./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--ethernet--icplus--ipg.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs --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 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:20:06,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:20:06,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:20:06,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:20:06,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:20:06,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:20:06,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:20:06,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:20:06,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:20:06,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:20:06,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:20:06,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:20:06,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:20:06,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:20:06,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:20:06,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:20:06,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:20:06,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:20:06,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:20:06,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:20:06,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:20:06,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:20:06,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:20:06,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:20:06,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:20:06,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:20:06,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:20:06,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:20:06,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:20:06,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:20:06,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:20:06,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:20:06,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:20:06,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:20:06,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:20:06,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:20:06,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:20:06,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:20:06,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:20:06,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:20:06,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:20:06,569 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:20:06,616 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:20:06,616 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:20:06,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:20:06,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:20:06,617 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:20:06,618 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:20:06,618 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:20:06,618 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:20:06,618 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:20:06,619 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:20:06,619 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:20:06,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:20:06,619 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:20:06,620 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:20:06,620 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:20:06,620 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:20:06,621 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:20:06,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:20:06,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:20:06,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:20:06,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:20:06,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:20:06,623 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:20:06,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:20:06,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:20:06,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:20:06,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:20:06,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:20:06,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:20:06,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:20:06,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:20:06,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:20:06,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:20:06,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:20:06,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:20:06,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:20:06,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:20:06,626 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 [2021-11-19 14:20:06,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:20:06,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:20:06,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:20:06,886 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:20:06,887 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:20:06,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2021-11-19 14:20:06,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ccf2af2bd/4c783c4751224d13a3d72aa02141ebb0/FLAGdaab9fd15 [2021-11-19 14:20:07,965 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:20:07,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2021-11-19 14:20:08,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ccf2af2bd/4c783c4751224d13a3d72aa02141ebb0/FLAGdaab9fd15 [2021-11-19 14:20:08,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ccf2af2bd/4c783c4751224d13a3d72aa02141ebb0 [2021-11-19 14:20:08,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:20:08,327 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:20:08,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:20:08,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:20:08,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:20:08,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:20:08" (1/1) ... [2021-11-19 14:20:08,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bbb134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:08, skipping insertion in model container [2021-11-19 14:20:08,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:20:08" (1/1) ... [2021-11-19 14:20:08,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:20:08,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:20:10,517 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:20:10,518 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:20:10,709 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:20:12,728 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2021-11-19 14:20:12,731 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2021-11-19 14:20:12,731 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2021-11-19 14:20:12,732 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2021-11-19 14:20:12,732 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2021-11-19 14:20:12,733 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2021-11-19 14:20:12,733 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2021-11-19 14:20:12,734 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2021-11-19 14:20:12,734 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2021-11-19 14:20:12,735 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2021-11-19 14:20:12,736 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2021-11-19 14:20:12,736 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2021-11-19 14:20:12,737 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2021-11-19 14:20:12,737 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2021-11-19 14:20:12,738 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2021-11-19 14:20:12,738 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2021-11-19 14:20:12,739 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2021-11-19 14:20:12,739 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2021-11-19 14:20:12,740 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2021-11-19 14:20:12,740 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2021-11-19 14:20:12,741 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2021-11-19 14:20:12,741 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2021-11-19 14:20:12,742 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2021-11-19 14:20:12,742 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2021-11-19 14:20:12,743 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2021-11-19 14:20:12,743 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2021-11-19 14:20:12,744 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2021-11-19 14:20:12,744 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2021-11-19 14:20:12,745 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2021-11-19 14:20:12,745 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2021-11-19 14:20:12,745 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2021-11-19 14:20:12,746 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2021-11-19 14:20:12,747 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2021-11-19 14:20:12,747 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2021-11-19 14:20:12,748 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2021-11-19 14:20:12,748 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2021-11-19 14:20:12,749 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2021-11-19 14:20:12,749 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2021-11-19 14:20:12,750 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2021-11-19 14:20:12,750 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2021-11-19 14:20:12,751 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2021-11-19 14:20:12,751 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2021-11-19 14:20:12,752 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2021-11-19 14:20:12,752 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2021-11-19 14:20:12,753 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2021-11-19 14:20:12,753 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2021-11-19 14:20:12,754 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2021-11-19 14:20:12,754 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2021-11-19 14:20:12,755 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2021-11-19 14:20:12,755 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2021-11-19 14:20:12,756 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2021-11-19 14:20:12,756 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2021-11-19 14:20:12,757 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2021-11-19 14:20:12,757 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2021-11-19 14:20:12,758 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2021-11-19 14:20:12,758 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2021-11-19 14:20:12,759 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2021-11-19 14:20:12,759 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2021-11-19 14:20:12,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2021-11-19 14:20:12,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2021-11-19 14:20:12,761 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2021-11-19 14:20:12,761 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2021-11-19 14:20:12,762 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2021-11-19 14:20:12,762 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2021-11-19 14:20:12,763 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2021-11-19 14:20:12,763 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2021-11-19 14:20:12,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2021-11-19 14:20:12,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2021-11-19 14:20:12,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2021-11-19 14:20:12,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2021-11-19 14:20:12,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2021-11-19 14:20:12,766 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2021-11-19 14:20:12,766 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2021-11-19 14:20:12,767 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2021-11-19 14:20:12,767 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2021-11-19 14:20:12,768 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2021-11-19 14:20:12,768 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2021-11-19 14:20:12,769 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2021-11-19 14:20:12,769 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2021-11-19 14:20:12,770 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2021-11-19 14:20:12,770 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2021-11-19 14:20:12,771 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2021-11-19 14:20:12,771 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2021-11-19 14:20:12,772 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2021-11-19 14:20:12,772 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2021-11-19 14:20:12,773 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2021-11-19 14:20:12,773 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2021-11-19 14:20:12,774 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2021-11-19 14:20:12,802 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:20:12,837 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:20:12,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cfb0337 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:12, skipping insertion in model container [2021-11-19 14:20:12,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:20:12,838 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:20:12,840 INFO L158 Benchmark]: Toolchain (without parser) took 4512.17ms. Allocated memory was 115.3MB in the beginning and 230.7MB in the end (delta: 115.3MB). Free memory was 84.1MB in the beginning and 139.1MB in the end (delta: -55.0MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-19 14:20:12,841 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 48.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:20:12,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4507.37ms. Allocated memory was 115.3MB in the beginning and 230.7MB in the end (delta: 115.3MB). Free memory was 84.1MB in the beginning and 139.1MB in the end (delta: -55.0MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2021-11-19 14:20:12,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 48.5MB in the beginning and 48.5MB in the end (delta: 46.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4507.37ms. Allocated memory was 115.3MB in the beginning and 230.7MB in the end (delta: 115.3MB). Free memory was 84.1MB in the beginning and 139.1MB in the end (delta: -55.0MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 6990]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs --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 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:20:15,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:20:15,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:20:15,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:20:15,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:20:15,107 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:20:15,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:20:15,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:20:15,116 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:20:15,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:20:15,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:20:15,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:20:15,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:20:15,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:20:15,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:20:15,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:20:15,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:20:15,142 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:20:15,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:20:15,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:20:15,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:20:15,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:20:15,154 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:20:15,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:20:15,165 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:20:15,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:20:15,166 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:20:15,167 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:20:15,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:20:15,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:20:15,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:20:15,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:20:15,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:20:15,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:20:15,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:20:15,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:20:15,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:20:15,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:20:15,176 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:20:15,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:20:15,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:20:15,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:20:15,225 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:20:15,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:20:15,227 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:20:15,227 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:20:15,227 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:20:15,227 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:20:15,227 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:20:15,228 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:20:15,228 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:20:15,228 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:20:15,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:20:15,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:20:15,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:20:15,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:20:15,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:20:15,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:20:15,232 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:20:15,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:20:15,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:20:15,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:20:15,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:20:15,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:20:15,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:20:15,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:20:15,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:20:15,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:20:15,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:20:15,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:20:15,234 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:20:15,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:20:15,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:20:15,235 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:20:15,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:20:15,235 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53e062e1035ae1f01c2e809595599fa2661e1ae14b245da0f28d018a9f398780 [2021-11-19 14:20:15,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:20:15,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:20:15,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:20:15,634 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:20:15,635 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:20:15,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2021-11-19 14:20:15,719 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ce8c8ac1a/1a5c5d5aa43d4244afca744cf090b75a/FLAGaad0a0e6e [2021-11-19 14:20:16,851 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:20:16,852 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2021-11-19 14:20:16,912 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ce8c8ac1a/1a5c5d5aa43d4244afca744cf090b75a/FLAGaad0a0e6e [2021-11-19 14:20:17,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/data/ce8c8ac1a/1a5c5d5aa43d4244afca744cf090b75a [2021-11-19 14:20:17,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:20:17,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:20:17,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:20:17,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:20:17,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:20:17,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:20:17" (1/1) ... [2021-11-19 14:20:17,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7f05c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:17, skipping insertion in model container [2021-11-19 14:20:17,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:20:17" (1/1) ... [2021-11-19 14:20:17,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:20:17,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:20:21,555 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2021-11-19 14:20:21,562 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2021-11-19 14:20:21,563 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2021-11-19 14:20:21,564 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2021-11-19 14:20:21,565 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2021-11-19 14:20:21,566 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2021-11-19 14:20:21,571 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2021-11-19 14:20:21,572 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2021-11-19 14:20:21,573 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2021-11-19 14:20:21,574 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2021-11-19 14:20:21,576 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2021-11-19 14:20:21,577 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2021-11-19 14:20:21,578 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2021-11-19 14:20:21,579 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2021-11-19 14:20:21,579 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2021-11-19 14:20:21,580 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2021-11-19 14:20:21,581 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2021-11-19 14:20:21,587 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2021-11-19 14:20:21,589 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2021-11-19 14:20:21,590 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2021-11-19 14:20:21,590 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2021-11-19 14:20:21,591 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2021-11-19 14:20:21,592 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2021-11-19 14:20:21,594 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2021-11-19 14:20:21,595 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2021-11-19 14:20:21,595 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2021-11-19 14:20:21,597 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2021-11-19 14:20:21,598 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2021-11-19 14:20:21,599 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2021-11-19 14:20:21,600 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2021-11-19 14:20:21,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2021-11-19 14:20:21,601 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2021-11-19 14:20:21,603 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2021-11-19 14:20:21,603 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2021-11-19 14:20:21,604 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2021-11-19 14:20:21,605 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2021-11-19 14:20:21,606 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2021-11-19 14:20:21,606 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2021-11-19 14:20:21,606 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2021-11-19 14:20:21,607 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2021-11-19 14:20:21,608 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2021-11-19 14:20:21,608 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2021-11-19 14:20:21,609 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2021-11-19 14:20:21,609 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2021-11-19 14:20:21,610 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2021-11-19 14:20:21,611 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2021-11-19 14:20:21,611 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2021-11-19 14:20:21,613 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2021-11-19 14:20:21,614 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2021-11-19 14:20:21,614 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2021-11-19 14:20:21,615 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2021-11-19 14:20:21,615 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2021-11-19 14:20:21,616 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2021-11-19 14:20:21,616 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2021-11-19 14:20:21,617 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2021-11-19 14:20:21,617 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2021-11-19 14:20:21,618 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2021-11-19 14:20:21,618 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2021-11-19 14:20:21,619 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2021-11-19 14:20:21,619 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2021-11-19 14:20:21,619 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2021-11-19 14:20:21,620 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2021-11-19 14:20:21,621 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2021-11-19 14:20:21,622 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2021-11-19 14:20:21,623 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2021-11-19 14:20:21,624 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2021-11-19 14:20:21,624 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2021-11-19 14:20:21,625 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2021-11-19 14:20:21,625 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2021-11-19 14:20:21,637 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2021-11-19 14:20:21,638 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2021-11-19 14:20:21,638 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2021-11-19 14:20:21,639 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2021-11-19 14:20:21,639 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2021-11-19 14:20:21,640 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2021-11-19 14:20:21,640 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2021-11-19 14:20:21,641 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2021-11-19 14:20:21,642 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2021-11-19 14:20:21,642 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2021-11-19 14:20:21,643 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2021-11-19 14:20:21,644 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2021-11-19 14:20:21,644 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2021-11-19 14:20:21,647 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2021-11-19 14:20:21,647 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2021-11-19 14:20:21,648 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2021-11-19 14:20:21,648 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2021-11-19 14:20:21,649 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2021-11-19 14:20:21,649 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2021-11-19 14:20:21,694 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:20:21,773 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:20:21,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:20:22,310 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2021-11-19 14:20:22,310 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2021-11-19 14:20:22,311 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2021-11-19 14:20:22,311 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2021-11-19 14:20:22,312 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2021-11-19 14:20:22,312 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2021-11-19 14:20:22,313 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2021-11-19 14:20:22,313 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2021-11-19 14:20:22,313 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2021-11-19 14:20:22,314 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2021-11-19 14:20:22,314 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2021-11-19 14:20:22,315 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2021-11-19 14:20:22,315 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2021-11-19 14:20:22,315 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2021-11-19 14:20:22,316 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2021-11-19 14:20:22,316 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2021-11-19 14:20:22,317 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2021-11-19 14:20:22,317 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2021-11-19 14:20:22,317 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2021-11-19 14:20:22,318 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2021-11-19 14:20:22,318 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2021-11-19 14:20:22,319 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2021-11-19 14:20:22,319 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2021-11-19 14:20:22,319 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2021-11-19 14:20:22,320 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2021-11-19 14:20:22,320 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2021-11-19 14:20:22,321 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2021-11-19 14:20:22,321 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2021-11-19 14:20:22,321 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2021-11-19 14:20:22,322 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2021-11-19 14:20:22,322 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2021-11-19 14:20:22,323 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2021-11-19 14:20:22,323 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2021-11-19 14:20:22,323 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2021-11-19 14:20:22,324 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2021-11-19 14:20:22,324 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2021-11-19 14:20:22,325 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2021-11-19 14:20:22,325 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2021-11-19 14:20:22,326 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2021-11-19 14:20:22,326 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2021-11-19 14:20:22,326 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2021-11-19 14:20:22,327 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2021-11-19 14:20:22,327 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2021-11-19 14:20:22,328 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2021-11-19 14:20:22,328 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2021-11-19 14:20:22,328 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2021-11-19 14:20:22,329 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2021-11-19 14:20:22,329 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2021-11-19 14:20:22,330 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2021-11-19 14:20:22,330 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2021-11-19 14:20:22,331 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2021-11-19 14:20:22,331 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2021-11-19 14:20:22,331 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2021-11-19 14:20:22,332 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2021-11-19 14:20:22,332 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2021-11-19 14:20:22,333 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2021-11-19 14:20:22,333 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2021-11-19 14:20:22,333 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2021-11-19 14:20:22,334 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2021-11-19 14:20:22,334 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2021-11-19 14:20:22,335 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2021-11-19 14:20:22,335 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2021-11-19 14:20:22,335 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2021-11-19 14:20:22,336 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2021-11-19 14:20:22,336 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2021-11-19 14:20:22,337 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2021-11-19 14:20:22,337 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2021-11-19 14:20:22,337 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2021-11-19 14:20:22,338 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2021-11-19 14:20:22,338 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2021-11-19 14:20:22,339 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2021-11-19 14:20:22,339 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2021-11-19 14:20:22,340 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2021-11-19 14:20:22,340 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2021-11-19 14:20:22,340 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2021-11-19 14:20:22,341 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2021-11-19 14:20:22,341 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2021-11-19 14:20:22,341 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2021-11-19 14:20:22,342 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2021-11-19 14:20:22,342 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2021-11-19 14:20:22,343 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2021-11-19 14:20:22,343 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2021-11-19 14:20:22,344 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2021-11-19 14:20:22,344 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2021-11-19 14:20:22,344 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2021-11-19 14:20:22,345 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2021-11-19 14:20:22,345 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2021-11-19 14:20:22,346 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2021-11-19 14:20:22,351 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:20:22,368 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:20:22,774 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393566,393579] [2021-11-19 14:20:22,774 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393711,393724] [2021-11-19 14:20:22,775 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[393857,393870] [2021-11-19 14:20:22,775 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394022,394035] [2021-11-19 14:20:22,776 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394180,394193] [2021-11-19 14:20:22,776 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394338,394351] [2021-11-19 14:20:22,777 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394496,394509] [2021-11-19 14:20:22,777 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394656,394669] [2021-11-19 14:20:22,777 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394815,394828] [2021-11-19 14:20:22,778 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[394954,394967] [2021-11-19 14:20:22,778 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395096,395109] [2021-11-19 14:20:22,779 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395245,395258] [2021-11-19 14:20:22,779 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395384,395397] [2021-11-19 14:20:22,780 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395539,395552] [2021-11-19 14:20:22,780 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395699,395712] [2021-11-19 14:20:22,780 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[395850,395863] [2021-11-19 14:20:22,781 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396001,396014] [2021-11-19 14:20:22,781 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396153,396166] [2021-11-19 14:20:22,782 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396302,396315] [2021-11-19 14:20:22,782 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396450,396463] [2021-11-19 14:20:22,782 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396607,396620] [2021-11-19 14:20:22,783 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396756,396769] [2021-11-19 14:20:22,783 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[396912,396925] [2021-11-19 14:20:22,784 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397065,397078] [2021-11-19 14:20:22,784 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397211,397224] [2021-11-19 14:20:22,785 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397354,397367] [2021-11-19 14:20:22,785 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397506,397519] [2021-11-19 14:20:22,785 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397652,397665] [2021-11-19 14:20:22,786 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397797,397810] [2021-11-19 14:20:22,786 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[397951,397964] [2021-11-19 14:20:22,787 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398102,398115] [2021-11-19 14:20:22,787 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398257,398270] [2021-11-19 14:20:22,788 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398409,398422] [2021-11-19 14:20:22,788 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398564,398577] [2021-11-19 14:20:22,788 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398728,398741] [2021-11-19 14:20:22,789 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[398884,398897] [2021-11-19 14:20:22,789 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399048,399061] [2021-11-19 14:20:22,790 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399190,399203] [2021-11-19 14:20:22,790 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399348,399361] [2021-11-19 14:20:22,790 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399515,399528] [2021-11-19 14:20:22,791 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399674,399687] [2021-11-19 14:20:22,791 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399833,399846] [2021-11-19 14:20:22,792 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[399982,399995] [2021-11-19 14:20:22,792 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400129,400142] [2021-11-19 14:20:22,793 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400268,400281] [2021-11-19 14:20:22,793 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400431,400444] [2021-11-19 14:20:22,793 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400597,400610] [2021-11-19 14:20:22,794 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400761,400774] [2021-11-19 14:20:22,794 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[400926,400939] [2021-11-19 14:20:22,795 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401091,401104] [2021-11-19 14:20:22,795 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401257,401270] [2021-11-19 14:20:22,796 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401422,401435] [2021-11-19 14:20:22,796 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401589,401602] [2021-11-19 14:20:22,796 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401749,401762] [2021-11-19 14:20:22,797 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[401911,401924] [2021-11-19 14:20:22,797 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402070,402083] [2021-11-19 14:20:22,798 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402216,402229] [2021-11-19 14:20:22,798 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402359,402372] [2021-11-19 14:20:22,798 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402503,402516] [2021-11-19 14:20:22,799 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402646,402659] [2021-11-19 14:20:22,799 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402790,402803] [2021-11-19 14:20:22,800 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[402931,402944] [2021-11-19 14:20:22,800 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403069,403082] [2021-11-19 14:20:22,800 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403227,403240] [2021-11-19 14:20:22,801 