:21:59,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:21:59,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:21:14" (1/3) ... [2021-11-21 00:21:59,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563e36d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:21:59, skipping insertion in model container [2021-11-21 00:21:59,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:21:22" (2/3) ... [2021-11-21 00:21:59,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@563e36d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:21:59, skipping insertion in model container [2021-11-21 00:21:59,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:21:59" (3/3) ... [2021-11-21 00:21:59,608 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-net-ethernet-qlogic-qlge-qlge.cil.i [2021-11-21 00:21:59,614 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:21:59,614 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:21:59,679 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:21:59,685 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:21:59,686 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:21:59,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 3594 states, 2147 states have (on average 1.3032137866790872) internal successors, (2798), 2225 states have internal predecessors, (2798), 1207 states have call successors, (1207), 238 states have call predecessors, (1207), 237 states have return successors, (1201), 1182 states have call predecessors, (1201), 1201 states have call successors, (1201) [2021-11-21 00:21:59,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:21:59,789 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:21:59,789 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-21 00:21:59,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:21:59,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:21:59,795 INFO L85 PathProgramCache]: Analyzing trace with hash 434942836, now seen corresponding path program 1 times [2021-11-21 00:21:59,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:21:59,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064973559] [2021-11-21 00:21:59,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:21:59,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 00:22:00,783 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:00,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064973559] [2021-11-21 00:22:00,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064973559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:22:00,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:22:00,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:22:00,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019406329] [2021-11-21 00:22:00,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:22:00,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:22:00,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:22:00,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:22:00,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:22:00,828 INFO L87 Difference]: Start difference. First operand has 3594 states, 2147 states have (on average 1.3032137866790872) internal successors, (2798), 2225 states have internal predecessors, (2798), 1207 states have call successors, (1207), 238 states have call predecessors, (1207), 237 states have return successors, (1201), 1182 states have call predecessors, (1201), 1201 states have call successors, (1201) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 00:22:04,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:06,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:22:09,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:13,424 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:15,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:21,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:22:21,678 INFO L93 Difference]: Finished difference Result 8860 states and 12764 transitions. [2021-11-21 00:22:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:22:21,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 34 [2021-11-21 00:22:21,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:22:21,751 INFO L225 Difference]: With dead ends: 8860 [2021-11-21 00:22:21,751 INFO L226 Difference]: Without dead ends: 5228 [2021-11-21 00:22:21,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:22:21,783 INFO L933 BasicCegarLoop]: 5189 mSDtfsCounter, 5158 mSDsluCounter, 8339 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 12414 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:22:21,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 12414 Invalid, 1874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1871 Invalid, 3 Unknown, 0 Unchecked, 20.2s Time] [2021-11-21 00:22:21,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5228 states. [2021-11-21 00:22:22,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5228 to 5224. [2021-11-21 00:22:22,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5224 states, 3144 states have (on average 1.3008905852417303) internal successors, (4090), 3252 states have internal predecessors, (4090), 1697 states have call successors, (1697), 382 states have call predecessors, (1697), 382 states have return successors, (1701), 1669 states have call predecessors, (1701), 1697 states have call successors, (1701) [2021-11-21 00:22:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5224 states to 5224 states and 7488 transitions. [2021-11-21 00:22:22,292 INFO L78 Accepts]: Start accepts. Automaton has 5224 states and 7488 transitions. Word has length 34 [2021-11-21 00:22:22,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:22:22,292 INFO L470 AbstractCegarLoop]: Abstraction has 5224 states and 7488 transitions. [2021-11-21 00:22:22,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-21 00:22:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 5224 states and 7488 transitions. [2021-11-21 00:22:22,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-21 00:22:22,302 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:22:22,302 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-21 00:22:22,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:22:22,303 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:22:22,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:22:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1639737901, now seen corresponding path program 1 times [2021-11-21 00:22:22,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:22:22,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778480984] [2021-11-21 00:22:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:22,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:22,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-11-21 00:22:23,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:23,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778480984] [2021-11-21 00:22:23,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778480984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:22:23,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:22:23,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:22:23,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023295310] [2021-11-21 00:22:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:22:23,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:22:23,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:22:23,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:22:23,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:22:23,255 INFO L87 Difference]: Start difference. First operand 5224 states and 7488 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:22:26,275 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:22:28,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:32,374 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:36,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:38,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:47,401 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:22:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:22:53,058 INFO L93 Difference]: Finished difference