./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--dec--tulip--dmfe.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7 --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 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:23:44,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:23:44,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:23:44,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:23:44,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:23:44,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:23:44,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:23:44,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:23:44,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:23:44,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:23:44,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:23:44,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:23:44,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:23:44,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:23:44,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:23:44,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:23:44,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:23:44,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:23:44,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:23:44,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:23:44,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:23:44,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:23:44,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:23:44,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:23:44,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:23:44,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:23:44,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:23:44,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:23:44,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:23:44,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:23:44,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:23:44,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:23:44,369 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:23:44,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:23:44,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:23:44,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:23:44,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:23:44,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:23:44,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:23:44,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:23:44,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:23:44,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:23:44,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:23:44,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:23:44,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:23:44,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:23:44,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:23:44,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:23:44,435 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:23:44,435 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:23:44,435 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:23:44,435 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:23:44,436 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:23:44,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:23:44,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:23:44,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:23:44,437 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:23:44,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:23:44,438 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:23:44,438 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:23:44,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:23:44,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:23:44,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:23:44,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:23:44,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:23:44,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:23:44,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:23:44,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:23:44,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:23:44,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:23:44,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:23:44,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:23:44,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:23:44,443 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:23:44,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:23:44,443 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:23:44,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:23:44,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:23:44,444 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:23:44,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:23:44,444 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112291a0afbd95f38753698288bc21e678f8fc599868e66751c5bf984ca2e210 [2021-11-25 20:23:44,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:23:44,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:23:44,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:23:44,772 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:23:44,773 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:23:44,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-25 20:23:44,837 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/data/226e5b3f3/3b90ad240b1b4d2bb2165a8ea236fa36/FLAG26f3a005f [2021-11-25 20:23:45,805 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:23:45,806 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-25 20:23:45,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/data/226e5b3f3/3b90ad240b1b4d2bb2165a8ea236fa36/FLAG26f3a005f [2021-11-25 20:23:46,306 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/data/226e5b3f3/3b90ad240b1b4d2bb2165a8ea236fa36 [2021-11-25 20:23:46,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:23:46,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:23:46,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:23:46,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:23:46,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:23:46,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:23:46" (1/1) ... [2021-11-25 20:23:46,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219d934c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:46, skipping insertion in model container [2021-11-25 20:23:46,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:23:46" (1/1) ... [2021-11-25 20:23:46,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:23:46,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:23:50,577 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-25 20:23:50,580 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-25 20:23:50,588 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-25 20:23:50,589 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-25 20:23:50,595 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-25 20:23:50,596 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-25 20:23:50,597 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-25 20:23:50,597 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-25 20:23:50,598 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-25 20:23:50,598 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-25 20:23:50,599 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-25 20:23:50,600 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-25 20:23:50,600 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-25 20:23:50,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-25 20:23:50,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-25 20:23:50,602 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-25 20:23:50,603 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-25 20:23:50,603 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-25 20:23:50,604 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-25 20:23:50,605 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-25 20:23:50,606 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-25 20:23:50,606 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-25 20:23:50,607 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-25 20:23:50,608 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-25 20:23:50,609 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-25 20:23:50,614 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-25 20:23:50,615 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-25 20:23:50,616 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-25 20:23:50,616 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-25 20:23:50,617 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-25 20:23:50,618 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-25 20:23:50,618 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-25 20:23:50,619 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-25 20:23:50,619 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-25 20:23:50,620 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-25 20:23:50,620 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-25 20:23:50,620 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-25 20:23:50,621 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-25 20:23:50,621 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-25 20:23:50,622 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-25 20:23:50,622 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-25 20:23:50,623 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-25 20:23:50,623 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-25 20:23:50,623 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-25 20:23:50,624 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-25 20:23:50,624 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-25 20:23:50,625 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-25 20:23:50,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-25 20:23:50,627 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-25 20:23:50,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-25 20:23:50,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-25 20:23:50,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-25 20:23:50,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-25 20:23:50,629 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-25 20:23:50,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-25 20:23:50,630 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-25 20:23:50,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-25 20:23:50,631 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-25 20:23:50,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-25 20:23:50,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-25 20:23:50,633 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-25 