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403386,403399] [2021-11-19 14:20:22,801 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403542,403555] [2021-11-19 14:20:22,802 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403691,403704] [2021-11-19 14:20:22,802 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403843,403856] [2021-11-19 14:20:22,802 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[403994,404007] [2021-11-19 14:20:22,803 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404143,404156] [2021-11-19 14:20:22,803 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404295,404308] [2021-11-19 14:20:22,804 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404443,404456] [2021-11-19 14:20:22,804 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404596,404609] [2021-11-19 14:20:22,805 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404747,404760] [2021-11-19 14:20:22,805 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[404897,404910] [2021-11-19 14:20:22,805 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405044,405057] [2021-11-19 14:20:22,806 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405195,405208] [2021-11-19 14:20:22,806 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405346,405359] [2021-11-19 14:20:22,807 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405494,405507] [2021-11-19 14:20:22,807 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405660,405673] [2021-11-19 14:20:22,808 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405829,405842] [2021-11-19 14:20:22,808 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[405996,406009] [2021-11-19 14:20:22,808 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406164,406177] [2021-11-19 14:20:22,809 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406314,406327] [2021-11-19 14:20:22,809 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406461,406474] [2021-11-19 14:20:22,810 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406622,406635] [2021-11-19 14:20:22,810 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406792,406805] [2021-11-19 14:20:22,811 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_1a713348-05af-4b4e-b109-4d2f3dee9a6f/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i[406954,406967] [2021-11-19 14:20:22,816 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:20:23,197 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:20:23,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23 WrapperNode [2021-11-19 14:20:23,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:20:23,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:20:23,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:20:23,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:20:23,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,550 INFO L137 Inliner]: procedures = 670, calls = 1959, calls flagged for inlining = 296, calls inlined = 213, statements flattened = 4012 [2021-11-19 14:20:23,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:20:23,590 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:20:23,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:20:23,591 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:20:23,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,770 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:20:23,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:20:23,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:20:23,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:20:23,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (1/1) ... [2021-11-19 14:20:23,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:20:23,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:20:23,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:20:23,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:20:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:20:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-19 14:20:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-19 14:20:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-19 14:20:23,898 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-19 14:20:23,898 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-19 14:20:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-19 14:20:23,899 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-19 14:20:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:20:23,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:20:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-11-19 14:20:23,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_mii_mutex_of_ipg_nic_private [2021-11-19 14:20:23,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:20:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-19 14:20:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-19 14:20:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-19 14:20:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2021-11-19 14:20:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2021-11-19 14:20:23,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:20:23,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-19 14:20:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-19 14:20:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-19 14:20:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-19 14:20:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-19 14:20:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2021-11-19 14:20:23,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2021-11-19 14:20:23,901 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2021-11-19 14:20:23,902 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2021-11-19 14:20:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:20:23,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-19 14:20:23,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:20:23,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-19 14:20:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-19 14:20:23,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-19 14:20:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-19 14:20:23,903 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-19 14:20:23,903 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2021-11-19 14:20:23,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2021-11-19 14:20:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:20:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~C_INT~structend~~TO~C_INT [2021-11-19 14:20:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2021-11-19 14:20:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2021-11-19 14:20:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:20:23,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-19 14:20:23,904 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-19 14:20:23,905 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-19 14:20:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2021-11-19 14:20:23,905 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2021-11-19 14:20:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-19 14:20:23,905 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-19 14:20:23,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:20:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:20:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:20:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-19 14:20:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-19 14:20:23,906 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-19 14:20:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:20:23,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:20:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:20:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:20:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:20:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2021-11-19 14:20:23,907 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2021-11-19 14:20:23,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:20:23,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-19 14:20:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2021-11-19 14:20:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2021-11-19 14:20:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-19 14:20:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-19 14:20:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-19 14:20:23,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-19 14:20:23,908 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2021-11-19 14:20:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2021-11-19 14:20:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-19 14:20:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-19 14:20:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-19 14:20:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-19 14:20:23,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:20:23,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-19 14:20:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:20:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-19 14:20:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-19 14:20:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-19 14:20:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:20:23,910 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:20:23,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:20:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-19 14:20:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-19 14:20:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-19 14:20:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-19 14:20:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-19 14:20:23,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-19 14:20:23,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-19 14:20:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-19 14:20:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-19 14:20:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-19 14:20:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-19 14:20:23,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:20:23,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-19 14:20:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-19 14:20:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-19 14:20:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:20:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-19 14:20:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2021-11-19 14:20:23,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2021-11-19 14:20:23,913 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2021-11-19 14:20:23,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2021-11-19 14:20:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:20:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2021-11-19 14:20:23,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_unlock_lock_of_ipg_nic_private [2021-11-19 14:20:23,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:20:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-19 14:20:23,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-19 14:20:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-19 14:20:23,918 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-19 14:20:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:20:23,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:20:23,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:20:23,921 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2021-11-19 14:20:23,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2021-11-19 14:20:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:20:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:20:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:20:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2021-11-19 14:20:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2021-11-19 14:20:23,922 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-19 14:20:23,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-19 14:20:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-19 14:20:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-19 14:20:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-19 14:20:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-19 14:20:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:20:23,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-19 14:20:23,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-19 14:20:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-19 14:20:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2021-11-19 14:20:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2021-11-19 14:20:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2021-11-19 14:20:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2021-11-19 14:20:23,924 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-19 14:20:23,924 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-19 14:20:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-19 14:20:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-19 14:20:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:20:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2021-11-19 14:20:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2021-11-19 14:20:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-19 14:20:23,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-19 14:20:23,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:20:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:20:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2021-11-19 14:20:23,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2021-11-19 14:20:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:20:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:20:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:20:23,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:20:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:20:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:20:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:20:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:20:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2021-11-19 14:20:23,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2021-11-19 14:20:23,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:20:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-19 14:20:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-19 14:20:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-19 14:20:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-19 14:20:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-19 14:20:23,928 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-19 14:20:23,928 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-19 14:20:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:20:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-19 14:20:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2021-11-19 14:20:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2021-11-19 14:20:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:20:23,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-19 14:20:23,929 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2021-11-19 14:20:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2021-11-19 14:20:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:20:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:20:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-19 14:20:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-19 14:20:23,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-19 14:20:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:20:23,930 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2021-11-19 14:20:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2021-11-19 14:20:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:20:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2021-11-19 14:20:23,931 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2021-11-19 14:20:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:20:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:20:23,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:20:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:20:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:20:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-19 14:20:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-19 14:20:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-19 14:20:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-19 14:20:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-19 14:20:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-19 14:20:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-19 14:20:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-11-19 14:20:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-11-19 14:20:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2021-11-19 14:20:23,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2021-11-19 14:20:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2021-11-19 14:20:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2021-11-19 14:20:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:20:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-19 14:20:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-19 14:20:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-19 14:20:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:20:23,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-19 14:20:23,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:20:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-19 14:20:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-19 14:20:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-19 14:20:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:20:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:20:23,935 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:20:23,935 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:20:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:20:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-19 14:20:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:20:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-19 14:20:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:20:23,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-19 14:20:23,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:20:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:20:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:20:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:20:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2021-11-19 14:20:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2021-11-19 14:20:23,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:20:23,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:20:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2021-11-19 14:20:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2021-11-19 14:20:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:20:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-19 14:20:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2021-11-19 14:20:23,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2021-11-19 14:20:23,938 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2021-11-19 14:20:23,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2021-11-19 14:20:23,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-19 14:20:23,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-19 14:20:23,940 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2021-11-19 14:20:23,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2021-11-19 14:20:23,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2021-11-19 14:20:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_ipg_nic_private [2021-11-19 14:20:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2021-11-19 14:20:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_mii_mutex_of_ipg_nic_private [2021-11-19 14:20:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:20:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-19 14:20:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-19 14:20:23,941 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-19 14:20:23,941 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-19 14:20:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-19 14:20:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-19 14:20:23,942 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2021-11-19 14:20:23,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2021-11-19 14:20:24,832 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:20:24,835 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:20:35,107 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:21:06,171 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:21:06,190 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:21:06,191 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:21:06,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:06 BoogieIcfgContainer [2021-11-19 14:21:06,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:21:06,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:21:06,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:21:06,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:21:06,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:20:17" (1/3) ... [2021-11-19 14:21:06,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7d7107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:06, skipping insertion in model container [2021-11-19 14:21:06,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:20:23" (2/3) ... [2021-11-19 14:21:06,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f7d7107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:21:06, skipping insertion in model container [2021-11-19 14:21:06,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:21:06" (3/3) ... [2021-11-19 14:21:06,203 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--icplus--ipg.ko.cil.i [2021-11-19 14:21:06,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:21:06,209 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 29 error locations. [2021-11-19 14:21:06,265 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:21:06,271 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 [2021-11-19 14:21:06,271 INFO L340 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2021-11-19 14:21:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 1734 states, 1136 states have (on average 1.25) internal successors, (1420), 1205 states have internal predecessors, (1420), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) [2021-11-19 14:21:06,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-19 14:21:06,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:06,334 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:06,335 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:06,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:06,340 INFO L85 PathProgramCache]: Analyzing trace with hash -93121304, now seen corresponding path program 1 times [2021-11-19 14:21:06,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:06,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634456132] [2021-11-19 14:21:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:06,355 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:06,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:06,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:21:07,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:07,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:07,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:08,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:09,160 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:09,161 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:09,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634456132] [2021-11-19 14:21:09,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634456132] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:09,162 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:09,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:09,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822259860] [2021-11-19 14:21:09,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:09,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:09,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:09,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:09,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:09,203 INFO L87 Difference]: Start difference. First operand has 1734 states, 1136 states have (on average 1.25) internal successors, (1420), 1205 states have internal predecessors, (1420), 457 states have call successors, (457), 114 states have call predecessors, (457), 113 states have return successors, (453), 450 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:21:09,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:09,519 INFO L93 Difference]: Finished difference Result 3429 states and 4724 transitions. [2021-11-19 14:21:09,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:09,522 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 64 [2021-11-19 14:21:09,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:09,562 INFO L225 Difference]: With dead ends: 3429 [2021-11-19 14:21:09,562 INFO L226 Difference]: Without dead ends: 1710 [2021-11-19 14:21:09,582 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:09,587 INFO L933 BasicCegarLoop]: 2278 mSDtfsCounter, 2234 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 4554 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:09,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2236 Valid, 4554 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:09,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2021-11-19 14:21:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 1710. [2021-11-19 14:21:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1710 states, 1119 states have (on average 1.2189454870420018) internal successors, (1364), 1184 states have internal predecessors, (1364), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2021-11-19 14:21:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1710 states to 1710 states and 2264 transitions. [2021-11-19 14:21:09,838 INFO L78 Accepts]: Start accepts. Automaton has 1710 states and 2264 transitions. Word has length 64 [2021-11-19 14:21:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:09,840 INFO L470 AbstractCegarLoop]: Abstraction has 1710 states and 2264 transitions. [2021-11-19 14:21:09,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-19 14:21:09,841 INFO L276 IsEmpty]: Start isEmpty. Operand 1710 states and 2264 transitions. [2021-11-19 14:21:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-19 14:21:09,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:09,852 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:09,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:10,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:10,076 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:10,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1410622876, now seen corresponding path program 1 times [2021-11-19 14:21:10,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:10,082 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1349523488] [2021-11-19 14:21:10,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:10,082 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:10,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:10,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:10,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:21:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:11,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:11,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:12,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:12,799 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:12,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1349523488] [2021-11-19 14:21:12,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1349523488] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:12,799 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:12,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:12,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290468812] [2021-11-19 14:21:12,799 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:12,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:12,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:12,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:12,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:12,803 INFO L87 Difference]: Start difference. First operand 1710 states and 2264 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:21:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:13,097 INFO L93 Difference]: Finished difference Result 1710 states and 2264 transitions. [2021-11-19 14:21:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 70 [2021-11-19 14:21:13,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:13,116 INFO L225 Difference]: With dead ends: 1710 [2021-11-19 14:21:13,116 INFO L226 Difference]: Without dead ends: 1708 [2021-11-19 14:21:13,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:13,122 INFO L933 BasicCegarLoop]: 2260 mSDtfsCounter, 2210 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 4518 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:13,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2212 Valid, 4518 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1708 states. [2021-11-19 14:21:13,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1708 to 1708. [2021-11-19 14:21:13,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1708 states, 1118 states have (on average 1.2182468694096602) internal successors, (1362), 1182 states have internal predecessors, (1362), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2021-11-19 14:21:13,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2262 transitions. [2021-11-19 14:21:13,247 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2262 transitions. Word has length 70 [2021-11-19 14:21:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:13,248 INFO L470 AbstractCegarLoop]: Abstraction has 1708 states and 2262 transitions. [2021-11-19 14:21:13,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-19 14:21:13,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2262 transitions. [2021-11-19 14:21:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 14:21:13,250 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:13,250 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:13,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:13,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:13,475 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:13,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1407941109, now seen corresponding path program 1 times [2021-11-19 14:21:13,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:13,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546936357] [2021-11-19 14:21:13,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:13,478 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:13,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:13,479 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:13,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:21:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:14,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:14,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:15,665 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:15,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:16,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:16,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546936357] [2021-11-19 14:21:16,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [546936357] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:16,332 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:16,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:16,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708825139] [2021-11-19 14:21:16,332 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:16,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:16,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:16,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:16,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:16,334 INFO L87 Difference]: Start difference. First operand 1708 states and 2262 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:21:16,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:16,535 INFO L93 Difference]: Finished difference Result 1708 states and 2262 transitions. [2021-11-19 14:21:16,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:16,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 76 [2021-11-19 14:21:16,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:16,551 INFO L225 Difference]: With dead ends: 1708 [2021-11-19 14:21:16,551 INFO L226 Difference]: Without dead ends: 1706 [2021-11-19 14:21:16,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:16,554 INFO L933 BasicCegarLoop]: 2258 mSDtfsCounter, 2202 mSDsluCounter, 2256 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 4514 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:16,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2204 Valid, 4514 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:16,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-19 14:21:16,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1706. [2021-11-19 14:21:16,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1706 states, 1117 states have (on average 1.2175470008952551) internal successors, (1360), 1180 states have internal predecessors, (1360), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2021-11-19 14:21:16,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1706 states to 1706 states and 2260 transitions. [2021-11-19 14:21:16,741 INFO L78 Accepts]: Start accepts. Automaton has 1706 states and 2260 transitions. Word has length 76 [2021-11-19 14:21:16,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:16,742 INFO L470 AbstractCegarLoop]: Abstraction has 1706 states and 2260 transitions. [2021-11-19 14:21:16,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-19 14:21:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1706 states and 2260 transitions. [2021-11-19 14:21:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-19 14:21:16,745 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:16,745 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:16,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-19 14:21:16,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:16,959 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:16,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash -965126579, now seen corresponding path program 1 times [2021-11-19 14:21:16,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:16,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872854568] [2021-11-19 14:21:16,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:16,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:16,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:16,962 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:16,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 14:21:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:17,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:17,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:19,133 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:19,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:19,732 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:19,732 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:19,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872854568] [2021-11-19 14:21:19,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [872854568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:19,732 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:19,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:19,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253548996] [2021-11-19 14:21:19,733 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:19,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:19,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:19,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:19,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:19,734 INFO L87 Difference]: Start difference. First operand 1706 states and 2260 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:21:19,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:19,926 INFO L93 Difference]: Finished difference Result 1706 states and 2260 transitions. [2021-11-19 14:21:19,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:19,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 82 [2021-11-19 14:21:19,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:19,948 INFO L225 Difference]: With dead ends: 1706 [2021-11-19 14:21:19,948 INFO L226 Difference]: Without dead ends: 1704 [2021-11-19 14:21:19,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:19,951 INFO L933 BasicCegarLoop]: 2256 mSDtfsCounter, 2191 mSDsluCounter, 4508 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 6764 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:19,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2193 Valid, 6764 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:19,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2021-11-19 14:21:20,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1704. [2021-11-19 14:21:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1116 states have (on average 1.2168458781362008) internal successors, (1358), 1178 states have internal predecessors, (1358), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2021-11-19 14:21:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2258 transitions. [2021-11-19 14:21:20,091 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2258 transitions. Word has length 82 [2021-11-19 14:21:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:20,091 INFO L470 AbstractCegarLoop]: Abstraction has 1704 states and 2258 transitions. [2021-11-19 14:21:20,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-19 14:21:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2258 transitions. [2021-11-19 14:21:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-19 14:21:20,093 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:20,093 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:20,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:20,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:20,315 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:20,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:20,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1385388700, now seen corresponding path program 1 times [2021-11-19 14:21:20,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:20,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430205249] [2021-11-19 14:21:20,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:20,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:20,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:20,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:20,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:21:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:21,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:21,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:22,513 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:22,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:23,138 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:23,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:23,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430205249] [2021-11-19 14:21:23,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430205249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:23,139 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:23,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:23,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913768032] [2021-11-19 14:21:23,139 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:23,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:23,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:23,141 INFO L87 Difference]: Start difference. First operand 1704 states and 2258 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:21:23,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:23,339 INFO L93 Difference]: Finished difference Result 1704 states and 2258 transitions. [2021-11-19 14:21:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:23,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 88 [2021-11-19 14:21:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:23,354 INFO L225 Difference]: With dead ends: 1704 [2021-11-19 14:21:23,354 INFO L226 Difference]: Without dead ends: 1702 [2021-11-19 14:21:23,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:23,357 INFO L933 BasicCegarLoop]: 2254 mSDtfsCounter, 2183 mSDsluCounter, 4504 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:23,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 6758 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:23,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2021-11-19 