Result 9923 states and 14481 transitions. [2021-11-21 00:22:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:22:53,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 97 [2021-11-21 00:22:53,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:22:53,156 INFO L225 Difference]: With dead ends: 9923 [2021-11-21 00:22:53,156 INFO L226 Difference]: Without dead ends: 9921 [2021-11-21 00:22:53,169 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:22:53,172 INFO L933 BasicCegarLoop]: 6772 mSDtfsCounter, 6305 mSDsluCounter, 12926 mSDsCounter, 0 mSdLazyCounter, 2781 mSolverCounterSat, 255 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6545 SdHoareTripleChecker+Valid, 18077 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2781 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:22:53,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6545 Valid, 18077 Invalid, 3040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [255 Valid, 2781 Invalid, 4 Unknown, 0 Unchecked, 29.2s Time] [2021-11-21 00:22:53,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9921 states. [2021-11-21 00:22:53,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9921 to 9317. [2021-11-21 00:22:53,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9317 states, 5596 states have (on average 1.3037884203002144) internal successors, (7296), 5793 states have internal predecessors, (7296), 3102 states have call successors, (3102), 618 states have call predecessors, (3102), 618 states have return successors, (3114), 3047 states have call predecessors, (3114), 3102 states have call successors, (3114) [2021-11-21 00:22:53,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 13512 transitions. [2021-11-21 00:22:53,737 INFO L78 Accepts]: Start accepts. Automaton has 9317 states and 13512 transitions. Word has length 97 [2021-11-21 00:22:53,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:22:53,738 INFO L470 AbstractCegarLoop]: Abstraction has 9317 states and 13512 transitions. [2021-11-21 00:22:53,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:22:53,738 INFO L276 IsEmpty]: Start isEmpty. Operand 9317 states and 13512 transitions. [2021-11-21 00:22:53,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2021-11-21 00:22:53,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:22:53,816 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 8, 8, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:22:53,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:22:53,817 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:22:53,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:22:53,818 INFO L85 PathProgramCache]: Analyzing trace with hash 2099715975, now seen corresponding path program 1 times [2021-11-21 00:22:53,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:22:53,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020510110] [2021-11-21 00:22:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:53,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:22:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:54,914 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2021-11-21 00:22:54,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:22:54,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020510110] [2021-11-21 00:22:54,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020510110] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:22:54,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928241413] [2021-11-21 00:22:54,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:22:54,916 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:22:54,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:22:54,919 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:22:54,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:22:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:22:57,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 10779 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:22:57,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:22:59,309 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 351 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2021-11-21 00:22:59,309 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:22:59,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928241413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:22:59,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:22:59,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-21 00:22:59,311 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800880348] [2021-11-21 00:22:59,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:22:59,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:22:59,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:22:59,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:22:59,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:22:59,314 INFO L87 Difference]: Start difference. First operand 9317 states and 13512 transitions. Second operand has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-21 00:23:03,025 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:23:05,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:09,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:11,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:14,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:16,111 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:18,311 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:21,465 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:26,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:23:26,324 INFO L93 Difference]: Finished difference Result 18656 states and 27477 transitions. [2021-11-21 00:23:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:23:26,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) Word has length 557 [2021-11-21 00:23:26,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:23:26,422 INFO L225 Difference]: With dead ends: 18656 [2021-11-21 00:23:26,422 INFO L226 Difference]: Without dead ends: 9353 [2021-11-21 00:23:26,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:23:26,506 INFO L933 BasicCegarLoop]: 4436 mSDtfsCounter, 5 mSDsluCounter, 15391 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 17734 SdHoareTripleChecker+Invalid, 2810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:23:26,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 17734 Invalid, 2810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2806 Invalid, 4 Unknown, 0 Unchecked, 26.6s Time] [2021-11-21 00:23:26,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9353 states. [2021-11-21 00:23:26,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9353 to 9329. [2021-11-21 00:23:26,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9329 states, 5605 states have (on average 1.303300624442462) internal successors, (7305), 5802 states have internal predecessors, (7305), 3102 states have call successors, (3102), 618 states have call predecessors, (3102), 621 states have return successors, (3120), 3050 states have call predecessors, (3120), 3102 states have call successors, (3120) [2021-11-21 00:23:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9329 states to 9329 states and 13527 transitions. [2021-11-21 00:23:27,041 INFO L78 Accepts]: Start accepts. Automaton has 9329 states and 13527 transitions. Word has length 557 [2021-11-21 00:23:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:23:27,044 INFO L470 AbstractCegarLoop]: Abstraction has 9329 states and 13527 transitions. [2021-11-21 00:23:27,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 4 states have internal predecessors, (235), 2 states have call successors, (79), 2 states have call predecessors, (79), 3 states have return successors, (79), 3 states have call predecessors, (79), 2 states have call successors, (79) [2021-11-21 00:23:27,047 INFO L276 IsEmpty]: Start isEmpty. Operand 9329 states and 13527 transitions. [2021-11-21 00:23:27,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2021-11-21 00:23:27,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:23:27,142 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 8, 8, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:23:27,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:23:27,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-21 00:23:27,367 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:23:27,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:23:27,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1171468939, now seen corresponding path program 1 times [2021-11-21 00:23:27,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:23:27,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485342480] [2021-11-21 00:23:27,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:27,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:23:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 877 trivial. 