20:23:50,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-25 20:23:50,634 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-25 20:23:50,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-25 20:23:50,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-25 20:23:50,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-25 20:23:50,637 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-25 20:23:50,637 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-25 20:23:50,638 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-25 20:23:50,638 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-25 20:23:50,638 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-25 20:23:50,639 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-25 20:23:50,640 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-25 20:23:50,640 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-25 20:23:50,640 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-25 20:23:50,641 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-25 20:23:50,641 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-25 20:23:50,642 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-25 20:23:50,642 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-25 20:23:50,643 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-25 20:23:50,643 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-25 20:23:50,643 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-25 20:23:50,644 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-25 20:23:50,644 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-25 20:23:50,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-25 20:23:50,646 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-25 20:23:50,647 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-25 20:23:50,648 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_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-25 20:23:50,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:23:50,745 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:23:51,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399219,399232] [2021-11-25 20:23:51,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399364,399377] [2021-11-25 20:23:51,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399510,399523] [2021-11-25 20:23:51,222 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399675,399688] [2021-11-25 20:23:51,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399833,399846] [2021-11-25 20:23:51,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[399991,400004] [2021-11-25 20:23:51,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400149,400162] [2021-11-25 20:23:51,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400309,400322] [2021-11-25 20:23:51,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400468,400481] [2021-11-25 20:23:51,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400607,400620] [2021-11-25 20:23:51,225 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400749,400762] [2021-11-25 20:23:51,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[400898,400911] [2021-11-25 20:23:51,226 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401037,401050] [2021-11-25 20:23:51,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401192,401205] [2021-11-25 20:23:51,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401352,401365] [2021-11-25 20:23:51,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401503,401516] [2021-11-25 20:23:51,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401654,401667] [2021-11-25 20:23:51,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401806,401819] [2021-11-25 20:23:51,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[401955,401968] [2021-11-25 20:23:51,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402103,402116] [2021-11-25 20:23:51,229 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402260,402273] [2021-11-25 20:23:51,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402409,402422] [2021-11-25 20:23:51,230 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402565,402578] [2021-11-25 20:23:51,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402718,402731] [2021-11-25 20:23:51,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[402864,402877] [2021-11-25 20:23:51,231 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403007,403020] [2021-11-25 20:23:51,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403159,403172] [2021-11-25 20:23:51,232 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403305,403318] [2021-11-25 20:23:51,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403450,403463] [2021-11-25 20:23:51,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403604,403617] [2021-11-25 20:23:51,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403755,403768] [2021-11-25 20:23:51,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[403910,403923] [2021-11-25 20:23:51,234 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404062,404075] [2021-11-25 20:23:51,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404217,404230] [2021-11-25 20:23:51,235 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404381,404394] [2021-11-25 20:23:51,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404537,404550] [2021-11-25 20:23:51,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404701,404714] [2021-11-25 20:23:51,236 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[404843,404856] [2021-11-25 20:23:51,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405001,405014] [2021-11-25 20:23:51,237 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405168,405181] [2021-11-25 20:23:51,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405327,405340] [2021-11-25 20:23:51,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405486,405499] [2021-11-25 20:23:51,238 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405635,405648] [2021-11-25 20:23:51,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405782,405795] [2021-11-25 20:23:51,239 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[405921,405934] [2021-11-25 20:23:51,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406084,406097] [2021-11-25 20:23:51,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406250,406263] [2021-11-25 20:23:51,240 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406414,406427] [2021-11-25 20:23:51,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406579,406592] [2021-11-25 20:23:51,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406744,406757] [2021-11-25 20:23:51,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[406910,406923] [2021-11-25 20:23:51,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407075,407088] [2021-11-25 20:23:51,242 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407242,407255] [2021-11-25 20:23:51,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407402,407415] [2021-11-25 20:23:51,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407564,407577] [2021-11-25 20:23:51,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407723,407736] [2021-11-25 20:23:51,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[407869,407882] [2021-11-25 20:23:51,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408012,408025] [2021-11-25 20:23:51,246 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408156,408169] [2021-11-25 20:23:51,247 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408299,408312] [2021-11-25 20:23:51,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408443,408456] [2021-11-25 20:23:51,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408584,408597] [2021-11-25 20:23:51,250 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408722,408735] [2021-11-25 20:23:51,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[408880,408893] [2021-11-25 20:23:51,251 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409039,409052] [2021-11-25 20:23:51,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409195,409208] [2021-11-25 20:23:51,257 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409344,409357] [2021-11-25 20:23:51,258 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409496,409509] [2021-11-25 20:23:51,259 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409647,409660] [2021-11-25 20:23:51,262 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409796,409809] [2021-11-25 20:23:51,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[409948,409961] [2021-11-25 20:23:51,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410096,410109] [2021-11-25 20:23:51,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410249,410262] [2021-11-25 20:23:51,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410400,410413] [2021-11-25 20:23:51,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410550,410563] [2021-11-25 20:23:51,265 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410697,410710] [2021-11-25 20:23:51,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410848,410861] [2021-11-25 20:23:51,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[410999,411012] [2021-11-25 20:23:51,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411147,411160] [2021-11-25 20:23:51,268 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411313,411326] [2021-11-25 20:23:51,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411482,411495] [2021-11-25 20:23:51,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411649,411662] [2021-11-25 20:23:51,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411817,411830] [2021-11-25 20:23:51,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[411967,411980] [2021-11-25 20:23:51,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412114,412127] [2021-11-25 20:23:51,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412275,412288] [2021-11-25 20:23:51,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412445,412458] [2021-11-25 20:23:51,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i[412607,412620] [2021-11-25 20:23:51,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:23:51,586 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:23:51,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51 WrapperNode [2021-11-25 20:23:51,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:23:51,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:23:51,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:23:51,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:23:51,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:51,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:51,980 INFO L137 Inliner]: procedures = 636, calls = 2220, calls flagged for inlining = 287, calls inlined = 204, statements flattened = 5086 [2021-11-25 20:23:51,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:23:51,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:23:51,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:23:51,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:23:51,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:51,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:23:52,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:23:52,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:23:52,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:23:52,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (1/1) ... [2021-11-25 