14:21:23,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1702. [2021-11-19 14:21:23,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1115 states have (on average 1.2161434977578476) internal successors, (1356), 1176 states have internal predecessors, (1356), 451 states have call successors, (451), 113 states have call predecessors, (451), 112 states have return successors, (449), 446 states have call predecessors, (449), 449 states have call successors, (449) [2021-11-19 14:21:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2256 transitions. [2021-11-19 14:21:23,490 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2256 transitions. Word has length 88 [2021-11-19 14:21:23,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:23,491 INFO L470 AbstractCegarLoop]: Abstraction has 1702 states and 2256 transitions. [2021-11-19 14:21:23,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:21:23,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2256 transitions. [2021-11-19 14:21:23,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-19 14:21:23,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:23,493 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:23,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:23,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:23,710 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:23,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash 737073353, now seen corresponding path program 1 times [2021-11-19 14:21:23,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:23,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39455732] [2021-11-19 14:21:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:23,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:23,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:23,713 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:23,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 14:21:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:24,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:21:24,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:21:25,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-19 14:21:27,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:27,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [39455732] [2021-11-19 14:21:27,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [39455732] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:21:27,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [515575508] [2021-11-19 14:21:27,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:27,258 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:21:27,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:21:27,259 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:21:27,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-19 14:21:28,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:28,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:21:28,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:21:28,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:21:29,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [515575508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:29,137 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:21:29,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:21:29,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124213328] [2021-11-19 14:21:29,138 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:29,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:21:29,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:29,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:21:29,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:29,139 INFO L87 Difference]: Start difference. First operand 1702 states and 2256 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 14:21:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:29,539 INFO L93 Difference]: Finished difference Result 4508 states and 5990 transitions. [2021-11-19 14:21:29,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:29,540 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), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 111 [2021-11-19 14:21:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:29,568 INFO L225 Difference]: With dead ends: 4508 [2021-11-19 14:21:29,569 INFO L226 Difference]: Without dead ends: 2827 [2021-11-19 14:21:29,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:29,581 INFO L933 BasicCegarLoop]: 3234 mSDtfsCounter, 2239 mSDsluCounter, 3011 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2239 SdHoareTripleChecker+Valid, 6245 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:29,581 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2239 Valid, 6245 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:21:29,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2021-11-19 14:21:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2811. [2021-11-19 14:21:29,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 1856 states have (on average 1.2219827586206897) internal successors, (2268), 1943 states have internal predecessors, (2268), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:29,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 3752 transitions. [2021-11-19 14:21:29,854 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 3752 transitions. Word has length 111 [2021-11-19 14:21:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:29,854 INFO L470 AbstractCegarLoop]: Abstraction has 2811 states and 3752 transitions. [2021-11-19 14:21:29,855 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), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-19 14:21:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 3752 transitions. [2021-11-19 14:21:29,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-19 14:21:29,856 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:29,857 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:29,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:30,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:30,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:30,271 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:30,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:30,271 INFO L85 PathProgramCache]: Analyzing trace with hash -357471744, now seen corresponding path program 1 times [2021-11-19 14:21:30,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:30,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [842884386] [2021-11-19 14:21:30,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:30,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:30,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:30,273 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:30,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 14:21:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:31,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 967 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:31,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:32,283 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:32,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:32,884 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:32,885 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:32,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [842884386] [2021-11-19 14:21:32,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [842884386] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:32,885 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:32,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:32,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707341512] [2021-11-19 14:21:32,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:32,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:32,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:32,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:32,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:32,887 INFO L87 Difference]: Start difference. First operand 2811 states and 3752 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:21:33,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:33,121 INFO L93 Difference]: Finished difference Result 2811 states and 3752 transitions. [2021-11-19 14:21:33,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:33,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 94 [2021-11-19 14:21:33,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:33,144 INFO L225 Difference]: With dead ends: 2811 [2021-11-19 14:21:33,144 INFO L226 Difference]: Without dead ends: 2809 [2021-11-19 14:21:33,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:33,148 INFO L933 BasicCegarLoop]: 2252 mSDtfsCounter, 2175 mSDsluCounter, 4500 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 6752 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:33,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2177 Valid, 6752 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:33,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2809 states. [2021-11-19 14:21:33,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809. [2021-11-19 14:21:33,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 1855 states have (on average 1.2215633423180594) internal successors, (2266), 1941 states have internal predecessors, (2266), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:33,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 3750 transitions. [2021-11-19 14:21:33,436 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 3750 transitions. Word has length 94 [2021-11-19 14:21:33,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:33,437 INFO L470 AbstractCegarLoop]: Abstraction has 2809 states and 3750 transitions. [2021-11-19 14:21:33,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-19 14:21:33,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 3750 transitions. [2021-11-19 14:21:33,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-19 14:21:33,441 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:33,442 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:33,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:33,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:33,655 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:33,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:33,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1756813720, now seen corresponding path program 1 times [2021-11-19 14:21:33,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:33,656 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398441094] [2021-11-19 14:21:33,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:33,657 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:33,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:33,657 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:33,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-19 14:21:34,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:34,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:21:34,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:35,839 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 95 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-19 14:21:35,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:37,143 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2021-11-19 14:21:37,143 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:37,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398441094] [2021-11-19 14:21:37,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398441094] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:21:37,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [321205066] [2021-11-19 14:21:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:37,144 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:21:37,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:21:37,145 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:21:37,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-19 14:21:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:38,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:21:38,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:38,578 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-19 14:21:38,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:39,221 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-11-19 14:21:39,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [321205066] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:39,222 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:21:39,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8, 8] total 11 [2021-11-19 14:21:39,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531065090] [2021-11-19 14:21:39,222 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:39,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:21:39,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:39,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:21:39,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:39,223 INFO L87 Difference]: Start difference. First operand 2809 states and 3750 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 14:21:39,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:39,623 INFO L93 Difference]: Finished difference Result 5593 states and 7465 transitions. [2021-11-19 14:21:39,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:21:39,624 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), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2021-11-19 14:21:39,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:39,650 INFO L225 Difference]: With dead ends: 5593 [2021-11-19 14:21:39,650 INFO L226 Difference]: Without dead ends: 2805 [2021-11-19 14:21:39,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:21:39,665 INFO L933 BasicCegarLoop]: 2248 mSDtfsCounter, 2233 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:39,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2233 Valid, 2248 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:21:39,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2021-11-19 14:21:39,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2805. [2021-11-19 14:21:39,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2805 states, 1852 states have (on average 1.220842332613391) internal successors, (2261), 1937 states have internal predecessors, (2261), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:39,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2805 states to 2805 states and 3745 transitions. [2021-11-19 14:21:39,902 INFO L78 Accepts]: Start accepts. Automaton has 2805 states and 3745 transitions. Word has length 117 [2021-11-19 14:21:39,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:39,903 INFO L470 AbstractCegarLoop]: Abstraction has 2805 states and 3745 transitions. [2021-11-19 14:21:39,903 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), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-19 14:21:39,904 INFO L276 IsEmpty]: Start isEmpty. Operand 2805 states and 3745 transitions. [2021-11-19 14:21:39,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-19 14:21:39,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:39,909 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:39,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:40,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:40,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:40,323 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:40,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:40,324 INFO L85 PathProgramCache]: Analyzing trace with hash -963167324, now seen corresponding path program 1 times [2021-11-19 14:21:40,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:40,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386078220] [2021-11-19 14:21:40,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:40,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:40,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:40,325 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:40,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 14:21:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:41,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:41,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:42,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:43,038 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:43,038 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:43,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386078220] [2021-11-19 14:21:43,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386078220] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:43,038 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:43,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:43,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990699279] [2021-11-19 14:21:43,039 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:43,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:43,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:43,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:43,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:43,041 INFO L87 Difference]: Start difference. First operand 2805 states and 3745 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:21:43,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:43,305 INFO L93 Difference]: Finished difference Result 2805 states and 3745 transitions. [2021-11-19 14:21:43,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:43,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 100 [2021-11-19 14:21:43,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:43,327 INFO L225 Difference]: With dead ends: 2805 [2021-11-19 14:21:43,327 INFO L226 Difference]: Without dead ends: 2803 [2021-11-19 14:21:43,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:43,332 INFO L933 BasicCegarLoop]: 2245 mSDtfsCounter, 2162 mSDsluCounter, 4486 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 6731 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:43,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2164 Valid, 6731 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:43,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2021-11-19 14:21:43,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2803. [2021-11-19 14:21:43,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1851 states have (on average 1.220421393841167) internal successors, (2259), 1935 states have internal predecessors, (2259), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3743 transitions. [2021-11-19 14:21:43,557 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3743 transitions. Word has length 100 [2021-11-19 14:21:43,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:43,558 INFO L470 AbstractCegarLoop]: Abstraction has 2803 states and 3743 transitions. [2021-11-19 14:21:43,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-19 14:21:43,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3743 transitions. [2021-11-19 14:21:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-19 14:21:43,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:43,562 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:43,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:43,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:43,789 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:43,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:43,790 INFO L85 PathProgramCache]: Analyzing trace with hash -2047644445, now seen corresponding path program 1 times [2021-11-19 14:21:43,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:43,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169015268] [2021-11-19 14:21:43,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:43,792 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:43,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:43,792 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:43,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-19 14:21:44,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:44,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:44,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:45,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:46,550 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:46,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169015268] [2021-11-19 14:21:46,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1169015268] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:46,550 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:46,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:46,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043075697] [2021-11-19 14:21:46,551 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:46,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:46,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:46,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:46,552 INFO L87 Difference]: Start difference. First operand 2803 states and 3743 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:21:46,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:46,808 INFO L93 Difference]: Finished difference Result 2803 states and 3743 transitions. [2021-11-19 14:21:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:46,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 106 [2021-11-19 14:21:46,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:46,830 INFO L225 Difference]: With dead ends: 2803 [2021-11-19 14:21:46,830 INFO L226 Difference]: Without dead ends: 2801 [2021-11-19 14:21:46,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:46,833 INFO L933 BasicCegarLoop]: 2243 mSDtfsCounter, 2165 mSDsluCounter, 2237 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 4480 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:46,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2167 Valid, 4480 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:46,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2801 states. [2021-11-19 14:21:47,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2801 to 2801. [2021-11-19 14:21:47,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2801 states, 1850 states have (on average 1.22) internal successors, (2257), 1933 states have internal predecessors, (2257), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:47,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2801 states to 2801 states and 3741 transitions. [2021-11-19 14:21:47,101 INFO L78 Accepts]: Start accepts. Automaton has 2801 states and 3741 transitions. Word has length 106 [2021-11-19 14:21:47,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:47,102 INFO L470 AbstractCegarLoop]: Abstraction has 2801 states and 3741 transitions. [2021-11-19 14:21:47,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:21:47,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2801 states and 3741 transitions. [2021-11-19 14:21:47,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:21:47,104 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:47,105 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:47,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:47,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:47,325 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:47,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:47,326 INFO L85 PathProgramCache]: Analyzing trace with hash -691128538, now seen corresponding path program 1 times [2021-11-19 14:21:47,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:47,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817960603] [2021-11-19 14:21:47,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:47,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:47,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:47,328 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:47,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-19 14:21:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:48,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:48,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:49,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:50,262 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:50,262 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:50,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817960603] [2021-11-19 14:21:50,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817960603] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:50,263 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:50,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:50,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881126739] [2021-11-19 14:21:50,264 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:50,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:50,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:50,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:50,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:50,265 INFO L87 Difference]: Start difference. First operand 2801 states and 3741 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:21:50,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:50,613 INFO L93 Difference]: Finished difference Result 2801 states and 3741 transitions. [2021-11-19 14:21:50,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:50,613 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 108 [2021-11-19 14:21:50,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:50,636 INFO L225 Difference]: With dead ends: 2801 [2021-11-19 14:21:50,636 INFO L226 Difference]: Without dead ends: 2799 [2021-11-19 14:21:50,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:50,638 INFO L933 BasicCegarLoop]: 2241 mSDtfsCounter, 2150 mSDsluCounter, 4478 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 6719 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:50,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2152 Valid, 6719 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2021-11-19 14:21:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2799. [2021-11-19 14:21:50,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2799 states, 1849 states have (on average 1.2195781503515413) internal successors, (2255), 1931 states have internal predecessors, (2255), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2799 states to 2799 states and 3739 transitions. [2021-11-19 14:21:50,847 INFO L78 Accepts]: Start accepts. Automaton has 2799 states and 3739 transitions. Word has length 108 [2021-11-19 14:21:50,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:50,848 INFO L470 AbstractCegarLoop]: Abstraction has 2799 states and 3739 transitions. [2021-11-19 14:21:50,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-19 14:21:50,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2799 states and 3739 transitions. [2021-11-19 14:21:50,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-19 14:21:50,850 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:50,851 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:50,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:51,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:51,075 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1073535039, now seen corresponding path program 1 times [2021-11-19 14:21:51,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:51,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451054542] [2021-11-19 14:21:51,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:51,077 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:51,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:51,078 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:51,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-19 14:21:51,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:52,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:52,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:53,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:54,073 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:54,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451054542] [2021-11-19 14:21:54,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [451054542] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:54,074 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:54,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:54,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622333400] [2021-11-19 14:21:54,074 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:54,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:54,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:54,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:54,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:54,076 INFO L87 Difference]: Start difference. First operand 2799 states and 3739 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:21:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:54,380 INFO L93 Difference]: Finished difference Result 2799 states and 3739 transitions. [2021-11-19 14:21:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:54,381 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 114 [2021-11-19 14:21:54,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:54,413 INFO L225 Difference]: With dead ends: 2799 [2021-11-19 14:21:54,420 INFO L226 Difference]: Without dead ends: 2797 [2021-11-19 14:21:54,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:54,424 INFO L933 BasicCegarLoop]: 2239 mSDtfsCounter, 2142 mSDsluCounter, 4474 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2144 SdHoareTripleChecker+Valid, 6713 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:54,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2144 Valid, 6713 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:54,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2021-11-19 14:21:54,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2797. [2021-11-19 14:21:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 1848 states have (on average 1.219155844155844) internal successors, (2253), 1929 states have internal predecessors, (2253), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:54,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 3737 transitions. [2021-11-19 14:21:54,725 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 3737 transitions. Word has length 114 [2021-11-19 14:21:54,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:54,726 INFO L470 AbstractCegarLoop]: Abstraction has 2797 states and 3737 transitions. [2021-11-19 14:21:54,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-19 14:21:54,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 3737 transitions. [2021-11-19 14:21:54,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-19 14:21:54,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:54,729 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:54,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:54,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:54,951 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:54,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:54,951 INFO L85 PathProgramCache]: Analyzing trace with hash -98508847, now seen corresponding path program 1 times [2021-11-19 14:21:54,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:54,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665101164] [2021-11-19 14:21:54,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:54,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:54,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:54,954 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:54,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-19 14:21:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:55,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:55,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:21:57,487 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:57,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:21:58,175 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:21:58,175 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:21:58,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665101164] [2021-11-19 14:21:58,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665101164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:21:58,176 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:21:58,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:21:58,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480512936] [2021-11-19 14:21:58,176 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:21:58,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:21:58,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:21:58,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:21:58,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:21:58,177 INFO L87 Difference]: Start difference. First operand 2797 states and 3737 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:21:58,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:21:58,509 INFO L93 Difference]: Finished difference Result 2797 states and 3737 transitions. [2021-11-19 14:21:58,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:21:58,509 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 120 [2021-11-19 14:21:58,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:21:58,521 INFO L225 Difference]: With dead ends: 2797 [2021-11-19 14:21:58,521 INFO L226 Difference]: Without dead ends: 2795 [2021-11-19 14:21:58,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:21:58,524 INFO L933 BasicCegarLoop]: 2237 mSDtfsCounter, 2134 mSDsluCounter, 4470 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 6707 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:21:58,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2136 Valid, 6707 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:21:58,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2795 states. [2021-11-19 14:21:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2795 to 2795. [2021-11-19 14:21:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2795 states, 1847 states have (on average 1.218733080671359) internal successors, (2251), 1927 states have internal predecessors, (2251), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:21:58,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2795 states to 2795 states and 3735 transitions. [2021-11-19 14:21:58,782 INFO L78 Accepts]: Start accepts. Automaton has 2795 states and 3735 transitions. Word has length 120 [2021-11-19 14:21:58,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:21:58,782 INFO L470 AbstractCegarLoop]: Abstraction has 2795 states and 3735 transitions. [2021-11-19 14:21:58,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-19 14:21:58,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2795 states and 3735 transitions. [2021-11-19 14:21:58,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-19 14:21:58,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:21:58,785 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:21:58,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-19 14:21:59,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:21:59,007 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:21:59,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:21:59,007 INFO L85 PathProgramCache]: Analyzing trace with hash -2023284313, now seen corresponding path program 1 times [2021-11-19 14:21:59,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:21:59,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1479085440] [2021-11-19 14:21:59,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:21:59,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:21:59,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:21:59,009 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:21:59,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-19 14:21:59,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:21:59,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:21:59,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:01,358 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:01,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:02,033 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:02,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:02,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1479085440] [2021-11-19 14:22:02,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1479085440] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:02,033 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:02,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:02,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552486037] [2021-11-19 14:22:02,034 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:02,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:02,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:02,036 INFO L87 Difference]: Start difference. First operand 2795 states and 3735 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:22:02,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:02,330 INFO L93 Difference]: Finished difference Result 2795 states and 3735 transitions. [2021-11-19 14:22:02,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:02,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 126 [2021-11-19 14:22:02,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:02,343 INFO L225 Difference]: With dead ends: 2795 [2021-11-19 14:22:02,343 INFO L226 Difference]: Without dead ends: 2793 [2021-11-19 14:22:02,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:02,346 INFO L933 BasicCegarLoop]: 2235 mSDtfsCounter, 2129 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2131 SdHoareTripleChecker+Valid, 4468 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:02,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2131 Valid, 4468 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:02,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2793 states. [2021-11-19 14:22:02,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2793 to 2793. [2021-11-19 14:22:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 1846 states have (on average 1.2183098591549295) internal successors, (2249), 1925 states have internal predecessors, (2249), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 3733 transitions. [2021-11-19 14:22:02,640 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 3733 transitions. Word has length 126 [2021-11-19 14:22:02,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:02,641 INFO L470 AbstractCegarLoop]: Abstraction has 2793 states and 3733 transitions. [2021-11-19 14:22:02,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 5 states have internal predecessors, (132), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-19 14:22:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 3733 transitions. [2021-11-19 14:22:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-19 14:22:02,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:02,644 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:02,678 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:02,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:02,859 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:02,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:02,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1040437043, now seen corresponding path program 1 times [2021-11-19 14:22:02,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:02,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [447777621] [2021-11-19 14:22:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:02,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:02,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:02,862 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:02,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-19 14:22:03,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:03,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:03,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:05,554 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:05,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:06,252 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:06,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [447777621] [2021-11-19 14:22:06,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [447777621] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:06,252 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:06,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:06,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546659062] [2021-11-19 14:22:06,253 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:06,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:06,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:06,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:06,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:06,254 INFO L87 Difference]: Start difference. First operand 2793 states and 3733 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:22:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:06,593 INFO L93 Difference]: Finished difference Result 2793 states and 3733 transitions. [2021-11-19 14:22:06,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:06,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 132 [2021-11-19 14:22:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:06,605 INFO L225 Difference]: With dead ends: 2793 [2021-11-19 14:22:06,605 INFO L226 Difference]: Without dead ends: 2791 [2021-11-19 14:22:06,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:06,608 INFO L933 BasicCegarLoop]: 2233 mSDtfsCounter, 2121 mSDsluCounter, 2231 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2123 SdHoareTripleChecker+Valid, 4464 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:06,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2123 Valid, 4464 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:06,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2021-11-19 14:22:06,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2791. [2021-11-19 14:22:06,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 1845 states have (on average 1.2178861788617885) internal successors, (2247), 1923 states have internal predecessors, (2247), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:06,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3731 transitions. [2021-11-19 14:22:06,921 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3731 transitions. Word has length 132 [2021-11-19 14:22:06,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:06,922 INFO L470 AbstractCegarLoop]: Abstraction has 2791 states and 3731 transitions. [2021-11-19 14:22:06,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-19 14:22:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3731 transitions. [2021-11-19 14:22:06,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-19 14:22:06,925 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:06,925 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:06,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:07,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:07,147 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:07,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:07,147 INFO L85 PathProgramCache]: Analyzing trace with hash -151772503, now seen corresponding path program 1 times [2021-11-19 14:22:07,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:07,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813678249] [2021-11-19 14:22:07,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:07,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:07,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:07,149 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:07,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-19 14:22:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:08,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 1033 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:08,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:09,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:10,369 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:10,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813678249] [2021-11-19 14:22:10,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813678249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:10,369 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:10,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:10,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654675611] [2021-11-19 14:22:10,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:10,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:10,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:10,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:10,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:10,372 INFO L87 Difference]: Start difference. First operand 2791 states and 3731 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:22:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:10,669 INFO L93 Difference]: Finished difference Result 2791 states and 3731 transitions. [2021-11-19 14:22:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 138 [2021-11-19 14:22:10,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:10,681 INFO L225 Difference]: With dead ends: 2791 [2021-11-19 14:22:10,682 INFO L226 Difference]: Without dead ends: 2789 [2021-11-19 14:22:10,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:10,684 INFO L933 BasicCegarLoop]: 2231 mSDtfsCounter, 2113 mSDsluCounter, 2229 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2115 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:10,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2115 Valid, 4460 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:10,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2021-11-19 14:22:10,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2789. [2021-11-19 14:22:10,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 1844 states have (on average 1.217462039045553) internal successors, (2245), 1921 states have internal predecessors, (2245), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:10,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 3729 transitions. [2021-11-19 14:22:10,992 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 3729 transitions. Word has length 138 [2021-11-19 14:22:10,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:10,993 INFO L470 AbstractCegarLoop]: Abstraction has 2789 states and 3729 transitions. [2021-11-19 14:22:10,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-19 14:22:10,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 3729 transitions. [2021-11-19 14:22:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-11-19 14:22:10,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:10,998 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:11,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:11,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:11,211 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:11,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:11,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1041944409, now seen corresponding path program 1 times [2021-11-19 14:22:11,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:11,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899523947] [2021-11-19 14:22:11,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:11,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:11,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:11,214 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:11,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-19 14:22:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:12,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:12,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:14,155 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:14,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:15,573 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:15,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899523947] [2021-11-19 14:22:15,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1899523947] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:15,573 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:15,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-19 14:22:15,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669792251] [2021-11-19 14:22:15,574 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:15,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:22:15,574 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:22:15,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:15,575 INFO L87 Difference]: Start difference. First operand 2789 states and 3729 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:22:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:15,898 INFO L93 Difference]: Finished difference Result 2789 states and 3729 transitions. [2021-11-19 14:22:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:15,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 144 [2021-11-19 14:22:15,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:15,908 INFO L225 Difference]: With dead ends: 2789 [2021-11-19 14:22:15,908 INFO L226 Difference]: Without dead ends: 2787 [2021-11-19 14:22:15,911 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:22:15,911 INFO L933 BasicCegarLoop]: 2229 mSDtfsCounter, 2168 mSDsluCounter, 4454 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:15,912 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2170 Valid, 6683 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:15,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2787 states. [2021-11-19 14:22:16,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2787 to 2787. [2021-11-19 14:22:16,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 1843 states have (on average 1.2170374389582204) internal successors, (2243), 1919 states have internal predecessors, (2243), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3727 transitions. [2021-11-19 14:22:16,200 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3727 transitions. Word has length 144 [2021-11-19 14:22:16,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:16,201 INFO L470 AbstractCegarLoop]: Abstraction has 2787 states and 3727 transitions. [2021-11-19 14:22:16,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 3 states have call successors, (46), 3 states have call predecessors, (46), 2 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-19 14:22:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3727 transitions. [2021-11-19 14:22:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 14:22:16,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:16,205 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:16,238 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:16,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:16,419 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:16,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:16,419 INFO L85 PathProgramCache]: Analyzing trace with hash 949432085, now seen corresponding path program 1 times [2021-11-19 14:22:16,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:16,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917421146] [2021-11-19 14:22:16,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:16,421 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:16,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:16,427 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:16,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-19 14:22:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:17,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:17,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:19,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:20,059 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:20,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:20,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917421146] [2021-11-19 14:22:20,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917421146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:20,060 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:20,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:20,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083698277] [2021-11-19 14:22:20,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:20,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:20,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:20,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:20,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:20,061 INFO L87 Difference]: Start difference. First operand 2787 states and 3727 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:22:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:20,406 INFO L93 Difference]: Finished difference Result 2787 states and 3727 transitions. [2021-11-19 14:22:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 150 [2021-11-19 14:22:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:20,416 INFO L225 Difference]: With dead ends: 2787 [2021-11-19 14:22:20,416 INFO L226 Difference]: Without dead ends: 2785 [2021-11-19 14:22:20,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:20,418 INFO L933 BasicCegarLoop]: 2227 mSDtfsCounter, 2094 mSDsluCounter, 4450 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2096 SdHoareTripleChecker+Valid, 6677 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:20,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2096 Valid, 6677 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:20,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-11-19 14:22:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2785. [2021-11-19 14:22:20,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 1842 states have (on average 1.216612377850163) internal successors, (2241), 1917 states have internal predecessors, (2241), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:20,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3725 transitions. [2021-11-19 14:22:20,724 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3725 transitions. Word has length 150 [2021-11-19 14:22:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:20,724 INFO L470 AbstractCegarLoop]: Abstraction has 2785 states and 3725 transitions. [2021-11-19 14:22:20,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-19 14:22:20,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3725 transitions. [2021-11-19 14:22:20,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2021-11-19 14:22:20,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:20,744 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:20,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:20,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:20,968 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:20,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:20,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1252003947, now seen corresponding path program 1 times [2021-11-19 14:22:20,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:20,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482616322] [2021-11-19 14:22:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:20,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:20,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:20,971 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:20,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-19 14:22:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:21,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:21,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:23,696 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:23,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:24,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:24,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482616322] [2021-11-19 14:22:24,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482616322] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:24,498 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:24,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:24,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184939783] [2021-11-19 14:22:24,499 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:24,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:24,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:24,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:24,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:24,501 INFO L87 Difference]: Start difference. First operand 2785 states and 3725 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:22:24,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:24,759 INFO L93 Difference]: Finished difference Result 2785 states and 3725 transitions. [2021-11-19 14:22:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:24,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 156 [2021-11-19 14:22:24,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:24,773 INFO L225 Difference]: With dead ends: 2785 [2021-11-19 14:22:24,773 INFO L226 Difference]: Without dead ends: 2783 [2021-11-19 14:22:24,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:24,776 INFO L933 BasicCegarLoop]: 2225 mSDtfsCounter, 2089 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 4448 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:24,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 4448 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:24,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2021-11-19 14:22:25,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2783. [2021-11-19 14:22:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2783 states, 1841 states have (on average 1.216186854970125) internal successors, (2239), 1915 states have internal predecessors, (2239), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2783 states to 2783 states and 3723 transitions. [2021-11-19 14:22:25,089 INFO L78 Accepts]: Start accepts. Automaton has 2783 states and 3723 transitions. Word has length 156 [2021-11-19 14:22:25,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:25,090 INFO L470 AbstractCegarLoop]: Abstraction has 2783 states and 3723 transitions. [2021-11-19 14:22:25,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:22:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2783 states and 3723 transitions. [2021-11-19 14:22:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2021-11-19 14:22:25,094 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:25,095 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:25,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:25,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:25,323 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:25,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:25,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1764725485, now seen corresponding path program 1 times [2021-11-19 14:22:25,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:25,324 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185063056] [2021-11-19 14:22:25,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:25,325 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:25,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:25,327 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:25,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-19 14:22:26,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:26,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:26,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:28,302 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:29,111 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:29,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:29,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185063056] [2021-11-19 14:22:29,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1185063056] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:29,111 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:29,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:29,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113101805] [2021-11-19 14:22:29,112 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:29,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:29,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:29,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:29,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:29,113 INFO L87 Difference]: Start difference. First operand 2783 states and 3723 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:22:29,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:29,459 INFO L93 Difference]: Finished difference Result 2783 states and 3723 transitions. [2021-11-19 14:22:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 162 [2021-11-19 14:22:29,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:29,469 INFO L225 Difference]: With dead ends: 2783 [2021-11-19 14:22:29,470 INFO L226 Difference]: Without dead ends: 2781 [2021-11-19 14:22:29,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:29,472 INFO L933 BasicCegarLoop]: 2223 mSDtfsCounter, 2078 mSDsluCounter, 4442 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 6665 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:29,473 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2080 Valid, 6665 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:29,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2781 states. [2021-11-19 14:22:29,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2781 to 2781. [2021-11-19 14:22:29,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 1840 states have (on average 1.2157608695652173) internal successors, (2237), 1913 states have internal predecessors, (2237), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3721 transitions. [2021-11-19 14:22:29,847 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3721 transitions. Word has length 162 [2021-11-19 14:22:29,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:29,847 INFO L470 AbstractCegarLoop]: Abstraction has 2781 states and 3721 transitions. [2021-11-19 14:22:29,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:22:29,848 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3721 transitions. [2021-11-19 14:22:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-19 14:22:29,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:29,858 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:29,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:30,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:30,071 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:30,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:30,071 INFO L85 PathProgramCache]: Analyzing trace with hash -635778113, now seen corresponding path program 1 times [2021-11-19 14:22:30,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:30,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [628694533] [2021-11-19 14:22:30,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:30,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:30,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:30,074 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:30,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-19 14:22:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:31,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-19 14:22:31,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:32,719 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 165 proven. 3 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2021-11-19 14:22:32,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 6 proven. 39 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-11-19 14:22:34,279 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:34,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [628694533] [2021-11-19 14:22:34,279 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [628694533] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:22:34,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1397403598] [2021-11-19 14:22:34,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:34,279 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:22:34,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:22:34,280 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:22:34,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2021-11-19 14:22:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:36,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1292 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:22:36,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2021-11-19 14:22:38,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:39,704 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2021-11-19 14:22:39,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1397403598] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:22:39,705 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:22:39,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 8, 6] total 13 [2021-11-19 14:22:39,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173946598] [2021-11-19 14:22:39,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:39,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:22:39,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:39,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:22:39,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:22:39,709 INFO L87 Difference]: Start difference. First operand 2781 states and 3721 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 14:22:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:40,379 INFO L93 Difference]: Finished difference Result 5630 states and 7556 transitions. [2021-11-19 14:22:40,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:22:40,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 205 [2021-11-19 14:22:40,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:40,394 INFO L225 Difference]: With dead ends: 5630 [2021-11-19 14:22:40,395 INFO L226 Difference]: Without dead ends: 2866 [2021-11-19 14:22:40,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 817 GetRequests, 805 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-19 14:22:40,412 INFO L933 BasicCegarLoop]: 2360 mSDtfsCounter, 320 mSDsluCounter, 8973 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 11333 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:40,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [461 Valid, 11333 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:22:40,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2021-11-19 14:22:40,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2781. [2021-11-19 14:22:40,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2781 states, 1840 states have (on average 1.2152173913043478) internal successors, (2236), 1912 states have internal predecessors, (2236), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3720 transitions. [2021-11-19 14:22:40,776 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3720 transitions. Word has length 205 [2021-11-19 14:22:40,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:40,776 INFO L470 AbstractCegarLoop]: Abstraction has 2781 states and 3720 transitions. [2021-11-19 14:22:40,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-19 14:22:40,777 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3720 transitions. [2021-11-19 14:22:40,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-19 14:22:40,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:40,781 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:40,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:41,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:41,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:41,198 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:41,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:41,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1566628075, now seen corresponding path program 1 times [2021-11-19 14:22:41,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:41,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889271317] [2021-11-19 14:22:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:41,200 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:41,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:41,200 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:41,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-19 14:22:42,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:42,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:22:42,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:44,079 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:44,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:44,864 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:22:44,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:44,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889271317] [2021-11-19 14:22:44,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889271317] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:22:44,864 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:22:44,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:22:44,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696239854] [2021-11-19 14:22:44,865 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:44,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:22:44,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:22:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:22:44,866 INFO L87 Difference]: Start difference. First operand 2781 states and 3720 transitions. Second operand has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:22:45,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:22:45,213 INFO L93 Difference]: Finished difference Result 2781 states and 3720 transitions. [2021-11-19 14:22:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:22:45,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 168 [2021-11-19 14:22:45,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:22:45,227 INFO L225 Difference]: With dead ends: 2781 [2021-11-19 14:22:45,228 INFO L226 Difference]: Without dead ends: 2779 [2021-11-19 14:22:45,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:22:45,230 INFO L933 BasicCegarLoop]: 2220 mSDtfsCounter, 2072 mSDsluCounter, 2218 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 4438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:22:45,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2074 Valid, 4438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:22:45,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2779 states. [2021-11-19 14:22:45,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2779 to 2779. [2021-11-19 14:22:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2779 states, 1839 states have (on average 1.2147906470908103) internal successors, (2234), 1910 states have internal predecessors, (2234), 743 states have call successors, (743), 189 states have call predecessors, (743), 188 states have return successors, (741), 737 states have call predecessors, (741), 741 states have call successors, (741) [2021-11-19 14:22:45,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2779 states to 2779 states and 3718 transitions. [2021-11-19 14:22:45,614 INFO L78 Accepts]: Start accepts. Automaton has 2779 states and 3718 transitions. Word has length 168 [2021-11-19 14:22:45,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:22:45,615 INFO L470 AbstractCegarLoop]: Abstraction has 2779 states and 3718 transitions. [2021-11-19 14:22:45,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:22:45,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2779 states and 3718 transitions. [2021-11-19 14:22:45,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-19 14:22:45,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:22:45,619 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:22:45,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-19 14:22:45,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:22:45,835 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:22:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:22:45,835 INFO L85 PathProgramCache]: Analyzing trace with hash 602549730, now seen corresponding path program 1 times [2021-11-19 14:22:45,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:22:45,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981448108] [2021-11-19 14:22:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:22:45,837 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:22:45,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:22:45,838 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:22:45,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-19 14:22:47,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:22:47,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:22:47,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:22:49,234 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2021-11-19 14:22:49,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:22:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 27 proven. 14 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-11-19 14:22:52,730 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:22:52,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981448108] [2021-11-19 14:22:52,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981448108] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:22:52,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:22:52,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [15] total 27 [2021-11-19 14:22:52,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874644852] [2021-11-19 14:22:52,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:22:52,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 14:22:52,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:22:52,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 14:22:52,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-11-19 14:22:52,732 INFO L87 Difference]: Start difference. First operand 2779 states and 3718 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-19 14:23:00,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:00,210 INFO L93 Difference]: Finished difference Result 6092 states and 8214 transitions. [2021-11-19 14:23:00,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-19 14:23:00,211 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 209 [2021-11-19 14:23:00,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:00,227 INFO L225 Difference]: With dead ends: 6092 [2021-11-19 14:23:00,227 INFO L226 Difference]: Without dead ends: 3333 [2021-11-19 14:23:00,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=244, Invalid=1316, Unknown=0, NotChecked=0, Total=1560 [2021-11-19 14:23:00,246 INFO L933 BasicCegarLoop]: 2732 mSDtfsCounter, 1589 mSDsluCounter, 33087 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 35819 SdHoareTripleChecker+Invalid, 1565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:00,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1596 Valid, 35819 Invalid, 1565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [870 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2021-11-19 14:23:00,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3333 states. [2021-11-19 14:23:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3333 to 2806. [2021-11-19 14:23:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2806 states, 1859 states have (on average 1.2135556750941365) internal successors, (2256), 1929 states have internal predecessors, (2256), 750 states have call successors, (750), 189 states have call predecessors, (750), 188 states have return successors, (748), 744 states have call predecessors, (748), 748 states have call successors, (748) [2021-11-19 14:23:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2806 states to 2806 states and 3754 transitions. [2021-11-19 14:23:00,693 INFO L78 Accepts]: Start accepts. Automaton has 2806 states and 3754 transitions. Word has length 209 [2021-11-19 14:23:00,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:00,694 INFO L470 AbstractCegarLoop]: Abstraction has 2806 states and 3754 transitions. [2021-11-19 14:23:00,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 6 states have call successors, (29), 2 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2021-11-19 14:23:00,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2806 states and 3754 transitions. [2021-11-19 14:23:00,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-19 14:23:00,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:00,697 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:00,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:00,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:00,911 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:00,911 INFO L85 PathProgramCache]: Analyzing trace with hash -286837313, now seen corresponding path program 1 times [2021-11-19 14:23:00,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:00,912 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2052927972] [2021-11-19 14:23:00,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:00,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:00,913 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:00,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-19 14:23:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:01,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:23:01,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:03,984 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:23:03,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:23:04,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:04,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2052927972] [2021-11-19 14:23:04,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2052927972] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:04,822 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:04,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:23:04,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681823605] [2021-11-19 14:23:04,822 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:04,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:23:04,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:04,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:23:04,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:23:04,824 INFO L87 Difference]: Start difference. First operand 2806 states and 3754 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:23:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:05,144 INFO L93 Difference]: Finished difference Result 2806 states and 3754 transitions. [2021-11-19 14:23:05,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:23:05,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 174 [2021-11-19 14:23:05,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:05,156 INFO L225 Difference]: With dead ends: 2806 [2021-11-19 14:23:05,156 INFO L226 Difference]: Without dead ends: 2804 [2021-11-19 14:23:05,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:23:05,159 INFO L933 BasicCegarLoop]: 2218 mSDtfsCounter, 2061 mSDsluCounter, 4432 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2063 SdHoareTripleChecker+Valid, 6650 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:05,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2063 Valid, 6650 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:23:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2804 states. [2021-11-19 14:23:05,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2804 to 2804. [2021-11-19 14:23:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2804 states, 1858 states have (on average 1.2131324004305706) internal successors, (2254), 1927 states have internal predecessors, (2254), 750 states have call successors, (750), 189 states have call predecessors, (750), 188 states have return successors, (748), 744 states have call predecessors, (748), 748 states have call successors, (748) [2021-11-19 14:23:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2804 states to 2804 states and 3752 transitions. [2021-11-19 14:23:05,611 INFO L78 Accepts]: Start accepts. Automaton has 2804 states and 3752 transitions. Word has length 174 [2021-11-19 14:23:05,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:05,612 INFO L470 AbstractCegarLoop]: Abstraction has 2804 states and 3752 transitions. [2021-11-19 14:23:05,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:23:05,612 INFO L276 IsEmpty]: Start isEmpty. Operand 2804 states and 3752 transitions. [2021-11-19 14:23:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-19 14:23:05,615 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:05,615 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:05,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:05,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:05,839 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:05,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash 221299263, now seen corresponding path program 1 times [2021-11-19 14:23:05,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:05,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2102397433] [2021-11-19 14:23:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:05,840 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:05,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:05,842 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:05,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-19 14:23:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:06,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:23:06,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:08,909 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:23:08,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:09,703 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-19 14:23:09,703 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:09,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2102397433] [2021-11-19 14:23:09,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2102397433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:09,704 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:09,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-19 14:23:09,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517728866] [2021-11-19 14:23:09,704 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:09,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:23:09,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:09,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:23:09,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 14:23:09,706 INFO L87 Difference]: Start difference. First operand 2804 states and 3752 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:23:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:10,019 INFO L93 Difference]: Finished difference Result 2804 states and 3752 transitions. [2021-11-19 14:23:10,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:23:10,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 180 [2021-11-19 14:23:10,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:10,028 INFO L225 Difference]: With dead ends: 2804 [2021-11-19 14:23:10,028 INFO L226 Difference]: Without dead ends: 2611 [2021-11-19 14:23:10,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 359 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:23:10,031 INFO L933 BasicCegarLoop]: 2217 mSDtfsCounter, 2052 mSDsluCounter, 4434 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 6651 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:10,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2052 Valid, 6651 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:23:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2021-11-19 14:23:10,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2021-11-19 14:23:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 1740 states have (on average 1.2241379310344827) internal successors, (2130), 1806 states have internal predecessors, (2130), 695 states have call successors, (695), 169 states have call predecessors, (695), 169 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2021-11-19 14:23:10,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3520 transitions. [2021-11-19 14:23:10,397 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3520 transitions. Word has length 180 [2021-11-19 14:23:10,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:10,397 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3520 transitions. [2021-11-19 14:23:10,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 5 states have internal predecessors, (204), 2 states have call successors, (57), 2 states have call predecessors, (57), 2 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-19 14:23:10,398 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3520 transitions. [2021-11-19 14:23:10,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-19 14:23:10,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:10,401 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:10,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:10,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:10,623 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1836703692, now seen corresponding path program 1 times [2021-11-19 14:23:10,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:10,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [926689667] [2021-11-19 14:23:10,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:10,625 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:10,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:10,625 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:10,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-19 14:23:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:12,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 1572 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:23:12,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2021-11-19 14:23:13,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-11-19 14:23:14,420 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:14,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [926689667] [2021-11-19 14:23:14,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [926689667] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:14,421 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:14,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-19 14:23:14,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589044737] [2021-11-19 14:23:14,421 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:14,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:23:14,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:14,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:23:14,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-19 14:23:14,423 INFO L87 Difference]: Start difference. First operand 2611 states and 3520 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:23:16,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:23:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:17,893 INFO L93 Difference]: Finished difference Result 5301 states and 7148 transitions. [2021-11-19 14:23:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:23:17,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 280 [2021-11-19 14:23:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:17,903 INFO L225 Difference]: With dead ends: 5301 [2021-11-19 14:23:17,904 INFO L226 Difference]: Without dead ends: 2709 [2021-11-19 14:23:17,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:23:17,915 INFO L933 BasicCegarLoop]: 2062 mSDtfsCounter, 149 mSDsluCounter, 10151 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 63 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 12213 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:17,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 12213 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-19 14:23:17,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2021-11-19 14:23:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2614. [2021-11-19 14:23:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 1743 states have (on average 1.2237521514629948) internal successors, (2133), 1809 states have internal predecessors, (2133), 695 states have call successors, (695), 169 states have call predecessors, (695), 169 states have return successors, (695), 691 states have call predecessors, (695), 695 states have call successors, (695) [2021-11-19 14:23:18,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3523 transitions. [2021-11-19 14:23:18,236 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3523 transitions. Word has length 280 [2021-11-19 14:23:18,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:18,237 INFO L470 AbstractCegarLoop]: Abstraction has 2614 states and 3523 transitions. [2021-11-19 14:23:18,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 2 states have call successors, (64), 2 states have call predecessors, (64), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:23:18,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3523 transitions. [2021-11-19 14:23:18,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-11-19 14:23:18,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:18,241 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 12, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:18,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:18,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:18,455 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1278457160, now seen corresponding path program 1 times [2021-11-19 14:23:18,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:18,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096871699] [2021-11-19 14:23:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:18,457 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:18,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:18,458 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:18,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-19 14:23:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:20,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 1619 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-19 14:23:20,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-19 14:23:22,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:24,294 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-11-19 14:23:24,294 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:24,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096871699] [2021-11-19 14:23:24,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096871699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:24,294 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:24,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15, 15] imperfect sequences [] total 18 [2021-11-19 14:23:24,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544252759] [2021-11-19 14:23:24,295 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:24,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:23:24,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:24,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:23:24,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2021-11-19 14:23:24,296 INFO L87 Difference]: Start difference. First operand 2614 states and 3523 transitions. Second operand has 18 states, 17 states have (on average 9.0) internal successors, (153), 17 states have internal predecessors, (153), 8 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (52), 8 states have call predecessors, (52), 8 states have call successors, (52) [2021-11-19 14:23:31,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:31,169 INFO L93 Difference]: Finished difference Result 6091 states and 8274 transitions. [2021-11-19 14:23:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-19 14:23:31,170 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 9.0) internal successors, (153), 17 states have internal predecessors, (153), 8 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (52), 8 states have call predecessors, (52), 8 states have call successors, (52) Word has length 301 [2021-11-19 14:23:31,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:31,179 INFO L225 Difference]: With dead ends: 6091 [2021-11-19 14:23:31,180 INFO L226 Difference]: Without dead ends: 3495 [2021-11-19 14:23:31,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=198, Invalid=924, Unknown=0, NotChecked=0, Total=1122 [2021-11-19 14:23:31,193 INFO L933 BasicCegarLoop]: 2412 mSDtfsCounter, 1270 mSDsluCounter, 29622 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1341 SdHoareTripleChecker+Valid, 32034 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:31,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1341 Valid, 32034 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-19 14:23:31,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3495 states. [2021-11-19 14:23:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3495 to 2609. [2021-11-19 14:23:31,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 1741 states have (on average 1.2240091901206203) internal successors, (2131), 1807 states have internal predecessors, (2131), 692 states have call successors, (692), 169 states have call predecessors, (692), 169 states have return successors, (692), 688 states have call predecessors, (692), 692 states have call successors, (692) [2021-11-19 14:23:31,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 3515 transitions. [2021-11-19 14:23:31,532 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 3515 transitions. Word has length 301 [2021-11-19 14:23:31,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:31,532 INFO L470 AbstractCegarLoop]: Abstraction has 2609 states and 3515 transitions. [2021-11-19 14:23:31,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 9.0) internal successors, (153), 17 states have internal predecessors, (153), 8 states have call successors, (55), 2 states have call predecessors, (55), 5 states have return successors, (52), 8 states have call predecessors, (52), 8 states have call successors, (52) [2021-11-19 14:23:31,533 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 3515 transitions. [2021-11-19 14:23:31,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-11-19 14:23:31,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:31,535 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:31,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:31,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:31,736 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:31,736 INFO L85 PathProgramCache]: Analyzing trace with hash 20252910, now seen corresponding path program 1 times [2021-11-19 14:23:31,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:31,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080870294] [2021-11-19 14:23:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:31,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:31,739 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:31,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-19 14:23:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:33,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 1691 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:23:33,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:34,833 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2021-11-19 14:23:34,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2021-11-19 14:23:36,096 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:36,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1080870294] [2021-11-19 14:23:36,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1080870294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:36,096 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:36,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-19 14:23:36,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878014847] [2021-11-19 14:23:36,097 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:36,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:23:36,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:36,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:23:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:23:36,099 INFO L87 Difference]: Start difference. First operand 2609 states and 3515 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:23:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:37,069 INFO L93 Difference]: Finished difference Result 5338 states and 7199 transitions. [2021-11-19 14:23:37,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-19 14:23:37,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) Word has length 299 [2021-11-19 14:23:37,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:37,085 INFO L225 Difference]: With dead ends: 5338 [2021-11-19 14:23:37,086 INFO L226 Difference]: Without dead ends: 2748 [2021-11-19 14:23:37,096 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 598 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:23:37,097 INFO L933 BasicCegarLoop]: 2102 mSDtfsCounter, 209 mSDsluCounter, 10426 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 12528 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:37,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 12528 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:23:37,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2748 states. [2021-11-19 14:23:37,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2748 to 2614. [2021-11-19 14:23:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 1745 states have (on average 1.2234957020057307) internal successors, (2135), 1811 states have internal predecessors, (2135), 692 states have call successors, (692), 169 states have call predecessors, (692), 170 states have return successors, (695), 689 states have call predecessors, (695), 692 states have call successors, (695) [2021-11-19 14:23:37,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3522 transitions. [2021-11-19 14:23:37,567 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3522 transitions. Word has length 299 [2021-11-19 14:23:37,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 2614 states and 3522 transitions. [2021-11-19 14:23:37,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 8 states have internal predecessors, (167), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 4 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-19 14:23:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3522 transitions. [2021-11-19 14:23:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-11-19 14:23:37,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:37,571 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:37,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:37,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:37,772 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash 25128800, now seen corresponding path program 1 times [2021-11-19 14:23:37,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:37,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037870375] [2021-11-19 14:23:37,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:37,774 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:37,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:37,775 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:37,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-19 14:23:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:39,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:23:39,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 396 trivial. 0 not checked. [2021-11-19 14:23:40,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:41,414 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-11-19 14:23:41,415 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:41,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037870375] [2021-11-19 14:23:41,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037870375] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:41,415 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:41,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 14:23:41,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742859125] [2021-11-19 14:23:41,416 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:41,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:23:41,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:41,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:23:41,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:41,419 INFO L87 Difference]: Start difference. First operand 2614 states and 3522 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:23:41,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:41,849 INFO L93 Difference]: Finished difference Result 5226 states and 7046 transitions. [2021-11-19 14:23:41,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:23:41,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 315 [2021-11-19 14:23:41,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:41,860 INFO L225 Difference]: With dead ends: 5226 [2021-11-19 14:23:41,861 INFO L226 Difference]: Without dead ends: 2631 [2021-11-19 14:23:41,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 628 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:23:41,869 INFO L933 BasicCegarLoop]: 1989 mSDtfsCounter, 30 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:41,870 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 3971 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:23:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2021-11-19 14:23:42,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2623. [2021-11-19 14:23:42,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2623 states, 1752 states have (on average 1.2237442922374429) internal successors, (2144), 1819 states have internal predecessors, (2144), 694 states have call successors, (694), 169 states have call predecessors, (694), 170 states have return successors, (697), 691 states have call predecessors, (697), 694 states have call successors, (697) [2021-11-19 14:23:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 3535 transitions. [2021-11-19 14:23:42,316 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 3535 transitions. Word has length 315 [2021-11-19 14:23:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:42,317 INFO L470 AbstractCegarLoop]: Abstraction has 2623 states and 3535 transitions. [2021-11-19 14:23:42,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-19 14:23:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 3535 transitions. [2021-11-19 14:23:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-19 14:23:42,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:42,321 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:42,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:42,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:42,543 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:42,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:42,543 INFO L85 PathProgramCache]: Analyzing trace with hash -720018598, now seen corresponding path program 1 times [2021-11-19 14:23:42,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:42,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1326705970] [2021-11-19 14:23:42,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:42,545 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:42,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:42,545 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:42,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-19 14:23:44,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:44,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:23:44,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:45,577 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-11-19 14:23:45,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:46,473 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2021-11-19 14:23:46,473 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:46,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1326705970] [2021-11-19 14:23:46,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1326705970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:46,474 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:23:46,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 14:23:46,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289001871] [2021-11-19 14:23:46,474 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:46,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:23:46,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:46,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:23:46,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 14:23:46,476 INFO L87 Difference]: Start difference. First operand 2623 states and 3535 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:23:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:46,953 INFO L93 Difference]: Finished difference Result 5237 states and 7062 transitions. [2021-11-19 14:23:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:23:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 329 [2021-11-19 14:23:46,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:46,962 INFO L225 Difference]: With dead ends: 5237 [2021-11-19 14:23:46,962 INFO L226 Difference]: Without dead ends: 2633 [2021-11-19 14:23:46,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 652 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:23:46,970 INFO L933 BasicCegarLoop]: 1987 mSDtfsCounter, 3 mSDsluCounter, 5950 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7937 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:46,971 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 7937 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:23:46,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2021-11-19 14:23:47,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2633. [2021-11-19 14:23:47,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 1760 states have (on average 1.2227272727272727) internal successors, (2152), 1825 states have internal predecessors, (2152), 696 states have call successors, (696), 169 states have call predecessors, (696), 170 states have return successors, (699), 693 states have call predecessors, (699), 696 states have call successors, (699) [2021-11-19 14:23:47,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3547 transitions. [2021-11-19 14:23:47,305 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3547 transitions. Word has length 329 [2021-11-19 14:23:47,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:47,306 INFO L470 AbstractCegarLoop]: Abstraction has 2633 states and 3547 transitions. [2021-11-19 14:23:47,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:23:47,306 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3547 transitions. [2021-11-19 14:23:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-11-19 14:23:47,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:47,310 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:47,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:47,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:23:47,531 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:47,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:47,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1524035552, now seen corresponding path program 1 times [2021-11-19 14:23:47,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:47,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037955054] [2021-11-19 14:23:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:47,533 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:47,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:47,534 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:47,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-19 14:23:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:49,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:23:49,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:50,671 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 104 proven. 7 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-11-19 14:23:50,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-19 14:23:51,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:23:51,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037955054] [2021-11-19 14:23:51,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2037955054] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:23:51,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [469281441] [2021-11-19 14:23:51,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:51,865 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:23:51,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:23:51,871 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:23:51,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2021-11-19 14:23:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:53,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:23:53,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:54,194 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 104 proven. 7 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2021-11-19 14:23:54,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:55,037 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2021-11-19 14:23:55,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [469281441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:23:55,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604260519] [2021-11-19 14:23:55,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:55,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:23:55,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:23:55,040 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:23:55,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-19 14:23:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:23:56,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 1768 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:23:56,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:23:57,091 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-11-19 14:23:57,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:23:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 513 trivial. 0 not checked. [2021-11-19 14:23:57,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604260519] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:23:57,832 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:23:57,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6, 6, 6] total 13 [2021-11-19 14:23:57,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673700605] [2021-11-19 14:23:57,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:23:57,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:23:57,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:23:57,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:23:57,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-11-19 14:23:57,834 INFO L87 Difference]: Start difference. First operand 2633 states and 3547 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-19 14:23:58,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:23:58,776 INFO L93 Difference]: Finished difference Result 5397 states and 7274 transitions. [2021-11-19 14:23:58,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:23:58,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 341 [2021-11-19 14:23:58,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:23:58,788 INFO L225 Difference]: With dead ends: 5397 [2021-11-19 14:23:58,788 INFO L226 Difference]: Without dead ends: 2783 [2021-11-19 14:23:58,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2044 GetRequests, 2031 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:23:58,798 INFO L933 BasicCegarLoop]: 2132 mSDtfsCounter, 196 mSDsluCounter, 6120 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 8252 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:23:58,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 8252 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:23:58,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2783 states. [2021-11-19 14:23:59,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2783 to 2636. [2021-11-19 14:23:59,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 1763 states have (on average 1.2223482699943278) internal successors, (2155), 1828 states have internal predecessors, (2155), 696 states have call successors, (696), 169 states have call predecessors, (696), 170 states have return successors, (699), 693 states have call predecessors, (699), 696 states have call successors, (699) [2021-11-19 14:23:59,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3550 transitions. [2021-11-19 14:23:59,271 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3550 transitions. Word has length 341 [2021-11-19 14:23:59,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:23:59,271 INFO L470 AbstractCegarLoop]: Abstraction has 2636 states and 3550 transitions. [2021-11-19 14:23:59,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-19 14:23:59,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3550 transitions. [2021-11-19 14:23:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-11-19 14:23:59,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:23:59,276 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:23:59,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:59,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2021-11-19 14:23:59,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-19 14:23:59,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:23:59,895 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:23:59,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:23:59,895 INFO L85 PathProgramCache]: Analyzing trace with hash -969346047, now seen corresponding path program 1 times [2021-11-19 14:23:59,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:23:59,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827645860] [2021-11-19 14:23:59,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:23:59,897 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:23:59,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:23:59,899 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:23:59,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-19 14:24:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:02,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:02,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:24:03,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-19 14:24:04,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:04,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827645860] [2021-11-19 14:24:04,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827645860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:04,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [766631299] [2021-11-19 14:24:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:04,957 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:04,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:24:04,957 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:24:04,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2021-11-19 14:24:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:06,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:06,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:07,484 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 113 proven. 7 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2021-11-19 14:24:07,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2021-11-19 14:24:08,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [766631299] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:08,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161850812] [2021-11-19 14:24:08,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:08,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:24:08,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:24:08,620 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:24:08,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-19 14:24:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:09,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:24:09,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2021-11-19 14:24:10,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:12,262 INFO L134 CoverageAnalysis]: Checked inductivity of 606 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2021-11-19 14:24:12,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161850812] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:12,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:24:12,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 6, 6, 6] total 16 [2021-11-19 14:24:12,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014956233] [2021-11-19 14:24:12,263 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:12,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:24:12,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:12,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:24:12,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:24:12,264 INFO L87 Difference]: Start difference. First operand 2636 states and 3550 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 6 states have internal predecessors, (166), 2 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:24:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:12,949 INFO L93 Difference]: Finished difference Result 5432 states and 7328 transitions. [2021-11-19 14:24:12,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:24:12,950 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 6 states have internal predecessors, (166), 2 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) Word has length 382 [2021-11-19 14:24:12,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:12,960 INFO L225 Difference]: With dead ends: 5432 [2021-11-19 14:24:12,960 INFO L226 Difference]: Without dead ends: 2815 [2021-11-19 14:24:12,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2286 GetRequests, 2272 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-19 14:24:12,967 INFO L933 BasicCegarLoop]: 2118 mSDtfsCounter, 135 mSDsluCounter, 10422 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 12540 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:12,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 12540 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:24:12,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2021-11-19 14:24:13,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2640. [2021-11-19 14:24:13,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 1766 states have (on average 1.2219705549263873) internal successors, (2158), 1831 states have internal predecessors, (2158), 696 states have call successors, (696), 169 states have call predecessors, (696), 171 states have return successors, (704), 694 states have call predecessors, (704), 696 states have call successors, (704) [2021-11-19 14:24:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3558 transitions. [2021-11-19 14:24:13,358 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3558 transitions. Word has length 382 [2021-11-19 14:24:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:13,359 INFO L470 AbstractCegarLoop]: Abstraction has 2640 states and 3558 transitions. [2021-11-19 14:24:13,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 6 states have internal predecessors, (166), 2 states have call successors, (59), 2 states have call predecessors, (59), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-19 14:24:13,359 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3558 transitions. [2021-11-19 14:24:13,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-19 14:24:13,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:13,363 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:13,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:13,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:13,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (38)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:13,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:13,971 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:24:13,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:13,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1500870979, now seen corresponding path program 1 times [2021-11-19 14:24:13,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:13,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1683691185] [2021-11-19 14:24:13,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:13,973 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:13,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:13,974 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:13,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2021-11-19 14:24:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:16,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:16,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 125 proven. 7 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:24:17,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2021-11-19 14:24:19,115 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:19,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1683691185] [2021-11-19 14:24:19,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1683691185] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:19,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1043035218] [2021-11-19 14:24:19,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:19,116 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:24:19,116 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:24:19,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2021-11-19 14:24:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:20,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:20,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 125 proven. 7 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:24:21,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:22,835 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 632 trivial. 