0 not checked. [2021-11-21 00:23:28,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:23:28,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485342480] [2021-11-21 00:23:28,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485342480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:23:28,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063443333] [2021-11-21 00:23:28,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:28,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:23:28,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:23:28,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:23:28,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:23:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:31,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 10907 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:23:31,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:23:32,436 INFO L134 CoverageAnalysis]: Checked inductivity of 882 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 869 trivial. 0 not checked. [2021-11-21 00:23:32,437 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:23:32,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063443333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:23:32,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:23:32,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-11-21 00:23:32,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334800338] [2021-11-21 00:23:32,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:23:32,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:23:32,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:23:32,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:23:32,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:23:32,440 INFO L87 Difference]: Start difference. First operand 9329 states and 13527 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-21 00:23:35,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:23:37,422 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:44,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:46,605 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:48,665 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:23:54,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:23:54,668 INFO L93 Difference]: Finished difference Result 18677 states and 27309 transitions. [2021-11-21 00:23:54,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:23:54,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 565 [2021-11-21 00:23:54,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:23:54,752 INFO L225 Difference]: With dead ends: 18677 [2021-11-21 00:23:54,752 INFO L226 Difference]: Without dead ends: 9362 [2021-11-21 00:23:54,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:23:54,810 INFO L933 BasicCegarLoop]: 4412 mSDtfsCounter, 19 mSDsluCounter, 10189 mSDsCounter, 0 mSdLazyCounter, 2113 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 13209 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 2113 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:23:54,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 13209 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 2113 Invalid, 3 Unknown, 0 Unchecked, 21.8s Time] [2021-11-21 00:23:54,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9362 states. [2021-11-21 00:23:55,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9362 to 9362. [2021-11-21 00:23:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9362 states, 5626 states have (on average 1.3027017419125488) internal successors, (7329), 5823 states have internal predecessors, (7329), 3111 states have call successors, (3111), 621 states have call predecessors, (3111), 624 states have return successors, (3132), 3059 states have call predecessors, (3132), 3111 states have call successors, (3132) [2021-11-21 00:23:55,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9362 states to 9362 states and 13572 transitions. [2021-11-21 00:23:55,382 INFO L78 Accepts]: Start accepts. Automaton has 9362 states and 13572 transitions. Word has length 565 [2021-11-21 00:23:55,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:23:55,386 INFO L470 AbstractCegarLoop]: Abstraction has 9362 states and 13572 transitions. [2021-11-21 00:23:55,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 3 states have call successors, (76), 2 states have call predecessors, (76), 3 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2021-11-21 00:23:55,387 INFO L276 IsEmpty]: Start isEmpty. Operand 9362 states and 13572 transitions. [2021-11-21 00:23:55,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2021-11-21 00:23:55,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:23:55,461 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 13, 9, 9, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:23:55,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:23:55,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:23:55,675 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:23:55,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:23:55,676 INFO L85 PathProgramCache]: Analyzing trace with hash -639991044, now seen corresponding path program 1 times [2021-11-21 00:23:55,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:23:55,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948662900] [2021-11-21 00:23:55,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:55,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:23:55,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-11-21 00:23:56,355 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:23:56,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948662900] [2021-11-21 00:23:56,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948662900] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:23:56,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618391281] [2021-11-21 00:23:56,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:23:56,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:23:56,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:23:56,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:23:56,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33e2385c-c9cb-4c6e-a157-61e52b5a5d62/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:23:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:23:59,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 10933 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:23:59,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:24:01,654 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 330 proven. 1 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-11-21 00:24:01,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:24:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 889 trivial. 0 not checked. [2021-11-21 00:24:03,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618391281] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:24:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1947445374] [2021-11-21 00:24:03,662 INFO L159 IcfgInterpreter]: Started Sifa with 312 locations of interest [2021-11-21 00:24:03,662 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:24:03,669 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:24:03,674 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:24:03,675 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs