./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/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 f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:28:16,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:28:16,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:28:16,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:28:16,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:28:16,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:28:16,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:28:16,298 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:28:16,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:28:16,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:28:16,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:28:16,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:28:16,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:28:16,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:28:16,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:28:16,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:28:16,325 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:28:16,326 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:28:16,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:28:16,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:28:16,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:28:16,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:28:16,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:28:16,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:28:16,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:28:16,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:28:16,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:28:16,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:28:16,360 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:28:16,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:28:16,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:28:16,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:28:16,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:28:16,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:28:16,368 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:28:16,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:28:16,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:28:16,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:28:16,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:28:16,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:28:16,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:28:16,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:28:16,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:28:16,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:28:16,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:28:16,424 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:28:16,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:28:16,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:28:16,432 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:28:16,433 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:28:16,433 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:28:16,433 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:28:16,434 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:28:16,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:28:16,435 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:28:16,435 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:28:16,435 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:28:16,436 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:28:16,436 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:28:16,436 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:28:16,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:28:16,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:28:16,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:28:16,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:28:16,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:28:16,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:28:16,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:28:16,438 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:28:16,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:28:16,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:28:16,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:28:16,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:16,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:28:16,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:28:16,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:28:16,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:28:16,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:28:16,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:28:16,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:28:16,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:28:16,443 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0d35ad3183ac446cae7457c51fa9452f8942f4b349e6e40633392db1dd8aa97 [2021-11-21 00:28:16,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:28:16,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:28:16,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:28:16,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:28:16,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:28:16,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-21 00:28:16,918 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/data/591bc2545/304242ec3ccd472a88599c1c213f8a50/FLAG98d51ff6f [2021-11-21 00:28:18,139 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:28:18,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-21 00:28:18,204 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/data/591bc2545/304242ec3ccd472a88599c1c213f8a50/FLAG98d51ff6f [2021-11-21 00:28:18,219 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/data/591bc2545/304242ec3ccd472a88599c1c213f8a50 [2021-11-21 00:28:18,222 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:28:18,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:28:18,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:18,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:28:18,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:28:18,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:18" (1/1) ... [2021-11-21 00:28:18,233 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a9cba20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:18, skipping insertion in model container [2021-11-21 00:28:18,233 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:18" (1/1) ... [2021-11-21 00:28:18,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:28:18,412 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:28:22,984 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-21 00:28:22,987 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-21 00:28:22,988 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-21 00:28:22,989 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-21 00:28:22,990 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-21 00:28:22,991 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-21 00:28:22,992 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-21 00:28:22,992 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-21 00:28:22,993 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-21 00:28:22,993 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-21 00:28:22,994 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-21 00:28:22,995 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-21 00:28:22,996 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-21 00:28:23,003 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-21 00:28:23,004 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-21 00:28:23,004 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-21 00:28:23,005 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-21 00:28:23,008 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-21 00:28:23,010 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-21 00:28:23,011 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-21 00:28:23,013 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-21 00:28:23,014 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-21 00:28:23,014 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-21 00:28:23,015 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-21 00:28:23,016 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-21 00:28:23,016 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-21 00:28:23,017 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-21 00:28:23,017 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-21 00:28:23,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-21 00:28:23,018 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-21 00:28:23,019 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-21 00:28:23,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-21 00:28:23,020 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-21 00:28:23,021 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-21 00:28:23,021 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-21 00:28:23,022 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-21 00:28:23,023 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-21 00:28:23,023 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-21 00:28:23,024 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-21 00:28:23,024 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-21 00:28:23,025 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-21 00:28:23,026 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-21 00:28:23,026 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-21 00:28:23,027 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-21 00:28:23,027 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-21 00:28:23,028 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-21 00:28:23,029 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-21 00:28:23,029 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-21 00:28:23,030 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-21 00:28:23,030 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-21 00:28:23,031 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-21 00:28:23,032 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-21 00:28:23,032 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-21 00:28:23,033 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-21 00:28:23,034 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-21 00:28:23,035 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-21 00:28:23,036 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-21 00:28:23,036 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-21 00:28:23,037 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-21 00:28:23,037 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-21 00:28:23,038 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-21 00:28:23,038 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-21 00:28:23,039 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-21 00:28:23,040 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-21 00:28:23,040 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-21 00:28:23,041 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-21 00:28:23,041 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-21 00:28:23,042 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-21 00:28:23,043 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-21 00:28:23,043 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-21 00:28:23,044 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-21 00:28:23,044 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-21 00:28:23,045 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-21 00:28:23,046 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-21 00:28:23,046 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-21 00:28:23,047 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-21 00:28:23,047 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-21 00:28:23,048 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-21 00:28:23,049 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-21 00:28:23,049 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-21 00:28:23,050 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-21 00:28:23,050 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-21 00:28:23,051 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-21 00:28:23,052 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-21 00:28:23,052 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-21 00:28:23,053 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-21 00:28:23,053 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-21 00:28:23,054 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-21 00:28:23,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:23,135 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:28:23,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385539,385552] [2021-11-21 00:28:23,603 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385684,385697] [2021-11-21 00:28:23,603 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385830,385843] [2021-11-21 00:28:23,604 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[385995,386008] [2021-11-21 00:28:23,604 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386153,386166] [2021-11-21 00:28:23,605 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386311,386324] [2021-11-21 00:28:23,606 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386469,386482] [2021-11-21 00:28:23,606 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386629,386642] [2021-11-21 00:28:23,607 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386788,386801] [2021-11-21 00:28:23,608 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[386927,386940] [2021-11-21 00:28:23,608 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387069,387082] [2021-11-21 00:28:23,609 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387218,387231] [2021-11-21 00:28:23,609 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387357,387370] [2021-11-21 00:28:23,610 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387512,387525] [2021-11-21 00:28:23,610 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387672,387685] [2021-11-21 00:28:23,611 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387823,387836] [2021-11-21 00:28:23,611 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[387974,387987] [2021-11-21 00:28:23,612 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388126,388139] [2021-11-21 00:28:23,613 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388275,388288] [2021-11-21 00:28:23,613 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388423,388436] [2021-11-21 00:28:23,614 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388580,388593] [2021-11-21 00:28:23,614 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388729,388742] [2021-11-21 00:28:23,615 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[388885,388898] [2021-11-21 00:28:23,615 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389038,389051] [2021-11-21 00:28:23,616 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389184,389197] [2021-11-21 00:28:23,617 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389327,389340] [2021-11-21 00:28:23,617 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389479,389492] [2021-11-21 00:28:23,618 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389625,389638] [2021-11-21 00:28:23,618 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389770,389783] [2021-11-21 00:28:23,619 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[389924,389937] [2021-11-21 00:28:23,619 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390075,390088] [2021-11-21 00:28:23,620 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390230,390243] [2021-11-21 00:28:23,620 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390382,390395] [2021-11-21 00:28:23,621 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390537,390550] [2021-11-21 00:28:23,621 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390701,390714] [2021-11-21 00:28:23,622 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[390857,390870] [2021-11-21 00:28:23,623 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391021,391034] [2021-11-21 00:28:23,623 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391163,391176] [2021-11-21 00:28:23,624 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391321,391334] [2021-11-21 00:28:23,624 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391488,391501] [2021-11-21 00:28:23,625 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391647,391660] [2021-11-21 00:28:23,625 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391806,391819] [2021-11-21 00:28:23,626 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[391955,391968] [2021-11-21 00:28:23,626 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392102,392115] [2021-11-21 00:28:23,627 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392241,392254] [2021-11-21 00:28:23,627 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392404,392417] [2021-11-21 00:28:23,628 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392570,392583] [2021-11-21 00:28:23,628 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392734,392747] [2021-11-21 00:28:23,629 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[392899,392912] [2021-11-21 00:28:23,630 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393064,393077] [2021-11-21 00:28:23,630 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393230,393243] [2021-11-21 00:28:23,631 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393395,393408] [2021-11-21 00:28:23,631 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393562,393575] [2021-11-21 00:28:23,632 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393722,393735] [2021-11-21 00:28:23,632 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[393884,393897] [2021-11-21 00:28:23,633 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394043,394056] [2021-11-21 00:28:23,634 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394189,394202] [2021-11-21 00:28:23,635 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394332,394345] [2021-11-21 00:28:23,635 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394476,394489] [2021-11-21 00:28:23,636 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394619,394632] [2021-11-21 00:28:23,636 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394763,394776] [2021-11-21 00:28:23,637 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[394904,394917] [2021-11-21 00:28:23,637 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395042,395055] [2021-11-21 00:28:23,638 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395200,395213] [2021-11-21 00:28:23,638 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395359,395372] [2021-11-21 00:28:23,639 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395515,395528] [2021-11-21 00:28:23,639 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395664,395677] [2021-11-21 00:28:23,640 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395816,395829] [2021-11-21 00:28:23,640 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[395967,395980] [2021-11-21 00:28:23,641 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396116,396129] [2021-11-21 00:28:23,641 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396268,396281] [2021-11-21 00:28:23,642 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396416,396429] [2021-11-21 00:28:23,643 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396569,396582] [2021-11-21 00:28:23,643 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396720,396733] [2021-11-21 00:28:23,644 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[396870,396883] [2021-11-21 00:28:23,644 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397017,397030] [2021-11-21 00:28:23,645 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397168,397181] [2021-11-21 00:28:23,645 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397319,397332] [2021-11-21 00:28:23,646 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397467,397480] [2021-11-21 00:28:23,646 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397633,397646] [2021-11-21 00:28:23,647 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397802,397815] [2021-11-21 00:28:23,647 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[397969,397982] [2021-11-21 00:28:23,648 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398137,398150] [2021-11-21 00:28:23,648 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398287,398300] [2021-11-21 00:28:23,649 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398434,398447] [2021-11-21 00:28:23,649 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398595,398608] [2021-11-21 00:28:23,650 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398765,398778] [2021-11-21 00:28:23,650 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_b9dd15d1-8b37-4a8e-905d-6df5d404789e/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i[398927,398940] [2021-11-21 00:28:23,655 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:24,011 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:28:24,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24 WrapperNode [2021-11-21 00:28:24,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:24,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:24,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:28:24,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:28:24,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,451 INFO L137 Inliner]: procedures = 616, calls = 2803, calls flagged for inlining = 287, calls inlined = 187, statements flattened = 4770 [2021-11-21 00:28:24,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:24,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:28:24,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:28:24,453 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:28:24,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:28:24,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:28:24,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:28:24,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:28:24,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (1/1) ... [2021-11-21 00:28:24,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:24,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:24,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:28:24,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:28:24,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 00:28:24,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 00:28:24,969 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 00:28:24,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 00:28:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:28:24,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:28:24,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-21 00:28:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_device_lock_of_kaweth_device [2021-11-21 00:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 00:28:24,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 00:28:24,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 00:28:24,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_alloc_coherent [2021-11-21 00:28:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:28:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-21 00:28:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2021-11-21 00:28:24,974 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2021-11-21 00:28:24,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 00:28:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 00:28:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 00:28:24,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 00:28:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:28:24,975 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2021-11-21 00:28:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2021-11-21 00:28:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:28:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:28:24,976 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:28:24,976 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:28:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:28:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:28:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 00:28:24,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 00:28:24,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:28:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 00:28:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 00:28:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:28:24,978 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:28:24,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:28:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2021-11-21 00:28:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2021-11-21 00:28:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:28:24,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 00:28:24,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 00:28:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:28:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:28:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 00:28:24,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 00:28:24,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-21 00:28:24,981 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-21 00:28:24,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:28:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 00:28:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 00:28:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 00:28:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 00:28:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:28:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:28:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 00:28:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 00:28:24,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-21 00:28:24,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-21 00:28:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:28:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:28:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2021-11-21 00:28:24,984 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2021-11-21 00:28:24,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 00:28:24,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 00:28:24,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_129 [2021-11-21 00:28:24,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_129 [2021-11-21 00:28:24,990 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2021-11-21 00:28:24,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2021-11-21 00:28:24,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 00:28:24,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 00:28:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:28:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:28:24,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:28:24,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:28:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:28:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:28:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:28:25,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:28:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 00:28:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_irq_check_alloc_flags [2021-11-21 00:28:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 00:28:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 00:28:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:28:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:28:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-21 00:28:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-21 00:28:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-11-21 00:28:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-11-21 00:28:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2021-11-21 00:28:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2021-11-21 00:28:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:28:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:28:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-21 00:28:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-21 00:28:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:28:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:28:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:28:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:28:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:28:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-21 00:28:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_133 [2021-11-21 00:28:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_133 [2021-11-21 00:28:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-21 00:28:25,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-21 00:28:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2021-11-21 00:28:25,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2021-11-21 00:28:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-21 00:28:25,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_device_lock_of_kaweth_device [2021-11-21 00:28:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 00:28:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 00:28:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 00:28:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 00:28:25,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 00:28:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_free_urb [2021-11-21 00:28:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 00:28:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 00:28:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 00:28:25,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 00:28:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:28:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 00:28:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 00:28:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 00:28:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 00:28:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:28:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 00:28:25,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_usb_free_coherent [2021-11-21 00:28:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:28:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 00:28:25,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 00:28:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:28:25,013 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:28:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-21 00:28:25,013 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-21 00:28:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:28:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:28:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-21 00:28:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-21 00:28:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-21 00:28:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-21 00:28:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 00:28:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_alloc_usb_lock_check_alloc_flags [2021-11-21 00:28:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 00:28:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_usb_alloc_urb [2021-11-21 00:28:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 00:28:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 00:28:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 00:28:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 00:28:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:28:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:28:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2021-11-21 00:28:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2021-11-21 00:28:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 00:28:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-21 00:28:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-21 00:28:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-21 00:28:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 00:28:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 00:28:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:28:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 00:28:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 00:28:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:28:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:28:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 00:28:25,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 00:28:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2021-11-21 00:28:25,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2021-11-21 00:28:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2021-11-21 00:28:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2021-11-21 00:28:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:28:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:28:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 00:28:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 00:28:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 00:28:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2021-11-21 00:28:25,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2021-11-21 00:28:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2021-11-21 00:28:25,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2021-11-21 00:28:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:28:25,022 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2021-11-21 00:28:25,022 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2021-11-21 00:28:25,976 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:28:25,981 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:28:26,169 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:28:34,748 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:28:35,500 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:28:35,500 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:28:35,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:35 BoogieIcfgContainer [2021-11-21 00:28:35,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:28:35,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:28:35,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:28:35,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:28:35,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:28:18" (1/3) ... [2021-11-21 00:28:35,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d30b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:35, skipping insertion in model container [2021-11-21 00:28:35,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:24" (2/3) ... [2021-11-21 00:28:35,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d30b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:35, skipping insertion in model container [2021-11-21 00:28:35,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:35" (3/3) ... [2021-11-21 00:28:35,519 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--usb--kaweth.ko.cil.i [2021-11-21 00:28:35,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:28:35,530 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-21 00:28:35,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:28:35,611 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 00:28:35,612 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-21 00:28:35,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) [2021-11-21 00:28:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 00:28:35,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:35,680 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:35,681 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:35,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1899553895, now seen corresponding path program 1 times [2021-11-21 00:28:35,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:35,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301605805] [2021-11-21 00:28:35,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:35,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:36,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:36,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301605805] [2021-11-21 00:28:36,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301605805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:36,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:36,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:36,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805830354] [2021-11-21 00:28:36,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:36,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:36,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:36,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:36,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:36,796 INFO L87 Difference]: Start difference. First operand has 916 states, 505 states have (on average 1.2752475247524753) internal successors, (644), 545 states have internal predecessors, (644), 301 states have call successors, (301), 81 states have call predecessors, (301), 80 states have return successors, (297), 296 states have call predecessors, (297), 297 states have call successors, (297) Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 00:28:40,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:41,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:41,502 INFO L93 Difference]: Finished difference Result 1903 states and 2665 transitions. [2021-11-21 00:28:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:41,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2021-11-21 00:28:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:41,530 INFO L225 Difference]: With dead ends: 1903 [2021-11-21 00:28:41,531 INFO L226 Difference]: Without dead ends: 1042 [2021-11-21 00:28:41,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:28:41,546 INFO L933 BasicCegarLoop]: 1087 mSDtfsCounter, 1174 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1178 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:41,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1178 Valid, 2318 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 00:28:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-11-21 00:28:41,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1033. [2021-11-21 00:28:41,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 576 states have (on average 1.2100694444444444) internal successors, (697), 613 states have internal predecessors, (697), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:28:41,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1351 transitions. [2021-11-21 00:28:41,734 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1351 transitions. Word has length 51 [2021-11-21 00:28:41,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:41,736 INFO L470 AbstractCegarLoop]: Abstraction has 1033 states and 1351 transitions. [2021-11-21 00:28:41,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 00:28:41,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1351 transitions. [2021-11-21 00:28:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 00:28:41,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:41,741 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:41,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:28:41,742 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2086936408, now seen corresponding path program 1 times [2021-11-21 00:28:41,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213846542] [2021-11-21 00:28:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:41,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:42,267 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:42,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213846542] [2021-11-21 00:28:42,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213846542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:42,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:42,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:42,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940079958] [2021-11-21 00:28:42,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:42,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:42,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:42,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:42,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:42,271 INFO L87 Difference]: Start difference. First operand 1033 states and 1351 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 00:28:45,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:46,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:46,417 INFO L93 Difference]: Finished difference Result 1042 states and 1358 transitions. [2021-11-21 00:28:46,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:46,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2021-11-21 00:28:46,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:46,431 INFO L225 Difference]: With dead ends: 1042 [2021-11-21 00:28:46,431 INFO L226 Difference]: Without dead ends: 1040 [2021-11-21 00:28:46,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:28:46,433 INFO L933 BasicCegarLoop]: 1071 mSDtfsCounter, 1156 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2284 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:46,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 2284 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2021-11-21 00:28:46,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2021-11-21 00:28:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1031. [2021-11-21 00:28:46,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1031 states, 575 states have (on average 1.208695652173913) internal successors, (695), 611 states have internal predecessors, (695), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:28:46,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1349 transitions. [2021-11-21 00:28:46,526 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1349 transitions. Word has length 56 [2021-11-21 00:28:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:46,527 INFO L470 AbstractCegarLoop]: Abstraction has 1031 states and 1349 transitions. [2021-11-21 00:28:46,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 00:28:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1349 transitions. [2021-11-21 00:28:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 00:28:46,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:46,531 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:46,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:28:46,532 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:46,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:46,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1573572753, now seen corresponding path program 1 times [2021-11-21 00:28:46,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:46,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97714696] [2021-11-21 00:28:46,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:46,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:46,895 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:46,895 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:46,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97714696] [2021-11-21 00:28:46,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97714696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:46,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:46,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:46,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749616378] [2021-11-21 00:28:46,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:46,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:46,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:46,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:46,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:46,899 INFO L87 Difference]: Start difference. First operand 1031 states and 1349 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 00:28:50,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:50,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:50,879 INFO L93 Difference]: Finished difference Result 1031 states and 1349 transitions. [2021-11-21 00:28:50,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:50,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2021-11-21 00:28:50,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:50,891 INFO L225 Difference]: With dead ends: 1031 [2021-11-21 00:28:50,892 INFO L226 Difference]: Without dead ends: 1029 [2021-11-21 00:28:50,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:28:50,894 INFO L933 BasicCegarLoop]: 1020 mSDtfsCounter, 1167 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 2040 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:50,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 2040 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:28:50,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2021-11-21 00:28:50,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 1029. [2021-11-21 00:28:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 574 states have (on average 1.2073170731707317) internal successors, (693), 609 states have internal predecessors, (693), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:28:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1347 transitions. [2021-11-21 00:28:50,977 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1347 transitions. Word has length 61 [2021-11-21 00:28:50,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:50,978 INFO L470 AbstractCegarLoop]: Abstraction has 1029 states and 1347 transitions. [2021-11-21 00:28:50,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 00:28:50,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1347 transitions. [2021-11-21 00:28:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 00:28:50,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:50,981 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:50,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:28:50,982 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:50,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:50,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1946985049, now seen corresponding path program 1 times [2021-11-21 00:28:50,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:50,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605067191] [2021-11-21 00:28:50,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:50,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:51,264 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:51,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:51,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605067191] [2021-11-21 00:28:51,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605067191] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:51,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:51,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:51,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649296015] [2021-11-21 00:28:51,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:51,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:51,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:51,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:51,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:51,267 INFO L87 Difference]: Start difference. First operand 1029 states and 1347 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 00:28:53,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:55,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:55,213 INFO L93 Difference]: Finished difference Result 1029 states and 1347 transitions. [2021-11-21 00:28:55,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:55,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2021-11-21 00:28:55,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:55,224 INFO L225 Difference]: With dead ends: 1029 [2021-11-21 00:28:55,225 INFO L226 Difference]: Without dead ends: 1027 [2021-11-21 00:28:55,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:28:55,227 INFO L933 BasicCegarLoop]: 1018 mSDtfsCounter, 1164 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:55,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 2036 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 00:28:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2021-11-21 00:28:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 1027. [2021-11-21 00:28:55,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 573 states have (on average 1.205933682373473) internal successors, (691), 607 states have internal predecessors, (691), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:28:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1345 transitions. [2021-11-21 00:28:55,357 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1345 transitions. Word has length 66 [2021-11-21 00:28:55,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:55,358 INFO L470 AbstractCegarLoop]: Abstraction has 1027 states and 1345 transitions. [2021-11-21 00:28:55,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 00:28:55,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1345 transitions. [2021-11-21 00:28:55,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 00:28:55,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:55,361 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:55,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:28:55,361 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:55,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:55,362 INFO L85 PathProgramCache]: Analyzing trace with hash 993276308, now seen corresponding path program 1 times [2021-11-21 00:28:55,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:55,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222884031] [2021-11-21 00:28:55,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:55,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:55,654 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:55,655 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:55,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222884031] [2021-11-21 00:28:55,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222884031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:55,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:55,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:55,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843888768] [2021-11-21 00:28:55,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:55,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:55,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:55,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:55,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:55,658 INFO L87 Difference]: Start difference. First operand 1027 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:28:58,896 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:28:59,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:59,640 INFO L93 Difference]: Finished difference Result 1036 states and 1352 transitions. [2021-11-21 00:28:59,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:59,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2021-11-21 00:28:59,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:59,650 INFO L225 Difference]: With dead ends: 1036 [2021-11-21 00:28:59,650 INFO L226 Difference]: Without dead ends: 1034 [2021-11-21 00:28:59,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:28:59,652 INFO L933 BasicCegarLoop]: 1065 mSDtfsCounter, 1147 mSDsluCounter, 1408 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:59,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1151 Valid, 2272 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:28:59,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2021-11-21 00:28:59,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1025. [2021-11-21 00:28:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 572 states have (on average 1.2045454545454546) internal successors, (689), 605 states have internal predecessors, (689), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:28:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1343 transitions. [2021-11-21 00:28:59,720 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1343 transitions. Word has length 71 [2021-11-21 00:28:59,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:59,721 INFO L470 AbstractCegarLoop]: Abstraction has 1025 states and 1343 transitions. [2021-11-21 00:28:59,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:28:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1343 transitions. [2021-11-21 00:28:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-21 00:28:59,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:59,723 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:28:59,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:28:59,724 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:28:59,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:59,724 INFO L85 PathProgramCache]: Analyzing trace with hash 950289720, now seen corresponding path program 1 times [2021-11-21 00:28:59,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:59,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684896616] [2021-11-21 00:28:59,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:59,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:59,987 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:28:59,988 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:59,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684896616] [2021-11-21 00:28:59,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684896616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:59,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:59,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:28:59,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228612311] [2021-11-21 00:28:59,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:59,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:59,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:59,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:59,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:59,990 INFO L87 Difference]: Start difference. First operand 1025 states and 1343 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:29:02,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:03,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:03,781 INFO L93 Difference]: Finished difference Result 1025 states and 1343 transitions. [2021-11-21 00:29:03,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:03,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 76 [2021-11-21 00:29:03,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:03,790 INFO L225 Difference]: With dead ends: 1025 [2021-11-21 00:29:03,790 INFO L226 Difference]: Without dead ends: 1023 [2021-11-21 00:29:03,791 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 00:29:03,792 INFO L933 BasicCegarLoop]: 1014 mSDtfsCounter, 1158 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:03,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1160 Valid, 2028 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:29:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2021-11-21 00:29:03,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2021-11-21 00:29:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 571 states have (on average 1.203152364273205) internal successors, (687), 603 states have internal predecessors, (687), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:03,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1341 transitions. [2021-11-21 00:29:03,876 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1341 transitions. Word has length 76 [2021-11-21 00:29:03,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:03,877 INFO L470 AbstractCegarLoop]: Abstraction has 1023 states and 1341 transitions. [2021-11-21 00:29:03,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:29:03,877 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1341 transitions. [2021-11-21 00:29:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-21 00:29:03,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:03,879 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:03,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:29:03,879 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:03,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1809153545, now seen corresponding path program 1 times [2021-11-21 00:29:03,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:03,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137875641] [2021-11-21 00:29:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:03,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:04,142 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:04,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137875641] [2021-11-21 00:29:04,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137875641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:04,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:04,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:04,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700783013] [2021-11-21 00:29:04,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:04,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:04,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:04,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:04,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:04,145 INFO L87 Difference]: Start difference. First operand 1023 states and 1341 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:29:07,226 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:07,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:07,855 INFO L93 Difference]: Finished difference Result 1032 states and 1348 transitions. [2021-11-21 00:29:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 81 [2021-11-21 00:29:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:07,864 INFO L225 Difference]: With dead ends: 1032 [2021-11-21 00:29:07,864 INFO L226 Difference]: Without dead ends: 1030 [2021-11-21 00:29:07,865 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 00:29:07,866 INFO L933 BasicCegarLoop]: 1061 mSDtfsCounter, 1141 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:07,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1145 Valid, 2264 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:29:07,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2021-11-21 00:29:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1021. [2021-11-21 00:29:07,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 570 states have (on average 1.2017543859649122) internal successors, (685), 601 states have internal predecessors, (685), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:07,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1339 transitions. [2021-11-21 00:29:07,935 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1339 transitions. Word has length 81 [2021-11-21 00:29:07,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:07,935 INFO L470 AbstractCegarLoop]: Abstraction has 1021 states and 1339 transitions. [2021-11-21 00:29:07,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:29:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1339 transitions. [2021-11-21 00:29:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-21 00:29:07,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:07,937 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:07,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:29:07,938 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:07,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1665949854, now seen corresponding path program 1 times [2021-11-21 00:29:07,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:07,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565630549] [2021-11-21 00:29:07,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:07,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:08,200 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:08,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565630549] [2021-11-21 00:29:08,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565630549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:08,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:08,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:08,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356763112] [2021-11-21 00:29:08,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:08,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:08,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:08,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:08,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:08,203 INFO L87 Difference]: Start difference. First operand 1021 states and 1339 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:29:10,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:10,941 INFO L93 Difference]: Finished difference Result 1021 states and 1339 transitions. [2021-11-21 00:29:10,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:10,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2021-11-21 00:29:10,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:10,947 INFO L225 Difference]: With dead ends: 1021 [2021-11-21 00:29:10,948 INFO L226 Difference]: Without dead ends: 1019 [2021-11-21 00:29:10,948 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 00:29:10,949 INFO L933 BasicCegarLoop]: 1010 mSDtfsCounter, 1156 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1158 SdHoareTripleChecker+Valid, 2016 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:10,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1158 Valid, 2016 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 00:29:10,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2021-11-21 00:29:11,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2021-11-21 00:29:11,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 569 states have (on average 1.2003514938488578) internal successors, (683), 599 states have internal predecessors, (683), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:11,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 1337 transitions. [2021-11-21 00:29:11,042 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 1337 transitions. Word has length 86 [2021-11-21 00:29:11,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:11,042 INFO L470 AbstractCegarLoop]: Abstraction has 1019 states and 1337 transitions. [2021-11-21 00:29:11,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:29:11,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 1337 transitions. [2021-11-21 00:29:11,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 00:29:11,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:11,044 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:11,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:29:11,045 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:11,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1045124389, now seen corresponding path program 1 times [2021-11-21 00:29:11,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:11,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003726125] [2021-11-21 00:29:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:11,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:11,277 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:11,277 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:11,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003726125] [2021-11-21 00:29:11,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003726125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:11,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:11,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:11,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731889688] [2021-11-21 00:29:11,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:11,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:11,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:11,280 INFO L87 Difference]: Start difference. First operand 1019 states and 1337 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:29:14,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:15,040 INFO L93 Difference]: Finished difference Result 1028 states and 1344 transitions. [2021-11-21 00:29:15,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:15,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 88 [2021-11-21 00:29:15,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:15,048 INFO L225 Difference]: With dead ends: 1028 [2021-11-21 00:29:15,048 INFO L226 Difference]: Without dead ends: 1026 [2021-11-21 00:29:15,049 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 00:29:15,050 INFO L933 BasicCegarLoop]: 1057 mSDtfsCounter, 1134 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1138 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:15,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1138 Valid, 2256 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:29:15,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2021-11-21 00:29:15,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1017. [2021-11-21 00:29:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 568 states have (on average 1.198943661971831) internal successors, (681), 597 states have internal predecessors, (681), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:15,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1335 transitions. [2021-11-21 00:29:15,121 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1335 transitions. Word has length 88 [2021-11-21 00:29:15,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:15,122 INFO L470 AbstractCegarLoop]: Abstraction has 1017 states and 1335 transitions. [2021-11-21 00:29:15,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:29:15,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1335 transitions. [2021-11-21 00:29:15,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 00:29:15,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:15,123 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:15,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:29:15,123 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:15,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:15,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1170818888, now seen corresponding path program 1 times [2021-11-21 00:29:15,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:15,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818350105] [2021-11-21 00:29:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:15,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:15,339 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:15,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:15,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818350105] [2021-11-21 00:29:15,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818350105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:15,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:15,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:15,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849511030] [2021-11-21 00:29:15,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:15,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:15,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:15,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:15,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:15,341 INFO L87 Difference]: Start difference. First operand 1017 states and 1335 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 00:29:17,611 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:19,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:20,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:20,147 INFO L93 Difference]: Finished difference Result 1017 states and 1335 transitions. [2021-11-21 00:29:20,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:20,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 93 [2021-11-21 00:29:20,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:20,153 INFO L225 Difference]: With dead ends: 1017 [2021-11-21 00:29:20,154 INFO L226 Difference]: Without dead ends: 1015 [2021-11-21 00:29:20,154 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 00:29:20,155 INFO L933 BasicCegarLoop]: 1006 mSDtfsCounter, 1147 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:20,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1149 Valid, 2012 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-21 00:29:20,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-11-21 00:29:20,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2021-11-21 00:29:20,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 567 states have (on average 1.1975308641975309) internal successors, (679), 595 states have internal predecessors, (679), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:20,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1333 transitions. [2021-11-21 00:29:20,231 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1333 transitions. Word has length 93 [2021-11-21 00:29:20,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:20,232 INFO L470 AbstractCegarLoop]: Abstraction has 1015 states and 1333 transitions. [2021-11-21 00:29:20,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 00:29:20,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1333 transitions. [2021-11-21 00:29:20,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 00:29:20,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:20,234 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:20,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 00:29:20,234 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:20,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:20,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2080074411, now seen corresponding path program 1 times [2021-11-21 00:29:20,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:20,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591001901] [2021-11-21 00:29:20,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:20,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:20,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:20,483 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:20,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591001901] [2021-11-21 00:29:20,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591001901] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:20,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:20,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:20,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549026464] [2021-11-21 00:29:20,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:20,484 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:20,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:20,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:20,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:20,485 INFO L87 Difference]: Start difference. First operand 1015 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:29:23,168 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:24,709 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:25,148 INFO L93 Difference]: Finished difference Result 1015 states and 1333 transitions. [2021-11-21 00:29:25,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:25,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2021-11-21 00:29:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:25,156 INFO L225 Difference]: With dead ends: 1015 [2021-11-21 00:29:25,156 INFO L226 Difference]: Without dead ends: 1013 [2021-11-21 00:29:25,157 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 00:29:25,158 INFO L933 BasicCegarLoop]: 1004 mSDtfsCounter, 1144 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 2008 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:25,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1146 Valid, 2008 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-11-21 00:29:25,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1013 states. [2021-11-21 00:29:25,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1013 to 1013. [2021-11-21 00:29:25,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 566 states have (on average 1.196113074204947) internal successors, (677), 593 states have internal predecessors, (677), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1331 transitions. [2021-11-21 00:29:25,238 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1331 transitions. Word has length 98 [2021-11-21 00:29:25,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:25,239 INFO L470 AbstractCegarLoop]: Abstraction has 1013 states and 1331 transitions. [2021-11-21 00:29:25,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:29:25,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1331 transitions. [2021-11-21 00:29:25,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 00:29:25,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:25,241 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:25,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:29:25,242 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:25,242 INFO L85 PathProgramCache]: Analyzing trace with hash 499093469, now seen corresponding path program 1 times [2021-11-21 00:29:25,242 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:25,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255348904] [2021-11-21 00:29:25,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:25,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:25,443 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:25,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255348904] [2021-11-21 00:29:25,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255348904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:25,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:25,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:25,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631971069] [2021-11-21 00:29:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:25,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:25,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:25,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:25,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:25,446 INFO L87 Difference]: Start difference. First operand 1013 states and 1331 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:29:28,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:29,167 INFO L93 Difference]: Finished difference Result 1013 states and 1331 transitions. [2021-11-21 00:29:29,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:29,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 103 [2021-11-21 00:29:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:29,175 INFO L225 Difference]: With dead ends: 1013 [2021-11-21 00:29:29,175 INFO L226 Difference]: Without dead ends: 1011 [2021-11-21 00:29:29,176 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 00:29:29,176 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1141 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:29,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1143 Valid, 2004 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:29:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2021-11-21 00:29:29,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 1011. [2021-11-21 00:29:29,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1011 states, 565 states have (on average 1.1946902654867257) internal successors, (675), 591 states have internal predecessors, (675), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:29,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1011 states to 1011 states and 1329 transitions. [2021-11-21 00:29:29,257 INFO L78 Accepts]: Start accepts. Automaton has 1011 states and 1329 transitions. Word has length 103 [2021-11-21 00:29:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:29,258 INFO L470 AbstractCegarLoop]: Abstraction has 1011 states and 1329 transitions. [2021-11-21 00:29:29,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:29:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1011 states and 1329 transitions. [2021-11-21 00:29:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 00:29:29,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:29,261 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:29,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:29:29,261 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:29,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1771861774, now seen corresponding path program 1 times [2021-11-21 00:29:29,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:29,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087577492] [2021-11-21 00:29:29,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:29,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:29,504 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:29,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087577492] [2021-11-21 00:29:29,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087577492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:29,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:29,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:29,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039426895] [2021-11-21 00:29:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:29,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:29,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:29,506 INFO L87 Difference]: Start difference. First operand 1011 states and 1329 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:29:32,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:32,128 INFO L93 Difference]: Finished difference Result 1011 states and 1329 transitions. [2021-11-21 00:29:32,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:32,129 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 108 [2021-11-21 00:29:32,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:32,136 INFO L225 Difference]: With dead ends: 1011 [2021-11-21 00:29:32,136 INFO L226 Difference]: Without dead ends: 1009 [2021-11-21 00:29:32,137 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 00:29:32,137 INFO L933 BasicCegarLoop]: 1000 mSDtfsCounter, 1138 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:32,138 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1140 Valid, 2000 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 00:29:32,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1009 states. [2021-11-21 00:29:32,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1009 to 1009. [2021-11-21 00:29:32,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 564 states have (on average 1.1932624113475176) internal successors, (673), 589 states have internal predecessors, (673), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:32,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1327 transitions. [2021-11-21 00:29:32,223 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1327 transitions. Word has length 108 [2021-11-21 00:29:32,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:32,223 INFO L470 AbstractCegarLoop]: Abstraction has 1009 states and 1327 transitions. [2021-11-21 00:29:32,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:29:32,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1327 transitions. [2021-11-21 00:29:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 00:29:32,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:32,226 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:32,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 00:29:32,226 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:32,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:32,227 INFO L85 PathProgramCache]: Analyzing trace with hash -201463559, now seen corresponding path program 1 times [2021-11-21 00:29:32,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:32,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773185753] [2021-11-21 00:29:32,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:32,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:32,427 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:32,427 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:32,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773185753] [2021-11-21 00:29:32,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773185753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:32,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:32,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:32,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847269651] [2021-11-21 00:29:32,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:32,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:32,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:32,430 INFO L87 Difference]: Start difference. First operand 1009 states and 1327 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:29:34,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:35,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:36,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:36,238 INFO L93 Difference]: Finished difference Result 1009 states and 1327 transitions. [2021-11-21 00:29:36,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:36,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 113 [2021-11-21 00:29:36,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:36,246 INFO L225 Difference]: With dead ends: 1009 [2021-11-21 00:29:36,246 INFO L226 Difference]: Without dead ends: 1007 [2021-11-21 00:29:36,247 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 00:29:36,248 INFO L933 BasicCegarLoop]: 998 mSDtfsCounter, 1135 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:36,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1137 Valid, 1996 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:29:36,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2021-11-21 00:29:36,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 1007. [2021-11-21 00:29:36,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 563 states have (on average 1.191829484902309) internal successors, (671), 587 states have internal predecessors, (671), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:36,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1325 transitions. [2021-11-21 00:29:36,339 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1325 transitions. Word has length 113 [2021-11-21 00:29:36,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:36,339 INFO L470 AbstractCegarLoop]: Abstraction has 1007 states and 1325 transitions. [2021-11-21 00:29:36,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:29:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1325 transitions. [2021-11-21 00:29:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 00:29:36,342 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:36,342 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:36,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 00:29:36,343 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:36,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1614493235, now seen corresponding path program 1 times [2021-11-21 00:29:36,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:36,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125946794] [2021-11-21 00:29:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:36,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:36,571 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:36,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125946794] [2021-11-21 00:29:36,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125946794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:36,572 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:36,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:36,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848288538] [2021-11-21 00:29:36,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:36,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:36,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:36,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:36,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:36,574 INFO L87 Difference]: Start difference. First operand 1007 states and 1325 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:29:39,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:40,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:40,172 INFO L93 Difference]: Finished difference Result 1016 states and 1332 transitions. [2021-11-21 00:29:40,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:40,173 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 118 [2021-11-21 00:29:40,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:40,180 INFO L225 Difference]: With dead ends: 1016 [2021-11-21 00:29:40,180 INFO L226 Difference]: Without dead ends: 1014 [2021-11-21 00:29:40,181 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 00:29:40,182 INFO L933 BasicCegarLoop]: 1045 mSDtfsCounter, 1118 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:40,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 2232 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:29:40,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2021-11-21 00:29:40,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1005. [2021-11-21 00:29:40,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 562 states have (on average 1.190391459074733) internal successors, (669), 585 states have internal predecessors, (669), 328 states have call successors, (328), 102 states have call predecessors, (328), 101 states have return successors, (326), 324 states have call predecessors, (326), 326 states have call successors, (326) [2021-11-21 00:29:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1323 transitions. [2021-11-21 00:29:40,279 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1323 transitions. Word has length 118 [2021-11-21 00:29:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:40,279 INFO L470 AbstractCegarLoop]: Abstraction has 1005 states and 1323 transitions. [2021-11-21 00:29:40,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:29:40,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1323 transitions. [2021-11-21 00:29:40,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 00:29:40,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:40,283 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:40,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 00:29:40,283 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:40,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:40,284 INFO L85 PathProgramCache]: Analyzing trace with hash -165107209, now seen corresponding path program 1 times [2021-11-21 00:29:40,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:40,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682168713] [2021-11-21 00:29:40,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:40,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2021-11-21 00:29:40,611 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:40,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682168713] [2021-11-21 00:29:40,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682168713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:40,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:40,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:40,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336618326] [2021-11-21 00:29:40,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:40,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:40,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:40,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:40,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:40,617 INFO L87 Difference]: Start difference. First operand 1005 states and 1323 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:29:43,078 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 00:29:44,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:44,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:44,681 INFO L93 Difference]: Finished difference Result 1963 states and 2462 transitions. [2021-11-21 00:29:44,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:44,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 148 [2021-11-21 00:29:44,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:44,719 INFO L225 Difference]: With dead ends: 1963 [2021-11-21 00:29:44,722 INFO L226 Difference]: Without dead ends: 1371 [2021-11-21 00:29:44,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:29:44,725 INFO L933 BasicCegarLoop]: 1058 mSDtfsCounter, 985 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:44,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [985 Valid, 1434 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-21 00:29:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2021-11-21 00:29:44,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1353. [2021-11-21 00:29:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1353 states, 767 states have (on average 1.1890482398956974) internal successors, (912), 790 states have internal predecessors, (912), 413 states have call successors, (413), 160 states have call predecessors, (413), 159 states have return successors, (411), 409 states have call predecessors, (411), 411 states have call successors, (411) [2021-11-21 00:29:44,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1736 transitions. [2021-11-21 00:29:44,854 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1736 transitions. Word has length 148 [2021-11-21 00:29:44,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:44,855 INFO L470 AbstractCegarLoop]: Abstraction has 1353 states and 1736 transitions. [2021-11-21 00:29:44,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (20), 1 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:29:44,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1736 transitions. [2021-11-21 00:29:44,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 00:29:44,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:44,858 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:44,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 00:29:44,858 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:44,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1140682789, now seen corresponding path program 1 times [2021-11-21 00:29:44,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:44,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185604438] [2021-11-21 00:29:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:44,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:45,094 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:45,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:45,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185604438] [2021-11-21 00:29:45,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185604438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:45,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:45,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:45,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039948327] [2021-11-21 00:29:45,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:45,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:45,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:45,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:45,097 INFO L87 Difference]: Start difference. First operand 1353 states and 1736 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 00:29:48,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:48,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:48,653 INFO L93 Difference]: Finished difference Result 1353 states and 1736 transitions. [2021-11-21 00:29:48,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:48,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 123 [2021-11-21 00:29:48,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:48,662 INFO L225 Difference]: With dead ends: 1353 [2021-11-21 00:29:48,662 INFO L226 Difference]: Without dead ends: 1351 [2021-11-21 00:29:48,663 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 00:29:48,664 INFO L933 BasicCegarLoop]: 994 mSDtfsCounter, 1129 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 1988 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:48,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 1988 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 00:29:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2021-11-21 00:29:48,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1351. [2021-11-21 00:29:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 766 states have (on average 1.1879895561357703) internal successors, (910), 788 states have internal predecessors, (910), 413 states have call successors, (413), 160 states have call predecessors, (413), 159 states have return successors, (411), 409 states have call predecessors, (411), 411 states have call successors, (411) [2021-11-21 00:29:48,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1734 transitions. [2021-11-21 00:29:48,791 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1734 transitions. Word has length 123 [2021-11-21 00:29:48,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:48,792 INFO L470 AbstractCegarLoop]: Abstraction has 1351 states and 1734 transitions. [2021-11-21 00:29:48,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 00:29:48,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1734 transitions. [2021-11-21 00:29:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-21 00:29:48,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:48,795 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:48,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 00:29:48,795 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:48,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:48,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2009046417, now seen corresponding path program 1 times [2021-11-21 00:29:48,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:48,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4316121] [2021-11-21 00:29:48,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:48,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:49,089 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2021-11-21 00:29:49,090 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:49,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4316121] [2021-11-21 00:29:49,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4316121] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:29:49,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089513426] [2021-11-21 00:29:49,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:49,091 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:49,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:29:49,096 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:29:49,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:29:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:50,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 3956 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:29:50,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:29:50,463 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2021-11-21 00:29:50,463 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:29:50,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089513426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:50,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:29:50,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-21 00:29:50,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054412889] [2021-11-21 00:29:50,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:50,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:29:50,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:50,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:29:50,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:29:50,465 INFO L87 Difference]: Start difference. First operand 1351 states and 1734 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:29:51,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:51,973 INFO L93 Difference]: Finished difference Result 1952 states and 2452 transitions. [2021-11-21 00:29:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:51,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 153 [2021-11-21 00:29:51,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:51,982 INFO L225 Difference]: With dead ends: 1952 [2021-11-21 00:29:51,983 INFO L226 Difference]: Without dead ends: 1369 [2021-11-21 00:29:51,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:29:51,986 INFO L933 BasicCegarLoop]: 1002 mSDtfsCounter, 1086 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1086 SdHoareTripleChecker+Valid, 1052 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:51,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1086 Valid, 1052 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:29:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2021-11-21 00:29:52,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1367. [2021-11-21 00:29:52,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 773 states have (on average 1.183699870633894) internal successors, (915), 795 states have internal predecessors, (915), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-21 00:29:52,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1747 transitions. [2021-11-21 00:29:52,120 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1747 transitions. Word has length 153 [2021-11-21 00:29:52,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:52,121 INFO L470 AbstractCegarLoop]: Abstraction has 1367 states and 1747 transitions. [2021-11-21 00:29:52,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:29:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1747 transitions. [2021-11-21 00:29:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 00:29:52,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:52,124 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:52,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:29:52,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-21 00:29:52,339 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:52,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:52,340 INFO L85 PathProgramCache]: Analyzing trace with hash -448572785, now seen corresponding path program 1 times [2021-11-21 00:29:52,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:52,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545614728] [2021-11-21 00:29:52,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:52,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:52,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:52,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545614728] [2021-11-21 00:29:52,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545614728] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:52,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:52,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:52,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679761546] [2021-11-21 00:29:52,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:52,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:52,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:52,607 INFO L87 Difference]: Start difference. First operand 1367 states and 1747 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:29:55,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:29:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:56,324 INFO L93 Difference]: Finished difference Result 1383 states and 1760 transitions. [2021-11-21 00:29:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:56,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 128 [2021-11-21 00:29:56,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:56,332 INFO L225 Difference]: With dead ends: 1383 [2021-11-21 00:29:56,332 INFO L226 Difference]: Without dead ends: 1381 [2021-11-21 00:29:56,333 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 00:29:56,333 INFO L933 BasicCegarLoop]: 1036 mSDtfsCounter, 1107 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1111 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:56,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1111 Valid, 2214 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:29:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2021-11-21 00:29:56,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1365. [2021-11-21 00:29:56,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 772 states have (on average 1.182642487046632) internal successors, (913), 793 states have internal predecessors, (913), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-21 00:29:56,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1745 transitions. [2021-11-21 00:29:56,470 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1745 transitions. Word has length 128 [2021-11-21 00:29:56,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:56,471 INFO L470 AbstractCegarLoop]: Abstraction has 1365 states and 1745 transitions. [2021-11-21 00:29:56,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:29:56,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1745 transitions. [2021-11-21 00:29:56,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 00:29:56,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:56,477 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:56,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 00:29:56,478 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:56,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:56,478 INFO L85 PathProgramCache]: Analyzing trace with hash 703783891, now seen corresponding path program 1 times [2021-11-21 00:29:56,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:56,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156955502] [2021-11-21 00:29:56,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:56,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:56,686 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:29:56,686 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:56,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156955502] [2021-11-21 00:29:56,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156955502] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:56,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:56,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:29:56,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154431700] [2021-11-21 00:29:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:56,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:56,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:56,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:56,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:56,689 INFO L87 Difference]: Start difference. First operand 1365 states and 1745 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:29:59,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:59,792 INFO L93 Difference]: Finished difference Result 1365 states and 1745 transitions. [2021-11-21 00:29:59,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:29:59,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 133 [2021-11-21 00:29:59,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:59,798 INFO L225 Difference]: With dead ends: 1365 [2021-11-21 00:29:59,799 INFO L226 Difference]: Without dead ends: 1363 [2021-11-21 00:29:59,799 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 00:29:59,800 INFO L933 BasicCegarLoop]: 985 mSDtfsCounter, 1118 mSDsluCounter, 1153 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:59,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1120 Valid, 1970 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 00:29:59,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2021-11-21 00:29:59,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1363. [2021-11-21 00:29:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1363 states, 771 states have (on average 1.1815823605706874) internal successors, (911), 791 states have internal predecessors, (911), 417 states have call successors, (417), 166 states have call predecessors, (417), 165 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-21 00:29:59,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1743 transitions. [2021-11-21 00:29:59,944 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1743 transitions. Word has length 133 [2021-11-21 00:29:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:59,944 INFO L470 AbstractCegarLoop]: Abstraction has 1363 states and 1743 transitions. [2021-11-21 00:29:59,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:29:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1743 transitions. [2021-11-21 00:29:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-21 00:29:59,948 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:59,948 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:29:59,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 00:29:59,948 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:29:59,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:59,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2041113775, now seen corresponding path program 1 times [2021-11-21 00:29:59,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:59,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594703935] [2021-11-21 00:29:59,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:59,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:30:00,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:00,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594703935] [2021-11-21 00:30:00,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594703935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:00,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:00,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:30:00,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94297420] [2021-11-21 00:30:00,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:00,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:30:00,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:00,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:30:00,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:00,174 INFO L87 Difference]: Start difference. First operand 1363 states and 1743 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 00:30:03,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:03,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:03,953 INFO L93 Difference]: Finished difference Result 1834 states and 2316 transitions. [2021-11-21 00:30:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:30:03,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 138 [2021-11-21 00:30:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:03,964 INFO L225 Difference]: With dead ends: 1834 [2021-11-21 00:30:03,964 INFO L226 Difference]: Without dead ends: 1832 [2021-11-21 00:30:03,965 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 00:30:03,966 INFO L933 BasicCegarLoop]: 1143 mSDtfsCounter, 860 mSDsluCounter, 2203 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:03,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [863 Valid, 3050 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:30:03,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2021-11-21 00:30:04,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1802. [2021-11-21 00:30:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1011 states have (on average 1.1681503461918892) internal successors, (1181), 1036 states have internal predecessors, (1181), 553 states have call successors, (553), 230 states have call predecessors, (553), 228 states have return successors, (555), 544 states have call predecessors, (555), 551 states have call successors, (555) [2021-11-21 00:30:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2289 transitions. [2021-11-21 00:30:04,196 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2289 transitions. Word has length 138 [2021-11-21 00:30:04,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:04,197 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 2289 transitions. [2021-11-21 00:30:04,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 00:30:04,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2289 transitions. [2021-11-21 00:30:04,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-21 00:30:04,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:04,200 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:04,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 00:30:04,201 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:30:04,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:04,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1797852913, now seen corresponding path program 1 times [2021-11-21 00:30:04,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:04,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641499595] [2021-11-21 00:30:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:04,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:04,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:04,407 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:30:04,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:04,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641499595] [2021-11-21 00:30:04,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641499595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:04,408 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:04,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:30:04,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826261219] [2021-11-21 00:30:04,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:04,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:30:04,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:04,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:30:04,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:04,413 INFO L87 Difference]: Start difference. First operand 1802 states and 2289 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 00:30:06,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:08,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:08,107 INFO L93 Difference]: Finished difference Result 1802 states and 2289 transitions. [2021-11-21 00:30:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:30:08,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 143 [2021-11-21 00:30:08,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:08,121 INFO L225 Difference]: With dead ends: 1802 [2021-11-21 00:30:08,122 INFO L226 Difference]: Without dead ends: 1800 [2021-11-21 00:30:08,123 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 00:30:08,123 INFO L933 BasicCegarLoop]: 983 mSDtfsCounter, 1114 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1116 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:08,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1116 Valid, 1966 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:30:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-21 00:30:08,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1800. [2021-11-21 00:30:08,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1800 states, 1010 states have (on average 1.1673267326732673) internal successors, (1179), 1034 states have internal predecessors, (1179), 553 states have call successors, (553), 230 states have call predecessors, (553), 228 states have return successors, (555), 544 states have call predecessors, (555), 551 states have call successors, (555) [2021-11-21 00:30:08,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1800 states to 1800 states and 2287 transitions. [2021-11-21 00:30:08,351 INFO L78 Accepts]: Start accepts. Automaton has 1800 states and 2287 transitions. Word has length 143 [2021-11-21 00:30:08,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:08,351 INFO L470 AbstractCegarLoop]: Abstraction has 1800 states and 2287 transitions. [2021-11-21 00:30:08,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-21 00:30:08,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1800 states and 2287 transitions. [2021-11-21 00:30:08,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-21 00:30:08,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:08,355 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:08,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 00:30:08,356 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:30:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:08,356 INFO L85 PathProgramCache]: Analyzing trace with hash 594163738, now seen corresponding path program 1 times [2021-11-21 00:30:08,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:08,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749187250] [2021-11-21 00:30:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:08,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2021-11-21 00:30:08,729 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:08,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749187250] [2021-11-21 00:30:08,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749187250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:08,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:08,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:30:08,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69922174] [2021-11-21 00:30:08,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:08,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:30:08,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:08,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:30:08,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:08,731 INFO L87 Difference]: Start difference. First operand 1800 states and 2287 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:30:11,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:13,927 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:15,955 WARN L515 Checker$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 00:30:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:17,045 INFO L93 Difference]: Finished difference Result 3713 states and 4796 transitions. [2021-11-21 00:30:17,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:30:17,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 177 [2021-11-21 00:30:17,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:17,063 INFO L225 Difference]: With dead ends: 3713 [2021-11-21 00:30:17,063 INFO L226 Difference]: Without dead ends: 1978 [2021-11-21 00:30:17,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 00:30:17,072 INFO L933 BasicCegarLoop]: 1116 mSDtfsCounter, 103 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 140 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3180 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:17,072 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 3180 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 515 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 00:30:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2021-11-21 00:30:17,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1802. [2021-11-21 00:30:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1802 states, 1012 states have (on average 1.16699604743083) internal successors, (1181), 1036 states have internal predecessors, (1181), 553 states have call successors, (553), 230 states have call predecessors, (553), 228 states have return successors, (555), 544 states have call predecessors, (555), 551 states have call successors, (555) [2021-11-21 00:30:17,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2289 transitions. [2021-11-21 00:30:17,350 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2289 transitions. Word has length 177 [2021-11-21 00:30:17,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:17,350 INFO L470 AbstractCegarLoop]: Abstraction has 1802 states and 2289 transitions. [2021-11-21 00:30:17,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:30:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2289 transitions. [2021-11-21 00:30:17,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2021-11-21 00:30:17,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:17,354 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:17,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 00:30:17,355 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:30:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:17,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2090989494, now seen corresponding path program 1 times [2021-11-21 00:30:17,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:17,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411776736] [2021-11-21 00:30:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:17,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:17,585 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-21 00:30:17,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:17,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411776736] [2021-11-21 00:30:17,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411776736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:17,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:17,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:30:17,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225635752] [2021-11-21 00:30:17,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:17,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:30:17,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:17,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:30:17,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:17,588 INFO L87 Difference]: Start difference. First operand 1802 states and 2289 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-21 00:30:20,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:22,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:22,650 INFO L93 Difference]: Finished difference Result 2641 states and 3337 transitions. [2021-11-21 00:30:22,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:30:22,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 148 [2021-11-21 00:30:22,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:22,675 INFO L225 Difference]: With dead ends: 2641 [2021-11-21 00:30:22,675 INFO L226 Difference]: Without dead ends: 2479 [2021-11-21 00:30:22,680 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 00:30:22,681 INFO L933 BasicCegarLoop]: 1182 mSDtfsCounter, 792 mSDsluCounter, 2415 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 3278 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:22,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [792 Valid, 3278 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2021-11-21 00:30:22,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2479 states. [2021-11-21 00:30:22,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2479 to 2458. [2021-11-21 00:30:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 1375 states have (on average 1.16) internal successors, (1595), 1402 states have internal predecessors, (1595), 750 states have call successors, (750), 329 states have call predecessors, (750), 324 states have return successors, (771), 736 states have call predecessors, (771), 746 states have call successors, (771) [2021-11-21 00:30:22,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 3116 transitions. [2021-11-21 00:30:22,947 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 3116 transitions. Word has length 148 [2021-11-21 00:30:22,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:22,948 INFO L470 AbstractCegarLoop]: Abstraction has 2458 states and 3116 transitions. [2021-11-21 00:30:22,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-21 00:30:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 3116 transitions. [2021-11-21 00:30:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2021-11-21 00:30:22,951 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:22,952 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:22,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 00:30:22,952 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:30:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:22,953 INFO L85 PathProgramCache]: Analyzing trace with hash -1696547477, now seen corresponding path program 1 times [2021-11-21 00:30:22,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:22,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248022140] [2021-11-21 00:30:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:22,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-21 00:30:23,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:23,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248022140] [2021-11-21 00:30:23,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248022140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:30:23,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:30:23,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:30:23,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008386470] [2021-11-21 00:30:23,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:30:23,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:30:23,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:30:23,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:30:23,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:23,255 INFO L87 Difference]: Start difference. First operand 2458 states and 3116 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 00:30:26,335 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 00:30:27,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:30:29,999 WARN L515 Checker$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 00:30:30,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:30:30,954 INFO L93 Difference]: Finished difference Result 4844 states and 6137 transitions. [2021-11-21 00:30:30,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:30:30,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 194 [2021-11-21 00:30:30,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:30:30,965 INFO L225 Difference]: With dead ends: 4844 [2021-11-21 00:30:30,966 INFO L226 Difference]: Without dead ends: 2461 [2021-11-21 00:30:30,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:30:30,977 INFO L933 BasicCegarLoop]: 981 mSDtfsCounter, 1 mSDsluCounter, 2292 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2940 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:30:30,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2940 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 510 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2021-11-21 00:30:30,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2461 states. [2021-11-21 00:30:31,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2461 to 2460. [2021-11-21 00:30:31,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2460 states, 1377 states have (on average 1.1597676107480028) internal successors, (1597), 1404 states have internal predecessors, (1597), 750 states have call successors, (750), 329 states have call predecessors, (750), 324 states have return successors, (771), 736 states have call predecessors, (771), 746 states have call successors, (771) [2021-11-21 00:30:31,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2460 states to 2460 states and 3118 transitions. [2021-11-21 00:30:31,205 INFO L78 Accepts]: Start accepts. Automaton has 2460 states and 3118 transitions. Word has length 194 [2021-11-21 00:30:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:30:31,206 INFO L470 AbstractCegarLoop]: Abstraction has 2460 states and 3118 transitions. [2021-11-21 00:30:31,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-21 00:30:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 2460 states and 3118 transitions. [2021-11-21 00:30:31,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-21 00:30:31,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:30:31,210 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 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] [2021-11-21 00:30:31,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 00:30:31,210 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_alloc_irq_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_alloc_usb_lock_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-21 00:30:31,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:30:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash 123659729, now seen corresponding path program 1 times [2021-11-21 00:30:31,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:30:31,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744027217] [2021-11-21 00:30:31,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:31,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:30:31,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-21 00:30:31,538 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:30:31,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744027217] [2021-11-21 00:30:31,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744027217] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:30:31,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139505176] [2021-11-21 00:30:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:30:31,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:30:31,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:30:31,547 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:30:31,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9dd15d1-8b37-4a8e-905d-6df5d404789e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:30:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:30:32,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 4254 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:30:32,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:30:33,103 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2021-11-21 00:30:33,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:30:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2021-11-21 00:30:33,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139505176] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:30:33,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193680740] [2021-11-21 00:30:33,600 INFO L159 IcfgInterpreter]: Started Sifa with 95 locations of interest [2021-11-21 00:30:33,600 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:30:33,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:30:33,613 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:30:33,613 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:30:42,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:30:59,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:31:02,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:31:18,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:31:28,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:31:34,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:31:58,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:32:08,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:32:16,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:32:24,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:32:42,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:32:47,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-21 00:33:00,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 630 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181