0 not checked. [2021-11-19 14:24:22,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1043035218] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:22,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366685902] [2021-11-19 14:24:22,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:22,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:24:22,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:24:22,836 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:24:22,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-19 14:24:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:23,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 1975 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:24:23,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-19 14:24:25,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2021-11-19 14:24:25,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366685902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:25,937 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:24:25,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [6, 6, 6, 6] total 15 [2021-11-19 14:24:25,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717659642] [2021-11-19 14:24:25,938 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:25,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:24:25,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:24:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:24:25,939 INFO L87 Difference]: Start difference. First operand 2640 states and 3558 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:24:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:27,763 INFO L93 Difference]: Finished difference Result 5705 states and 7721 transitions. [2021-11-19 14:24:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:24:27,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 411 [2021-11-19 14:24:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:27,778 INFO L225 Difference]: With dead ends: 5705 [2021-11-19 14:24:27,778 INFO L226 Difference]: Without dead ends: 3084 [2021-11-19 14:24:27,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2469 GetRequests, 2451 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:24:27,787 INFO L933 BasicCegarLoop]: 2348 mSDtfsCounter, 832 mSDsluCounter, 11278 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 13626 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:27,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [924 Valid, 13626 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 14:24:27,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-11-19 14:24:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2644. [2021-11-19 14:24:28,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1770 states have (on average 1.2214689265536722) internal successors, (2162), 1834 states have internal predecessors, (2162), 696 states have call successors, (696), 169 states have call predecessors, (696), 171 states have return successors, (704), 695 states have call predecessors, (704), 696 states have call successors, (704) [2021-11-19 14:24:28,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3562 transitions. [2021-11-19 14:24:28,076 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3562 transitions. Word has length 411 [2021-11-19 14:24:28,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:28,077 INFO L470 AbstractCegarLoop]: Abstraction has 2644 states and 3562 transitions. [2021-11-19 14:24:28,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 2 states have call successors, (54), 1 states have call predecessors, (54), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-19 14:24:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3562 transitions. [2021-11-19 14:24:28,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-19 14:24:28,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:28,083 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:28,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:28,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:28,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:28,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:28,711 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:24:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:28,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1126526848, now seen corresponding path program 1 times [2021-11-19 14:24:28,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:28,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1164903407] [2021-11-19 14:24:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:28,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:28,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:28,714 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:28,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2021-11-19 14:24:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:30,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:30,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:32,663 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 128 proven. 7 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:24:32,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:34,168 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2021-11-19 14:24:34,168 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:34,168 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1164903407] [2021-11-19 14:24:34,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1164903407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:34,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [940716138] [2021-11-19 14:24:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:34,169 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:24:34,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:24:34,169 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:24:34,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2021-11-19 14:24:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:35,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:35,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:36,984 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 128 proven. 7 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:24:36,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:38,182 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2021-11-19 14:24:38,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [940716138] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:38,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574459037] [2021-11-19 14:24:38,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:24:38,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:24:38,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:24:38,183 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:24:38,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-19 14:24:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:24:39,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 2039 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:24:39,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:41,047 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 128 proven. 7 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2021-11-19 14:24:41,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:42,226 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 635 trivial. 0 not checked. [2021-11-19 14:24:42,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574459037] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:24:42,226 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 14:24:42,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-11-19 14:24:42,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933404714] [2021-11-19 14:24:42,227 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 14:24:42,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:24:42,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:42,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:24:42,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-19 14:24:42,229 INFO L87 Difference]: Start difference. First operand 2644 states and 3562 transitions. Second operand has 10 states, 10 states have (on average 23.9) internal successors, (239), 10 states have internal predecessors, (239), 6 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 6 states have call predecessors, (94), 6 states have call successors, (94) [2021-11-19 14:24:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:24:43,257 INFO L93 Difference]: Finished difference Result 5293 states and 7140 transitions. [2021-11-19 14:24:43,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-19 14:24:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.9) internal successors, (239), 10 states have internal predecessors, (239), 6 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 6 states have call predecessors, (94), 6 states have call successors, (94) Word has length 437 [2021-11-19 14:24:43,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:24:43,264 INFO L225 Difference]: With dead ends: 5293 [2021-11-19 14:24:43,265 INFO L226 Difference]: Without dead ends: 2668 [2021-11-19 14:24:43,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2621 GetRequests, 2608 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2021-11-19 14:24:43,270 INFO L933 BasicCegarLoop]: 1993 mSDtfsCounter, 9 mSDsluCounter, 9928 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 11921 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:24:43,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 11921 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:24:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2021-11-19 14:24:43,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2668. [2021-11-19 14:24:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 1786 states have (on average 1.219484882418813) internal successors, (2178), 1850 states have internal predecessors, (2178), 704 states have call successors, (704), 169 states have call predecessors, (704), 171 states have return successors, (712), 703 states have call predecessors, (712), 704 states have call successors, (712) [2021-11-19 14:24:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3594 transitions. [2021-11-19 14:24:43,546 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3594 transitions. Word has length 437 [2021-11-19 14:24:43,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:24:43,547 INFO L470 AbstractCegarLoop]: Abstraction has 2668 states and 3594 transitions. [2021-11-19 14:24:43,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.9) internal successors, (239), 10 states have internal predecessors, (239), 6 states have call successors, (94), 2 states have call predecessors, (94), 2 states have return successors, (94), 6 states have call predecessors, (94), 6 states have call successors, (94) [2021-11-19 14:24:43,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3594 transitions. [2021-11-19 14:24:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-19 14:24:43,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:24:43,552 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:24:43,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:43,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:44,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (44)] Forceful destruction successful, exit code 0 [2021-11-19 14:24:44,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:24:44,179 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:24:44,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:24:44,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1999180020, now seen corresponding path program 2 times [2021-11-19 14:24:44,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:24:44,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145555305] [2021-11-19 14:24:44,181 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 14:24:44,181 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:24:44,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:24:44,182 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:24:44,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2021-11-19 14:24:45,026 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-19 14:24:45,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:24:45,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-19 14:24:45,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:24:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-19 14:24:46,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:24:47,660 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2021-11-19 14:24:47,660 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:24:47,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145555305] [2021-11-19 14:24:47,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145555305] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:24:47,661 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:24:47,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-19 14:24:47,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341592230] [2021-11-19 14:24:47,661 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:24:47,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:24:47,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:24:47,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:24:47,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:24:47,662 INFO L87 Difference]: Start difference. First operand 2668 states and 3594 transitions. Second operand has 12 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-19 14:25:00,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:25:00,201 INFO L93 Difference]: Finished difference Result 6275 states and 8735 transitions. [2021-11-19 14:25:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-19 14:25:00,202 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 461 [2021-11-19 14:25:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:25:00,310 INFO L225 Difference]: With dead ends: 6275 [2021-11-19 14:25:00,311 INFO L226 Difference]: Without dead ends: 6273 [2021-11-19 14:25:00,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 986 GetRequests, 920 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1450 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=991, Invalid=3565, Unknown=0, NotChecked=0, Total=4556 [2021-11-19 14:25:00,316 INFO L933 BasicCegarLoop]: 3339 mSDtfsCounter, 1896 mSDsluCounter, 22034 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 1169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 25373 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1169 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:25:00,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2178 Valid, 25373 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1169 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-19 14:25:00,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6273 states. [2021-11-19 14:25:00,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6273 to 2668. [2021-11-19 14:25:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2668 states, 1786 states have (on average 1.2189249720044792) internal successors, (2177), 1850 states have internal predecessors, (2177), 704 states have call successors, (704), 169 states have call predecessors, (704), 171 states have return successors, (712), 703 states have call predecessors, (712), 704 states have call successors, (712) [2021-11-19 14:25:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2668 states to 2668 states and 3593 transitions. [2021-11-19 14:25:00,816 INFO L78 Accepts]: Start accepts. Automaton has 2668 states and 3593 transitions. Word has length 461 [2021-11-19 14:25:00,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:25:00,817 INFO L470 AbstractCegarLoop]: Abstraction has 2668 states and 3593 transitions. [2021-11-19 14:25:00,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.5) internal successors, (186), 12 states have internal predecessors, (186), 3 states have call successors, (65), 1 states have call predecessors, (65), 1 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-19 14:25:00,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2668 states and 3593 transitions. [2021-11-19 14:25:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2021-11-19 14:25:00,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:00,824 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:25:00,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:01,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:25:01,047 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:25:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash 481716144, now seen corresponding path program 1 times [2021-11-19 14:25:01,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:01,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [624193978] [2021-11-19 14:25:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:01,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:01,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:01,052 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:01,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2021-11-19 14:25:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:03,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:03,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:05,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 364 proven. 57 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2021-11-19 14:25:05,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2021-11-19 14:25:08,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:08,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [624193978] [2021-11-19 14:25:08,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [624193978] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:08,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [882960044] [2021-11-19 14:25:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:08,075 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:25:08,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:25:08,075 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:25:08,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2021-11-19 14:25:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:09,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:09,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:11,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 364 proven. 57 refuted. 0 times theorem prover too weak. 606 trivial. 0 not checked. [2021-11-19 14:25:11,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:12,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2021-11-19 14:25:12,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [882960044] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:12,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848608832] [2021-11-19 14:25:12,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:12,827 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:25:12,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:25:12,828 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:25:12,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-19 14:25:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:14,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 14:25:14,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:20,502 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-19 14:25:20,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:23,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-19 14:25:23,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848608832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:25:23,302 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:25:23,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-19 14:25:23,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610180571] [2021-11-19 14:25:23,304 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:25:23,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:25:23,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:25:23,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:25:23,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:25:23,306 INFO L87 Difference]: Start difference. First operand 2668 states and 3593 transitions. Second operand has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 5 states have internal predecessors, (260), 2 states have call successors, (126), 4 states have call predecessors, (126), 2 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-19 14:25:24,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:25:24,097 INFO L93 Difference]: Finished difference Result 3405 states and 4532 transitions. [2021-11-19 14:25:24,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:25:24,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 5 states have internal predecessors, (260), 2 states have call successors, (126), 4 states have call predecessors, (126), 2 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 491 [2021-11-19 14:25:24,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:25:24,111 INFO L225 Difference]: With dead ends: 3405 [2021-11-19 14:25:24,112 INFO L226 Difference]: Without dead ends: 3403 [2021-11-19 14:25:24,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2942 GetRequests, 2919 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:25:24,115 INFO L933 BasicCegarLoop]: 2187 mSDtfsCounter, 1243 mSDsluCounter, 5295 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 7482 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:25:24,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1244 Valid, 7482 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:25:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2021-11-19 14:25:24,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3395. [2021-11-19 14:25:24,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3395 states, 2247 states have (on average 1.2105028927458834) internal successors, (2720), 2316 states have internal predecessors, (2720), 898 states have call successors, (898), 242 states have call predecessors, (898), 244 states have return successors, (905), 897 states have call predecessors, (905), 898 states have call successors, (905) [2021-11-19 14:25:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3395 states to 3395 states and 4523 transitions. [2021-11-19 14:25:24,640 INFO L78 Accepts]: Start accepts. Automaton has 3395 states and 4523 transitions. Word has length 491 [2021-11-19 14:25:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:25:24,641 INFO L470 AbstractCegarLoop]: Abstraction has 3395 states and 4523 transitions. [2021-11-19 14:25:24,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 37.142857142857146) internal successors, (260), 5 states have internal predecessors, (260), 2 states have call successors, (126), 4 states have call predecessors, (126), 2 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2021-11-19 14:25:24,642 INFO L276 IsEmpty]: Start isEmpty. Operand 3395 states and 4523 transitions. [2021-11-19 14:25:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-19 14:25:24,691 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:24,692 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:25:24,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:24,910 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:25,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:25,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:25:25,293 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:25:25,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:25,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1740589588, now seen corresponding path program 1 times [2021-11-19 14:25:25,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:25,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [265133216] [2021-11-19 14:25:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:25,295 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:25,296 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:25,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Waiting until timeout for monitored process [2021-11-19 14:25:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:27,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:27,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 275 proven. 57 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2021-11-19 14:25:29,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:31,926 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2021-11-19 14:25:31,927 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:31,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [265133216] [2021-11-19 14:25:31,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [265133216] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:31,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1495208360] [2021-11-19 14:25:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:31,928 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:25:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:25:31,929 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:25:31,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2021-11-19 14:25:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:33,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:33,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:35,014 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 275 proven. 57 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2021-11-19 14:25:35,014 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2021-11-19 14:25:36,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1495208360] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:36,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658173487] [2021-11-19 14:25:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:36,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:25:36,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:25:36,464 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:25:36,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-19 14:25:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:37,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 2191 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:25:37,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2021-11-19 14:25:39,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:41,027 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2021-11-19 14:25:41,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658173487] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:25:41,028 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:25:41,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [10, 10, 10, 10] total 26 [2021-11-19 14:25:41,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287778899] [2021-11-19 14:25:41,029 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:25:41,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:25:41,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:25:41,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:25:41,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=554, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:25:41,030 INFO L87 Difference]: Start difference. First operand 3395 states and 4523 transitions. Second operand has 10 states, 10 states have (on average 18.4) internal successors, (184), 9 states have internal predecessors, (184), 2 states have call successors, (61), 1 states have call predecessors, (61), 2 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:25:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:25:43,764 INFO L93 Difference]: Finished difference Result 7507 states and 10069 transitions. [2021-11-19 14:25:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:25:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 9 states have internal predecessors, (184), 2 states have call successors, (61), 1 states have call predecessors, (61), 2 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) Word has length 481 [2021-11-19 14:25:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:25:43,775 INFO L225 Difference]: With dead ends: 7507 [2021-11-19 14:25:43,775 INFO L226 Difference]: Without dead ends: 4131 [2021-11-19 14:25:43,781 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2890 GetRequests, 2860 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=133, Invalid=859, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:25:43,781 INFO L933 BasicCegarLoop]: 2362 mSDtfsCounter, 954 mSDsluCounter, 18321 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 20683 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:25:43,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 20683 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-19 14:25:43,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4131 states. [2021-11-19 14:25:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4131 to 3649. [2021-11-19 14:25:44,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3649 states, 2439 states have (on average 1.2111521115211152) internal successors, (2954), 2517 states have internal predecessors, (2954), 958 states have call successors, (958), 242 states have call predecessors, (958), 246 states have return successors, (972), 958 states have call predecessors, (972), 958 states have call successors, (972) [2021-11-19 14:25:44,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3649 states to 3649 states and 4884 transitions. [2021-11-19 14:25:44,195 INFO L78 Accepts]: Start accepts. Automaton has 3649 states and 4884 transitions. Word has length 481 [2021-11-19 14:25:44,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:25:44,196 INFO L470 AbstractCegarLoop]: Abstraction has 3649 states and 4884 transitions. [2021-11-19 14:25:44,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.4) internal successors, (184), 9 states have internal predecessors, (184), 2 states have call successors, (61), 1 states have call predecessors, (61), 2 states have return successors, (61), 3 states have call predecessors, (61), 2 states have call successors, (61) [2021-11-19 14:25:44,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 4884 transitions. [2021-11-19 14:25:44,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-11-19 14:25:44,200 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:25:44,201 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 11, 11, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:25:44,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (51)] Forceful destruction successful, exit code 0 [2021-11-19 14:25:44,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2021-11-19 14:25:44,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-11-19 14:25:44,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:25:44,802 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:25:44,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:25:44,802 INFO L85 PathProgramCache]: Analyzing trace with hash -613434527, now seen corresponding path program 1 times [2021-11-19 14:25:44,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:25:44,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934283945] [2021-11-19 14:25:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:44,804 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:25:44,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:25:44,805 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:25:44,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Waiting until timeout for monitored process [2021-11-19 14:25:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:47,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:47,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:49,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 382 proven. 57 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-19 14:25:49,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:52,151 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-19 14:25:52,151 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:25:52,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934283945] [2021-11-19 14:25:52,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [934283945] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:52,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [551155822] [2021-11-19 14:25:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:52,152 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:25:52,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:25:52,153 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:25:52,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2021-11-19 14:25:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:53,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:25:53,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 382 proven. 57 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-19 14:25:55,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:25:57,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-19 14:25:57,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [551155822] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:25:57,134 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436785078] [2021-11-19 14:25:57,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:25:57,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:25:57,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:25:57,135 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:25:57,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-19 14:25:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:25:58,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2381 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:25:58,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:25:59,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-19 14:25:59,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:01,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-19 14:26:01,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436785078] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:01,066 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:26:01,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-19 14:26:01,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144862626] [2021-11-19 14:26:01,067 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:01,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:26:01,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:01,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:26:01,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:26:01,068 INFO L87 Difference]: Start difference. First operand 3649 states and 4884 transitions. Second operand has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:26:01,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:01,844 INFO L93 Difference]: Finished difference Result 3649 states and 4884 transitions. [2021-11-19 14:26:01,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:26:01,845 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 513 [2021-11-19 14:26:01,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:01,858 INFO L225 Difference]: With dead ends: 3649 [2021-11-19 14:26:01,858 INFO L226 Difference]: Without dead ends: 3647 [2021-11-19 14:26:01,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3074 GetRequests, 3051 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:26:01,862 INFO L933 BasicCegarLoop]: 1980 mSDtfsCounter, 59 mSDsluCounter, 7870 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 9850 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:01,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 9850 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:26:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3647 states. [2021-11-19 14:26:02,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3647 to 3647. [2021-11-19 14:26:02,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3647 states, 2438 states have (on average 1.2095980311730927) internal successors, (2949), 2515 states have internal predecessors, (2949), 958 states have call successors, (958), 242 states have call predecessors, (958), 246 states have return successors, (972), 958 states have call predecessors, (972), 958 states have call successors, (972) [2021-11-19 14:26:02,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 4879 transitions. [2021-11-19 14:26:02,318 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 4879 transitions. Word has length 513 [2021-11-19 14:26:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:02,319 INFO L470 AbstractCegarLoop]: Abstraction has 3647 states and 4879 transitions. [2021-11-19 14:26:02,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2021-11-19 14:26:02,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 4879 transitions. [2021-11-19 14:26:02,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2021-11-19 14:26:02,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:02,325 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 10, 10, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:02,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:02,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:02,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (54)] Ended with exit code 0 [2021-11-19 14:26:02,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:26:02,926 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:26:02,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:02,926 INFO L85 PathProgramCache]: Analyzing trace with hash -334688383, now seen corresponding path program 1 times [2021-11-19 14:26:02,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:02,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493472840] [2021-11-19 14:26:02,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:02,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:02,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:02,929 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:02,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Waiting until timeout for monitored process [2021-11-19 14:26:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:05,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:26:05,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 442 proven. 57 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2021-11-19 14:26:07,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:10,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-11-19 14:26:10,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:10,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493472840] [2021-11-19 14:26:10,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493472840] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:26:10,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1166338994] [2021-11-19 14:26:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:10,035 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:10,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:26:10,036 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:26:10,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2021-11-19 14:26:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:11,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:26:11,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:13,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 442 proven. 57 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2021-11-19 14:26:13,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:14,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-11-19 14:26:14,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1166338994] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:26:14,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865516105] [2021-11-19 14:26:14,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:14,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:26:14,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:26:14,893 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:26:14,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-19 14:26:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:16,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 2292 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-19 14:26:16,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:19,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 846 trivial. 0 not checked. [2021-11-19 14:26:19,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:21,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1142 backedges. 78 proven. 12 refuted. 0 times theorem prover too weak. 1052 trivial. 0 not checked. [2021-11-19 14:26:21,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865516105] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:26:21,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:26:21,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10, 10, 10, 10, 12] total 29 [2021-11-19 14:26:21,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777767587] [2021-11-19 14:26:21,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:21,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:26:21,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:21,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:26:21,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=708, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:26:21,518 INFO L87 Difference]: Start difference. First operand 3647 states and 4879 transitions. Second operand has 12 states, 12 states have (on average 16.75) internal successors, (201), 10 states have internal predecessors, (201), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (67), 5 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-19 14:26:26,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:26,787 INFO L93 Difference]: Finished difference Result 7598 states and 10203 transitions. [2021-11-19 14:26:26,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-19 14:26:26,789 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 16.75) internal successors, (201), 10 states have internal predecessors, (201), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (67), 5 states have call predecessors, (67), 3 states have call successors, (67) Word has length 512 [2021-11-19 14:26:26,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:26,800 INFO L225 Difference]: With dead ends: 7598 [2021-11-19 14:26:26,800 INFO L226 Difference]: Without dead ends: 3968 [2021-11-19 14:26:26,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3074 GetRequests, 3040 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=146, Invalid=1114, Unknown=0, NotChecked=0, Total=1260 [2021-11-19 14:26:26,812 INFO L933 BasicCegarLoop]: 2452 mSDtfsCounter, 454 mSDsluCounter, 23771 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 26223 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [518 Valid, 26223 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-19 14:26:26,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3968 states. [2021-11-19 14:26:27,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3968 to 3415. [2021-11-19 14:26:27,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3415 states, 2262 states have (on average 1.207338638373121) internal successors, (2731), 2331 states have internal predecessors, (2731), 902 states have call successors, (902), 242 states have call predecessors, (902), 246 states have return successors, (914), 902 states have call predecessors, (914), 902 states have call successors, (914) [2021-11-19 14:26:27,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3415 states to 3415 states and 4547 transitions. [2021-11-19 14:26:27,340 INFO L78 Accepts]: Start accepts. Automaton has 3415 states and 4547 transitions. Word has length 512 [2021-11-19 14:26:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:27,341 INFO L470 AbstractCegarLoop]: Abstraction has 3415 states and 4547 transitions. [2021-11-19 14:26:27,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.75) internal successors, (201), 10 states have internal predecessors, (201), 3 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (67), 5 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-19 14:26:27,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3415 states and 4547 transitions. [2021-11-19 14:26:27,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2021-11-19 14:26:27,346 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:27,347 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 16, 11, 11, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:27,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:27,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (57)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:27,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:27,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:26:27,947 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:26:27,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash -442426585, now seen corresponding path program 1 times [2021-11-19 14:26:27,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:27,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283566696] [2021-11-19 14:26:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:27,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:27,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:27,951 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:27,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Waiting until timeout for monitored process [2021-11-19 14:26:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:30,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:26:30,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 382 proven. 57 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2021-11-19 14:26:32,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-11-19 14:26:35,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:35,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283566696] [2021-11-19 14:26:35,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283566696] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:26:35,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1967965252] [2021-11-19 14:26:35,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:35,212 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:35,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:26:35,212 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:26:35,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2021-11-19 14:26:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:36,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:26:36,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:42,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-19 14:26:42,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:45,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2021-11-19 14:26:45,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1967965252] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:26:45,409 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:26:45,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [10, 10] total 20 [2021-11-19 14:26:45,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567581746] [2021-11-19 14:26:45,410 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:26:45,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:26:45,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:26:45,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:26:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:26:45,411 INFO L87 Difference]: Start difference. First operand 3415 states and 4547 transitions. Second operand has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 3 states have call successors, (136), 3 states have call predecessors, (136), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2021-11-19 14:26:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:26:47,006 INFO L93 Difference]: Finished difference Result 6801 states and 9089 transitions. [2021-11-19 14:26:47,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:26:47,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 3 states have call successors, (136), 3 states have call predecessors, (136), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) Word has length 517 [2021-11-19 14:26:47,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:26:47,016 INFO L225 Difference]: With dead ends: 6801 [2021-11-19 14:26:47,016 INFO L226 Difference]: Without dead ends: 3405 [2021-11-19 14:26:47,023 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2064 GetRequests, 2046 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:26:47,024 INFO L933 BasicCegarLoop]: 1978 mSDtfsCounter, 2742 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 748 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2742 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 748 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:26:47,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2742 Valid, 1978 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [748 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-19 14:26:47,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2021-11-19 14:26:47,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3405. [2021-11-19 14:26:47,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3405 states, 2253 states have (on average 1.2046160674656015) internal successors, (2714), 2321 states have internal predecessors, (2714), 902 states have call successors, (902), 242 states have call predecessors, (902), 246 states have return successors, (914), 902 states have call predecessors, (914), 902 states have call successors, (914) [2021-11-19 14:26:47,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3405 states to 3405 states and 4530 transitions. [2021-11-19 14:26:47,608 INFO L78 Accepts]: Start accepts. Automaton has 3405 states and 4530 transitions. Word has length 517 [2021-11-19 14:26:47,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:26:47,609 INFO L470 AbstractCegarLoop]: Abstraction has 3405 states and 4530 transitions. [2021-11-19 14:26:47,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.0) internal successors, (380), 4 states have internal predecessors, (380), 3 states have call successors, (136), 3 states have call predecessors, (136), 2 states have return successors, (128), 3 states have call predecessors, (128), 3 states have call successors, (128) [2021-11-19 14:26:47,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3405 states and 4530 transitions. [2021-11-19 14:26:47,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2021-11-19 14:26:47,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:26:47,614 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:26:47,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (60)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:47,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2021-11-19 14:26:48,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:48,015 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:26:48,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:26:48,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1147206391, now seen corresponding path program 1 times [2021-11-19 14:26:48,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:26:48,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [763833064] [2021-11-19 14:26:48,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:48,017 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:26:48,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:26:48,018 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:26:48,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Waiting until timeout for monitored process [2021-11-19 14:26:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:50,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:26:50,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 415 proven. 57 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-19 14:26:52,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:26:55,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2021-11-19 14:26:55,380 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:26:55,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [763833064] [2021-11-19 14:26:55,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [763833064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:26:55,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1087827768] [2021-11-19 14:26:55,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:26:55,381 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:26:55,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:26:55,381 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:26:55,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2021-11-19 14:26:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:26:56,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:26:56,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:26:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 415 proven. 57 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2021-11-19 14:26:58,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1064 trivial. 0 not checked. [2021-11-19 14:27:00,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1087827768] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:00,404 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566198552] [2021-11-19 14:27:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:00,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:27:00,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:27:00,405 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:27:00,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-19 14:27:01,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:01,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 2340 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:27:01,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 1091 trivial. 0 not checked. [2021-11-19 14:27:03,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2021-11-19 14:27:04,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566198552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:04,569 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:27:04,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-19 14:27:04,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969506800] [2021-11-19 14:27:04,570 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:04,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:27:04,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:04,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:27:04,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:27:04,572 INFO L87 Difference]: Start difference. First operand 3405 states and 4530 transitions. Second operand has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:27:06,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:27:07,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:07,486 INFO L93 Difference]: Finished difference Result 3405 states and 4530 transitions. [2021-11-19 14:27:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:27:07,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 520 [2021-11-19 14:27:07,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:07,494 INFO L225 Difference]: With dead ends: 3405 [2021-11-19 14:27:07,495 INFO L226 Difference]: Without dead ends: 3403 [2021-11-19 14:27:07,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3116 GetRequests, 3093 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:27:07,496 INFO L933 BasicCegarLoop]: 2291 mSDtfsCounter, 904 mSDsluCounter, 8392 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 10683 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:07,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 10683 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:27:07,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3403 states. [2021-11-19 14:27:07,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3403 to 3403. [2021-11-19 14:27:07,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3403 states, 2252 states have (on average 1.2038188277087034) internal successors, (2711), 2319 states have internal predecessors, (2711), 902 states have call successors, (902), 242 states have call predecessors, (902), 246 states have return successors, (914), 902 states have call predecessors, (914), 902 states have call successors, (914) [2021-11-19 14:27:07,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3403 states to 3403 states and 4527 transitions. [2021-11-19 14:27:07,924 INFO L78 Accepts]: Start accepts. Automaton has 3403 states and 4527 transitions. Word has length 520 [2021-11-19 14:27:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:07,924 INFO L470 AbstractCegarLoop]: Abstraction has 3403 states and 4527 transitions. [2021-11-19 14:27:07,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.714285714285715) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (72), 4 states have call predecessors, (72), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2021-11-19 14:27:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3403 states and 4527 transitions. [2021-11-19 14:27:07,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2021-11-19 14:27:07,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:07,929 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:07,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:08,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (62)] Ended with exit code 0 [2021-11-19 14:27:08,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:08,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:27:08,543 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:27:08,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:08,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1434770879, now seen corresponding path program 1 times [2021-11-19 14:27:08,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:08,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175720682] [2021-11-19 14:27:08,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:08,546 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:08,547 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:08,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (65)] Waiting until timeout for monitored process [2021-11-19 14:27:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:10,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:10,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:13,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 374 proven. 57 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2021-11-19 14:27:13,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2021-11-19 14:27:15,771 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:15,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175720682] [2021-11-19 14:27:15,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175720682] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:15,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [688050592] [2021-11-19 14:27:15,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:15,772 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:27:15,773 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:27:15,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2021-11-19 14:27:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:17,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:17,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:19,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 374 proven. 57 refuted. 0 times theorem prover too weak. 636 trivial. 0 not checked. [2021-11-19 14:27:19,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2021-11-19 14:27:20,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [688050592] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:20,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966427589] [2021-11-19 14:27:20,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:20,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:27:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:27:20,838 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:27:20,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-19 14:27:21,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:22,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:27:22,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 313 proven. 0 refuted. 0 times theorem prover too weak. 754 trivial. 0 not checked. [2021-11-19 14:27:24,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 36 proven. 12 refuted. 0 times theorem prover too weak. 1019 trivial. 0 not checked. [2021-11-19 14:27:25,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966427589] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:27:25,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:27:25,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10, 10, 10, 6] total 23 [2021-11-19 14:27:25,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453519455] [2021-11-19 14:27:25,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:25,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:27:25,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:25,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:27:25,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:27:25,704 INFO L87 Difference]: Start difference. First operand 3403 states and 4527 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-19 14:27:28,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:28,095 INFO L93 Difference]: Finished difference Result 7392 states and 9897 transitions. [2021-11-19 14:27:28,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 14:27:28,096 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) Word has length 529 [2021-11-19 14:27:28,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:28,111 INFO L225 Difference]: With dead ends: 7392 [2021-11-19 14:27:28,111 INFO L226 Difference]: Without dead ends: 4007 [2021-11-19 14:27:28,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3171 GetRequests, 3148 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:27:28,118 INFO L933 BasicCegarLoop]: 2881 mSDtfsCounter, 532 mSDsluCounter, 10238 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 13119 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:28,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 13119 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-19 14:27:28,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2021-11-19 14:27:28,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3402. [2021-11-19 14:27:28,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 2252 states have (on average 1.2033747779751331) internal successors, (2710), 2318 states have internal predecessors, (2710), 901 states have call successors, (901), 242 states have call predecessors, (901), 246 states have return successors, (913), 902 states have call predecessors, (913), 901 states have call successors, (913) [2021-11-19 14:27:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 4524 transitions. [2021-11-19 14:27:28,524 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 4524 transitions. Word has length 529 [2021-11-19 14:27:28,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:28,525 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 4524 transitions. [2021-11-19 14:27:28,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 3 states have call successors, (69), 2 states have call predecessors, (69), 3 states have return successors, (65), 3 states have call predecessors, (65), 3 states have call successors, (65) [2021-11-19 14:27:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 4524 transitions. [2021-11-19 14:27:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2021-11-19 14:27:28,537 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:28,538 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 11, 11, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:28,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:28,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (65)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:28,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2021-11-19 14:27:29,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:29,139 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:27:29,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:29,139 INFO L85 PathProgramCache]: Analyzing trace with hash -671988055, now seen corresponding path program 1 times [2021-11-19 14:27:29,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:29,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290452428] [2021-11-19 14:27:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:29,142 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:29,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:29,142 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:29,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (68)] Waiting until timeout for monitored process [2021-11-19 14:27:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:32,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:32,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 360 proven. 57 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-11-19 14:27:36,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:39,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1695 trivial. 0 not checked. [2021-11-19 14:27:39,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:27:39,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290452428] [2021-11-19 14:27:39,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290452428] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:39,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [369209542] [2021-11-19 14:27:39,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:39,016 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:27:39,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:27:39,033 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:27:39,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2021-11-19 14:27:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:40,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:40,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:44,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 360 proven. 57 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-11-19 14:27:44,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1695 trivial. 0 not checked. [2021-11-19 14:27:46,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [369209542] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:27:46,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967405688] [2021-11-19 14:27:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:46,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:27:46,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:27:46,235 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:27:46,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-19 14:27:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:47,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:27:47,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:27:49,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2021-11-19 14:27:49,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:27:51,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1752 trivial. 0 not checked. [2021-11-19 14:27:51,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967405688] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:27:51,883 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:27:51,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10, 10, 10] total 24 [2021-11-19 14:27:51,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790308654] [2021-11-19 14:27:51,885 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:27:51,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:27:51,886 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:27:51,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:27:51,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:27:51,887 INFO L87 Difference]: Start difference. First operand 3402 states and 4524 transitions. Second operand has 8 states, 8 states have (on average 34.75) internal successors, (278), 6 states have internal predecessors, (278), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 4 states have call predecessors, (117), 2 states have call successors, (117) [2021-11-19 14:27:52,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:27:52,447 INFO L93 Difference]: Finished difference Result 6785 states and 9029 transitions. [2021-11-19 14:27:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:27:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.75) internal successors, (278), 6 states have internal predecessors, (278), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 4 states have call predecessors, (117), 2 states have call successors, (117) Word has length 770 [2021-11-19 14:27:52,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:27:52,457 INFO L225 Difference]: With dead ends: 6785 [2021-11-19 14:27:52,457 INFO L226 Difference]: Without dead ends: 3402 [2021-11-19 14:27:52,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4614 GetRequests, 4592 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:27:52,465 INFO L933 BasicCegarLoop]: 1979 mSDtfsCounter, 10 mSDsluCounter, 9864 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11843 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:27:52,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 11843 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:27:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2021-11-19 14:27:52,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 3402. [2021-11-19 14:27:52,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3402 states, 2252 states have (on average 1.2024866785079928) internal successors, (2708), 2318 states have internal predecessors, (2708), 901 states have call successors, (901), 242 states have call predecessors, (901), 246 states have return successors, (913), 902 states have call predecessors, (913), 901 states have call successors, (913) [2021-11-19 14:27:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3402 states to 3402 states and 4522 transitions. [2021-11-19 14:27:52,880 INFO L78 Accepts]: Start accepts. Automaton has 3402 states and 4522 transitions. Word has length 770 [2021-11-19 14:27:52,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:27:52,881 INFO L470 AbstractCegarLoop]: Abstraction has 3402 states and 4522 transitions. [2021-11-19 14:27:52,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.75) internal successors, (278), 6 states have internal predecessors, (278), 2 states have call successors, (116), 2 states have call predecessors, (116), 4 states have return successors, (117), 4 states have call predecessors, (117), 2 states have call successors, (117) [2021-11-19 14:27:52,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3402 states and 4522 transitions. [2021-11-19 14:27:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2021-11-19 14:27:52,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:27:52,895 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 11, 11, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:27:52,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (69)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:53,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:53,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (68)] Forceful destruction successful, exit code 0 [2021-11-19 14:27:53,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:27:53,508 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:27:53,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:27:53,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1256284647, now seen corresponding path program 1 times [2021-11-19 14:27:53,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:27:53,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57293260] [2021-11-19 14:27:53,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:27:53,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:27:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:27:53,513 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:27:53,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (71)] Waiting until timeout for monitored process [2021-11-19 14:27:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:27:56,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:27:56,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 360 proven. 57 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-11-19 14:28:00,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:03,342 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1695 trivial. 0 not checked. [2021-11-19 14:28:03,342 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:03,342 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57293260] [2021-11-19 14:28:03,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57293260] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:03,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [948904943] [2021-11-19 14:28:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:03,343 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:03,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:28:03,345 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:28:03,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2021-11-19 14:28:04,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:04,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:28:04,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 360 proven. 57 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-11-19 14:28:08,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:10,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1695 trivial. 0 not checked. [2021-11-19 14:28:10,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [948904943] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:10,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138283439] [2021-11-19 14:28:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:10,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:28:10,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:28:10,712 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:28:10,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-19 14:28:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:12,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 2997 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:28:12,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1710 trivial. 0 not checked. [2021-11-19 14:28:15,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1752 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 1710 trivial. 0 not checked. [2021-11-19 14:28:18,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138283439] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:28:18,354 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:28:18,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [10, 10, 10, 10] total 28 [2021-11-19 14:28:18,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546392322] [2021-11-19 14:28:18,356 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:18,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-19 14:28:18,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:18,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-19 14:28:18,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2021-11-19 14:28:18,358 INFO L87 Difference]: Start difference. First operand 3402 states and 4522 transitions. Second operand has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (111), 1 states have call predecessors, (111), 4 states have return successors, (111), 6 states have call predecessors, (111), 3 states have call successors, (111) [2021-11-19 14:28:21,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:21,961 INFO L93 Difference]: Finished difference Result 7117 states and 9499 transitions. [2021-11-19 14:28:21,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-19 14:28:21,961 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (111), 1 states have call predecessors, (111), 4 states have return successors, (111), 6 states have call predecessors, (111), 3 states have call successors, (111) Word has length 770 [2021-11-19 14:28:21,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:21,971 INFO L225 Difference]: With dead ends: 7117 [2021-11-19 14:28:21,971 INFO L226 Difference]: Without dead ends: 3732 [2021-11-19 14:28:21,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4619 GetRequests, 4589 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=119, Invalid=873, Unknown=0, NotChecked=0, Total=992 [2021-11-19 14:28:21,979 INFO L933 BasicCegarLoop]: 2209 mSDtfsCounter, 656 mSDsluCounter, 19170 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 21379 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:21,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [702 Valid, 21379 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-19 14:28:21,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3732 states. [2021-11-19 14:28:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3732 to 3396. [2021-11-19 14:28:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3396 states, 2252 states have (on average 1.2007104795737122) internal successors, (2704), 2314 states have internal predecessors, (2704), 895 states have call successors, (895), 242 states have call predecessors, (895), 246 states have return successors, (907), 896 states have call predecessors, (907), 895 states have call successors, (907) [2021-11-19 14:28:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3396 states to 3396 states and 4506 transitions. [2021-11-19 14:28:22,419 INFO L78 Accepts]: Start accepts. Automaton has 3396 states and 4506 transitions. Word has length 770 [2021-11-19 14:28:22,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:22,420 INFO L470 AbstractCegarLoop]: Abstraction has 3396 states and 4506 transitions. [2021-11-19 14:28:22,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.333333333333332) internal successors, (268), 10 states have internal predecessors, (268), 3 states have call successors, (111), 1 states have call predecessors, (111), 4 states have return successors, (111), 6 states have call predecessors, (111), 3 states have call successors, (111) [2021-11-19 14:28:22,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3396 states and 4506 transitions. [2021-11-19 14:28:22,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2021-11-19 14:28:22,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:22,432 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:22,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-11-19 14:28:22,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (71)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:22,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:23,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:23,039 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:28:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:23,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1339624338, now seen corresponding path program 1 times [2021-11-19 14:28:23,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:23,042 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972971518] [2021-11-19 14:28:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:23,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:23,043 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:23,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (74)] Waiting until timeout for monitored process [2021-11-19 14:28:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:25,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:28:25,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-19 14:28:30,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1935 trivial. 0 not checked. [2021-11-19 14:28:33,171 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:28:33,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972971518] [2021-11-19 14:28:33,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972971518] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:33,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1243286336] [2021-11-19 14:28:33,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:33,171 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:28:33,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:28:33,172 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:28:33,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2021-11-19 14:28:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:34,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:28:34,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:38,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-19 14:28:38,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:40,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1935 trivial. 0 not checked. [2021-11-19 14:28:40,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1243286336] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:28:40,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505391273] [2021-11-19 14:28:40,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:40,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:28:40,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:28:40,946 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:28:40,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-11-19 14:28:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:42,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:28:42,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:46,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 718 proven. 0 refuted. 0 times theorem prover too weak. 1274 trivial. 0 not checked. [2021-11-19 14:28:46,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:28:48,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-11-19 14:28:48,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505391273] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:28:48,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2021-11-19 14:28:48,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 10, 10, 10, 5] total 24 [2021-11-19 14:28:48,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906296874] [2021-11-19 14:28:48,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:28:48,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:28:48,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:28:48,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:28:48,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:28:48,890 INFO L87 Difference]: Start difference. First operand 3396 states and 4506 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (122), 2 states have call predecessors, (122), 3 states have return successors, (120), 3 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-19 14:28:49,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:28:49,421 INFO L93 Difference]: Finished difference Result 6781 states and 9010 transitions. [2021-11-19 14:28:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:28:49,422 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (122), 2 states have call predecessors, (122), 3 states have return successors, (120), 3 states have call predecessors, (120), 2 states have call successors, (120) Word has length 801 [2021-11-19 14:28:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:28:49,432 INFO L225 Difference]: With dead ends: 6781 [2021-11-19 14:28:49,432 INFO L226 Difference]: Without dead ends: 3404 [2021-11-19 14:28:49,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4800 GetRequests, 4778 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:28:49,439 INFO L933 BasicCegarLoop]: 1969 mSDtfsCounter, 0 mSDsluCounter, 5903 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7872 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:28:49,440 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 7872 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:28:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2021-11-19 14:28:49,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3404. [2021-11-19 14:28:49,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 2258 states have (on average 1.200177147918512) internal successors, (2710), 2320 states have internal predecessors, (2710), 895 states have call successors, (895), 242 states have call predecessors, (895), 248 states have return successors, (911), 898 states have call predecessors, (911), 895 states have call successors, (911) [2021-11-19 14:28:49,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4516 transitions. [2021-11-19 14:28:49,887 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4516 transitions. Word has length 801 [2021-11-19 14:28:49,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:28:49,888 INFO L470 AbstractCegarLoop]: Abstraction has 3404 states and 4516 transitions. [2021-11-19 14:28:49,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 4 states have internal predecessors, (308), 2 states have call successors, (122), 2 states have call predecessors, (122), 3 states have return successors, (120), 3 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-19 14:28:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4516 transitions. [2021-11-19 14:28:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2021-11-19 14:28:49,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:28:49,900 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:28:49,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:50,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (75)] Forceful destruction successful, exit code 0 [2021-11-19 14:28:50,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (74)] Ended with exit code 0 [2021-11-19 14:28:50,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:28:50,501 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:28:50,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:28:50,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1398404169, now seen corresponding path program 1 times [2021-11-19 14:28:50,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:28:50,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2015663920] [2021-11-19 14:28:50,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:28:50,504 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:28:50,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:28:50,504 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:28:50,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (77)] Waiting until timeout for monitored process [2021-11-19 14:28:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:28:53,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 3159 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:28:53,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:28:58,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-19 14:28:58,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:01,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1935 trivial. 0 not checked. [2021-11-19 14:29:01,362 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:01,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2015663920] [2021-11-19 14:29:01,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2015663920] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:01,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [641595177] [2021-11-19 14:29:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:01,363 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:01,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:29:01,363 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:29:01,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2021-11-19 14:29:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:02,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 3159 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:29:02,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:06,479 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 716 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2021-11-19 14:29:06,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1987 trivial. 0 not checked. [2021-11-19 14:29:08,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [641595177] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:29:08,533 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:29:08,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 10, 5] total 21 [2021-11-19 14:29:08,534 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487339206] [2021-11-19 14:29:08,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:08,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 14:29:08,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:08,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 14:29:08,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:29:08,536 INFO L87 Difference]: Start difference. First operand 3404 states and 4516 transitions. Second operand has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-19 14:29:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:09,270 INFO L93 Difference]: Finished difference Result 6803 states and 9046 transitions. [2021-11-19 14:29:09,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:29:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) Word has length 811 [2021-11-19 14:29:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:09,280 INFO L225 Difference]: With dead ends: 6803 [2021-11-19 14:29:09,280 INFO L226 Difference]: Without dead ends: 3418 [2021-11-19 14:29:09,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3241 GetRequests, 3221 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2021-11-19 14:29:09,288 INFO L933 BasicCegarLoop]: 1968 mSDtfsCounter, 6 mSDsluCounter, 5899 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7867 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:09,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 7867 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:29:09,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2021-11-19 14:29:09,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 3410. [2021-11-19 14:29:09,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 2264 states have (on average 1.1996466431095407) internal successors, (2716), 2326 states have internal predecessors, (2716), 895 states have call successors, (895), 242 states have call predecessors, (895), 248 states have return successors, (911), 898 states have call predecessors, (911), 895 states have call successors, (911) [2021-11-19 14:29:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 4522 transitions. [2021-11-19 14:29:09,676 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 4522 transitions. Word has length 811 [2021-11-19 14:29:09,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:09,677 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 4522 transitions. [2021-11-19 14:29:09,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.4) internal successors, (317), 5 states have internal predecessors, (317), 2 states have call successors, (122), 2 states have call predecessors, (122), 2 states have return successors, (120), 2 states have call predecessors, (120), 2 states have call successors, (120) [2021-11-19 14:29:09,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 4522 transitions. [2021-11-19 14:29:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 812 [2021-11-19 14:29:09,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:09,690 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:09,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (78)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:09,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (77)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:10,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:29:10,091 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:29:10,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:10,092 INFO L85 PathProgramCache]: Analyzing trace with hash -2056325237, now seen corresponding path program 1 times [2021-11-19 14:29:10,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:10,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91078964] [2021-11-19 14:29:10,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:10,095 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:10,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:10,096 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:10,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (79)] Waiting until timeout for monitored process [2021-11-19 14:29:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:13,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:29:13,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:17,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-19 14:29:17,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1935 trivial. 0 not checked. [2021-11-19 14:29:20,923 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:20,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91078964] [2021-11-19 14:29:20,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91078964] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:20,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1967605161] [2021-11-19 14:29:20,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:20,924 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:20,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:29:20,924 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:29:20,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2021-11-19 14:29:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:22,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:29:22,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-19 14:29:26,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1935 trivial. 0 not checked. [2021-11-19 14:29:29,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1967605161] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:29,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448698722] [2021-11-19 14:29:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:29,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:29:29,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:29:29,061 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:29:29,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-19 14:29:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:30,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 3163 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:29:30,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2021-11-19 14:29:34,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:37,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1992 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1990 trivial. 0 not checked. [2021-11-19 14:29:37,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448698722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:29:37,367 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:29:37,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10, 10, 10] total 24 [2021-11-19 14:29:37,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933022830] [2021-11-19 14:29:37,369 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:29:37,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:29:37,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:29:37,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:29:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:29:37,370 INFO L87 Difference]: Start difference. First operand 3410 states and 4522 transitions. Second operand has 8 states, 8 states have (on average 44.375) internal successors, (355), 6 states have internal predecessors, (355), 2 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (170), 4 states have call predecessors, (170), 2 states have call successors, (170) [2021-11-19 14:29:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:29:37,965 INFO L93 Difference]: Finished difference Result 6805 states and 9036 transitions. [2021-11-19 14:29:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:29:37,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 6 states have internal predecessors, (355), 2 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (170), 4 states have call predecessors, (170), 2 states have call successors, (170) Word has length 811 [2021-11-19 14:29:37,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:29:37,978 INFO L225 Difference]: With dead ends: 6805 [2021-11-19 14:29:37,978 INFO L226 Difference]: Without dead ends: 3414 [2021-11-19 14:29:37,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4860 GetRequests, 4838 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:29:37,991 INFO L933 BasicCegarLoop]: 1969 mSDtfsCounter, 0 mSDsluCounter, 7869 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9838 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:29:37,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9838 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:29:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3414 states. [2021-11-19 14:29:38,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3414 to 3414. [2021-11-19 14:29:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3414 states, 2268 states have (on average 1.199294532627866) internal successors, (2720), 2328 states have internal predecessors, (2720), 895 states have call successors, (895), 242 states have call predecessors, (895), 248 states have return successors, (911), 900 states have call predecessors, (911), 895 states have call successors, (911) [2021-11-19 14:29:38,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3414 states to 3414 states and 4526 transitions. [2021-11-19 14:29:38,383 INFO L78 Accepts]: Start accepts. Automaton has 3414 states and 4526 transitions. Word has length 811 [2021-11-19 14:29:38,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:29:38,384 INFO L470 AbstractCegarLoop]: Abstraction has 3414 states and 4526 transitions. [2021-11-19 14:29:38,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 44.375) internal successors, (355), 6 states have internal predecessors, (355), 2 states have call successors, (171), 2 states have call predecessors, (171), 4 states have return successors, (170), 4 states have call predecessors, (170), 2 states have call successors, (170) [2021-11-19 14:29:38,384 INFO L276 IsEmpty]: Start isEmpty. Operand 3414 states and 4526 transitions. [2021-11-19 14:29:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2021-11-19 14:29:38,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:29:38,454 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:29:38,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (79)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:38,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:38,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-11-19 14:29:39,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:29:39,057 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:29:39,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:29:39,058 INFO L85 PathProgramCache]: Analyzing trace with hash 262089988, now seen corresponding path program 1 times [2021-11-19 14:29:39,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:29:39,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036433305] [2021-11-19 14:29:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:39,061 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:29:39,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:29:39,062 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:29:39,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (82)] Waiting until timeout for monitored process [2021-11-19 14:29:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:42,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:29:42,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:47,506 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-19 14:29:47,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:50,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-11-19 14:29:50,844 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:29:50,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036433305] [2021-11-19 14:29:50,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1036433305] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:50,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2071531358] [2021-11-19 14:29:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:50,845 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:29:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:29:50,846 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:29:50,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2021-11-19 14:29:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:29:52,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:29:52,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:29:57,058 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-19 14:29:57,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:29:59,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-11-19 14:29:59,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2071531358] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:29:59,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528180422] [2021-11-19 14:29:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:29:59,703 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:29:59,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:29:59,726 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:29:59,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-19 14:30:01,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:01,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 3228 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:30:01,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:13,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-19 14:30:13,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:17,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-19 14:30:17,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528180422] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:17,205 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:30:17,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [10, 10, 10, 10] total 23 [2021-11-19 14:30:17,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325457721] [2021-11-19 14:30:17,207 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:17,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:30:17,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:17,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:30:17,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-11-19 14:30:17,210 INFO L87 Difference]: Start difference. First operand 3414 states and 4526 transitions. Second operand has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (231), 4 states have call predecessors, (231), 2 states have return successors, (228), 2 states have call predecessors, (228), 2 states have call successors, (228) [2021-11-19 14:30:18,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:18,147 INFO L93 Difference]: Finished difference Result 3414 states and 4526 transitions. [2021-11-19 14:30:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:30:18,148 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (231), 4 states have call predecessors, (231), 2 states have return successors, (228), 2 states have call predecessors, (228), 2 states have call successors, (228) Word has length 821 [2021-11-19 14:30:18,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:18,159 INFO L225 Difference]: With dead ends: 3414 [2021-11-19 14:30:18,159 INFO L226 Difference]: Without dead ends: 3412 [2021-11-19 14:30:18,161 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4922 GetRequests, 4899 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2021-11-19 14:30:18,162 INFO L933 BasicCegarLoop]: 1966 mSDtfsCounter, 1448 mSDsluCounter, 5920 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 7886 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:18,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 7886 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:30:18,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2021-11-19 14:30:18,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 3412. [2021-11-19 14:30:18,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3412 states, 2267 states have (on average 1.1985002205558006) internal successors, (2717), 2326 states have internal predecessors, (2717), 895 states have call successors, (895), 242 states have call predecessors, (895), 248 states have return successors, (911), 900 states have call predecessors, (911), 895 states have call successors, (911) [2021-11-19 14:30:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3412 states to 3412 states and 4523 transitions. [2021-11-19 14:30:18,737 INFO L78 Accepts]: Start accepts. Automaton has 3412 states and 4523 transitions. Word has length 821 [2021-11-19 14:30:18,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:18,739 INFO L470 AbstractCegarLoop]: Abstraction has 3412 states and 4523 transitions. [2021-11-19 14:30:18,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 65.42857142857143) internal successors, (458), 5 states have internal predecessors, (458), 2 states have call successors, (231), 4 states have call predecessors, (231), 2 states have return successors, (228), 2 states have call predecessors, (228), 2 states have call successors, (228) [2021-11-19 14:30:18,739 INFO L276 IsEmpty]: Start isEmpty. Operand 3412 states and 4523 transitions. [2021-11-19 14:30:18,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2021-11-19 14:30:18,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:18,755 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:18,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-11-19 14:30:18,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (83)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:19,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (82)] Ended with exit code 0 [2021-11-19 14:30:19,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:30:19,356 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:30:19,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:19,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1386109088, now seen corresponding path program 1 times [2021-11-19 14:30:19,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:19,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731917344] [2021-11-19 14:30:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:19,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:19,361 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:19,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (85)] Waiting until timeout for monitored process [2021-11-19 14:30:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:22,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 3257 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:30:22,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-19 14:30:28,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:31,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-11-19 14:30:31,805 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:30:31,805 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731917344] [2021-11-19 14:30:31,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731917344] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:31,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1204088726] [2021-11-19 14:30:31,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:31,806 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:30:31,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:30:31,810 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:30:31,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (86)] Waiting until timeout for monitored process [2021-11-19 14:30:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:33,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 3257 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:30:33,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:38,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 527 proven. 57 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2021-11-19 14:30:38,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1945 trivial. 0 not checked. [2021-11-19 14:30:40,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1204088726] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:30:40,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468843285] [2021-11-19 14:30:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:40,942 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:40,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:40,943 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:30:40,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-19 14:30:42,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:42,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 3257 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:30:42,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:44,600 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-19 14:30:44,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:47,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2002 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2021-11-19 14:30:47,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468843285] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:47,372 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:30:47,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [10, 10, 10, 10] total 24 [2021-11-19 14:30:47,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067950411] [2021-11-19 14:30:47,375 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:47,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 14:30:47,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:30:47,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 14:30:47,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-11-19 14:30:47,377 INFO L87 Difference]: Start difference. First operand 3412 states and 4523 transitions. Second operand has 8 states, 8 states have (on average 36.125) internal successors, (289), 6 states have internal predecessors, (289), 3 states have call successors, (120), 5 states have call predecessors, (120), 3 states have return successors, (117), 3 states have call predecessors, (117), 1 states have call successors, (117) [2021-11-19 14:30:49,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:51,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:30:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:52,504 INFO L93 Difference]: Finished difference Result 3412 states and 4523 transitions. [2021-11-19 14:30:52,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 14:30:52,505 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 6 states have internal predecessors, (289), 3 states have call successors, (120), 5 states have call predecessors, (120), 3 states have return successors, (117), 3 states have call predecessors, (117), 1 states have call successors, (117) Word has length 833 [2021-11-19 14:30:52,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:52,517 INFO L225 Difference]: With dead ends: 3412 [2021-11-19 14:30:52,517 INFO L226 Difference]: Without dead ends: 3410 [2021-11-19 14:30:52,519 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4994 GetRequests, 4970 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:30:52,520 INFO L933 BasicCegarLoop]: 1964 mSDtfsCounter, 22 mSDsluCounter, 11730 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 13694 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:52,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 13694 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2021-11-19 14:30:52,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2021-11-19 14:30:53,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3410. [2021-11-19 14:30:53,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3410 states, 2266 states have (on average 1.1977052074139454) internal successors, (2714), 2324 states have internal predecessors, (2714), 895 states have call successors, (895), 242 states have call predecessors, (895), 248 states have return successors, (911), 900 states have call predecessors, (911), 895 states have call successors, (911) [2021-11-19 14:30:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3410 states to 3410 states and 4520 transitions. [2021-11-19 14:30:53,086 INFO L78 Accepts]: Start accepts. Automaton has 3410 states and 4520 transitions. Word has length 833 [2021-11-19 14:30:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:53,087 INFO L470 AbstractCegarLoop]: Abstraction has 3410 states and 4520 transitions. [2021-11-19 14:30:53,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 36.125) internal successors, (289), 6 states have internal predecessors, (289), 3 states have call successors, (120), 5 states have call predecessors, (120), 3 states have return successors, (117), 3 states have call predecessors, (117), 1 states have call successors, (117) [2021-11-19 14:30:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3410 states and 4520 transitions. [2021-11-19 14:30:53,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2021-11-19 14:30:53,101 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:53,102 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 17, 14, 14, 14, 14, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:53,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (86)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:53,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (85)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:53,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-11-19 14:30:53,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:53,719 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:30:53,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:53,720 INFO L85 PathProgramCache]: Analyzing trace with hash 736338225, now seen corresponding path program 1 times [2021-11-19 14:30:53,723 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:30:53,723 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963817785] [2021-11-19 14:30:53,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:53,723 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:30:53,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:30:53,724 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:30:53,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (88)] Waiting until timeout for monitored process [2021-11-19 14:30:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:57,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 3210 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:30:57,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:02,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 518 proven. 57 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2021-11-19 14:31:02,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2021-11-19 14:31:06,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:31:06,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963817785] [2021-11-19 14:31:06,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963817785] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:06,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915187557] [2021-11-19 14:31:06,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:06,122 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:31:06,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:31:06,143 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:31:06,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (89)] Waiting until timeout for monitored process [2021-11-19 14:31:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:08,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 3210 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:31:08,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:12,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 518 proven. 57 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2021-11-19 14:31:12,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:15,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 1903 trivial. 0 not checked. [2021-11-19 14:31:15,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915187557] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:15,442 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757752861] [2021-11-19 14:31:15,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:15,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:31:15,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:31:15,443 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:31:15,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-19 14:31:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:17,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 3210 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:31:17,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 1221 trivial. 0 not checked. [2021-11-19 14:31:22,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1960 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1960 trivial. 0 not checked. [2021-11-19 14:31:24,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757752861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:31:24,520 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:31:24,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10, 10, 10, 10] total 20 [2021-11-19 14:31:24,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963418122] [2021-11-19 14:31:24,522 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:31:24,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:31:24,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:31:24,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:31:24,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:31:24,523 INFO L87 Difference]: Start difference. First operand 3410 states and 4520 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-19 14:31:26,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:31:26,040 INFO L93 Difference]: Finished difference Result 7803 states and 10434 transitions. [2021-11-19 14:31:26,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:31:26,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) Word has length 832 [2021-11-19 14:31:26,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:31:26,054 INFO L225 Difference]: With dead ends: 7803 [2021-11-19 14:31:26,055 INFO L226 Difference]: Without dead ends: 4412 [2021-11-19 14:31:26,061 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4986 GetRequests, 4968 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-11-19 14:31:26,062 INFO L933 BasicCegarLoop]: 2316 mSDtfsCounter, 542 mSDsluCounter, 4123 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 6439 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 14:31:26,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 6439 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 14:31:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2021-11-19 14:31:26,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 3416. [2021-11-19 14:31:26,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3416 states, 2271 states have (on average 1.197710259797446) internal successors, (2720), 2329 states have internal predecessors, (2720), 896 states have call successors, (896), 242 states have call predecessors, (896), 248 states have return successors, (912), 901 states have call predecessors, (912), 896 states have call successors, (912) [2021-11-19 14:31:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3416 states to 3416 states and 4528 transitions. [2021-11-19 14:31:26,554 INFO L78 Accepts]: Start accepts. Automaton has 3416 states and 4528 transitions. Word has length 832 [2021-11-19 14:31:26,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:31:26,555 INFO L470 AbstractCegarLoop]: Abstraction has 3416 states and 4528 transitions. [2021-11-19 14:31:26,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 2 states have call successors, (185), 2 states have call predecessors, (185), 2 states have return successors, (185), 2 states have call predecessors, (185), 2 states have call successors, (185) [2021-11-19 14:31:26,555 INFO L276 IsEmpty]: Start isEmpty. Operand 3416 states and 4528 transitions. [2021-11-19 14:31:26,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1027 [2021-11-19 14:31:26,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:31:26,569 INFO L514 BasicCegarLoop]: trace histogram [19, 19, 17, 17, 17, 17, 17, 15, 15, 14, 14, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:31:26,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Forceful destruction successful, exit code 0 [2021-11-19 14:31:26,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (89)] Forceful destruction successful, exit code 0 [2021-11-19 14:31:27,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (88)] Ended with exit code 0 [2021-11-19 14:31:27,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:31:27,170 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 27 more)] === [2021-11-19 14:31:27,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:31:27,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1787989960, now seen corresponding path program 1 times [2021-11-19 14:31:27,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:31:27,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [57336397] [2021-11-19 14:31:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:27,174 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:31:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:31:27,175 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:31:27,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (91)] Waiting until timeout for monitored process [2021-11-19 14:31:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:30,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 3700 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:31:30,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:37,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 712 proven. 57 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-19 14:31:37,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 3033 trivial. 0 not checked. [2021-11-19 14:31:41,867 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:31:41,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [57336397] [2021-11-19 14:31:41,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [57336397] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:41,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [938107301] [2021-11-19 14:31:41,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:41,868 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:31:41,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:31:41,868 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:31:41,875 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (92)] Waiting until timeout for monitored process [2021-11-19 14:31:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:43,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 3700 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-19 14:31:43,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:31:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 712 proven. 57 refuted. 0 times theorem prover too weak. 2321 trivial. 0 not checked. [2021-11-19 14:31:50,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:31:53,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 3033 trivial. 0 not checked. [2021-11-19 14:31:53,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [938107301] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:31:53,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059820538] [2021-11-19 14:31:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:53,758 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:31:53,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:31:53,759 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:31:53,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a713348-05af-4b4e-b109-4d2f3dee9a6f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-11-19 14:31:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:31:55,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 3700 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:31:55,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:32:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 1007 proven. 0 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked. [2021-11-19 14:32:00,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:32:03,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3090 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3090 trivial. 0 not checked. [2021-11-19 14:32:03,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059820538] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:32:03,825 INFO L186 FreeRefinementEngine]: Found 2 perfect and 4 imperfect interpolant sequences. [2021-11-19 14:32:03,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [10, 10, 10, 10] total 26 [2021-11-19 14:32:03,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975908675] [2021-11-19 14:32:03,827 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:32:03,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-19 14:32:03,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:32:03,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-19 14:32:03,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=550, Unknown=0, NotChecked=0, Total=650 [2021-11-19 14:32:03,830 INFO L87 Difference]: Start difference. First operand 3416 states and 4528 transitions. Second operand has 10 states, 10 states have (on average 45.1) internal successors, (451), 10 states have internal predecessors, (451), 4 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 4 states have call predecessors, (203), 4 states have call successors, (203)