20:23:52,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:23:52,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:23:52,315 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:23:52,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:23:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:23:52,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 20:23:52,363 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 20:23:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 20:23:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:23:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:23:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2021-11-25 20:23:52,364 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2021-11-25 20:23:52,364 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 20:23:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 20:23:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:23:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:23:52,365 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2021-11-25 20:23:52,365 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2021-11-25 20:23:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:23:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 20:23:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:23:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 20:23:52,366 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2021-11-25 20:23:52,366 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2021-11-25 20:23:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-25 20:23:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-25 20:23:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:23:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:23:52,367 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2021-11-25 20:23:52,367 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2021-11-25 20:23:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2021-11-25 20:23:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2021-11-25 20:23:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:23:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 20:23:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:23:52,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 20:23:52,368 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 20:23:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 20:23:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 20:23:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 20:23:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2021-11-25 20:23:52,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2021-11-25 20:23:52,369 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-25 20:23:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-25 20:23:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:23:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:23:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:23:52,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:23:52,370 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:23:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:23:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 20:23:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 20:23:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:23:52,371 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:23:52,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:23:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:23:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:23:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 20:23:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:23:52,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:23:52,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 20:23:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2021-11-25 20:23:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2021-11-25 20:23:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:23:52,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:23:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:23:52,373 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:23:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:23:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2021-11-25 20:23:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2021-11-25 20:23:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:23:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 20:23:52,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 20:23:52,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:23:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:23:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2021-11-25 20:23:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2021-11-25 20:23:52,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:23:52,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 20:23:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:23:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2021-11-25 20:23:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2021-11-25 20:23:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:23:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 20:23:52,376 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:23:52,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:23:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:23:52,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 20:23:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:23:52,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:23:52,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:23:52,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:23:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:23:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:23:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2021-11-25 20:23:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2021-11-25 20:23:52,378 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:23:52,378 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:23:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:23:52,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 20:23:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:23:52,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 20:23:52,379 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2021-11-25 20:23:52,379 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2021-11-25 20:23:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:23:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:23:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-25 20:23:52,380 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-25 20:23:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:23:52,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:23:52,380 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:23:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:23:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:23:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-25 20:23:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-25 20:23:52,381 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:23:52,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:23:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2021-11-25 20:23:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2021-11-25 20:23:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2021-11-25 20:23:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2021-11-25 20:23:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:23:52,382 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:23:52,382 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:23:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:23:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:23:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 20:23:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:23:52,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:23:52,383 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_stop [2021-11-25 20:23:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_stop [2021-11-25 20:23:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:23:52,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:23:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:23:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:23:52,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:23:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:23:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:23:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 20:23:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:23:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:23:52,385 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_open [2021-11-25 20:23:52,385 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_open [2021-11-25 20:23:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-25 20:23:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_spinlock_spin_lock_lock_of_dmfe_board_info [2021-11-25 20:23:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:23:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:23:52,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_130 [2021-11-25 20:23:52,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_130 [2021-11-25 20:23:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:23:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:23:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:23:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:23:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 20:23:52,387 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 20:23:52,387 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-25 20:23:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-25 20:23:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:23:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 20:23:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:23:52,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 20:23:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:23:52,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:23:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 20:23:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:23:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 20:23:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 20:23:52,389 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 20:23:52,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 20:23:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2021-11-25 20:23:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2021-11-25 20:23:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:23:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2021-11-25 20:23:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2021-11-25 20:23:52,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:23:52,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 20:23:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:23:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:23:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2021-11-25 20:23:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2021-11-25 20:23:52,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:23:52,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:23:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2021-11-25 20:23:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2021-11-25 20:23:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-25 20:23:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-25 20:23:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:23:52,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 20:23:52,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:23:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 20:23:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:23:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:23:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:23:52,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_linux_kernel_locking_spinlock_spin_lock [2021-11-25 20:23:52,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:23:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 20:23:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-25 20:23:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-25 20:23:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:23:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:23:52,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 20:23:52,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:23:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:23:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-25 20:23:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-25 20:23:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:23:52,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 20:23:52,395 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-11-25 20:23:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-11-25 20:23:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2021-11-25 20:23:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2021-11-25 20:23:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:23:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:23:52,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:23:52,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 20:23:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 20:23:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 20:23:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:23:52,397 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:23:52,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:23:53,202 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:23:53,209 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:23:53,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:23:56,536 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:23:57,860 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:23:57,861 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:23:57,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:23:57 BoogieIcfgContainer [2021-11-25 20:23:57,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:23:57,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:23:57,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:23:57,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:23:57,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:23:46" (1/3) ... [2021-11-25 20:23:57,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9f7b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:23:57, skipping insertion in model container [2021-11-25 20:23:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:23:51" (2/3) ... [2021-11-25 20:23:57,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9f7b02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:23:57, skipping insertion in model container [2021-11-25 20:23:57,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:23:57" (3/3) ... [2021-11-25 20:23:57,873 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--net--ethernet--dec--tulip--dmfe.ko.cil.i [2021-11-25 20:23:57,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:23:57,879 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-25 20:23:57,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:23:57,938 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 [2021-11-25 20:23:57,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-25 20:23:57,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 1247 states, 701 states have (on average 1.303851640513552) internal successors, (914), 757 states have internal predecessors, (914), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) [2021-11-25 20:23:58,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:23:58,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:23:58,007 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:23:58,008 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 25 more)] === [2021-11-25 20:23:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:23:58,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1973902439, now seen corresponding path program 1 times [2021-11-25 20:23:58,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:23:58,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196541830] [2021-11-25 20:23:58,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:23:58,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:23:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:23:58,763 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:23:58,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:23:58,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196541830] [2021-11-25 20:23:58,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196541830] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:23:58,765 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:23:58,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:23:58,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041458100] [2021-11-25 20:23:58,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:23:58,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:23:58,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:23:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:23:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:23:58,812 INFO L87 Difference]: Start difference. First operand has 1247 states, 701 states have (on average 1.303851640513552) internal successors, (914), 757 states have internal predecessors, (914), 419 states have call successors, (419), 100 states have call predecessors, (419), 99 states have return successors, (415), 406 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 20:24:01,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:01,555 INFO L93 Difference]: Finished difference Result 2461 states and 3526 transitions. [2021-11-25 20:24:01,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:01,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 50 [2021-11-25 20:24:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:01,629 INFO L225 Difference]: With dead ends: 2461 [2021-11-25 20:24:01,629 INFO L226 Difference]: Without dead ends: 1232 [2021-11-25 20:24:01,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:01,662 INFO L933 BasicCegarLoop]: 1466 mSDtfsCounter, 1694 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1696 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:01,662 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1696 Valid, 2932 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-25 20:24:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2021-11-25 20:24:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2021-11-25 20:24:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 693 states have (on average 1.2611832611832612) internal successors, (874), 746 states have internal predecessors, (874), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:01,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1702 transitions. [2021-11-25 20:24:01,913 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1702 transitions. Word has length 50 [2021-11-25 20:24:01,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:01,915 INFO L470 AbstractCegarLoop]: Abstraction has 1232 states and 1702 transitions. [2021-11-25 20:24:01,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-25 20:24:01,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1702 transitions. [2021-11-25 20:24:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-25 20:24:01,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:01,921 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:01,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:24:01,923 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 25 more)] === [2021-11-25 20:24:01,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:01,926 INFO L85 PathProgramCache]: Analyzing trace with hash -628491455, now seen corresponding path program 1 times [2021-11-25 20:24:01,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:01,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586412849] [2021-11-25 20:24:01,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:01,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:02,210 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:02,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586412849] [2021-11-25 20:24:02,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586412849] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:02,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:02,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:02,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805925665] [2021-11-25 20:24:02,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:02,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:02,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:02,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:02,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:02,214 INFO L87 Difference]: Start difference. First operand 1232 states and 1702 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:24:04,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:04,670 INFO L93 Difference]: Finished difference Result 1232 states and 1702 transitions. [2021-11-25 20:24:04,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:04,671 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 55 [2021-11-25 20:24:04,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:04,685 INFO L225 Difference]: With dead ends: 1232 [2021-11-25 20:24:04,686 INFO L226 Difference]: Without dead ends: 1230 [2021-11-25 20:24:04,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:04,688 INFO L933 BasicCegarLoop]: 1450 mSDtfsCounter, 1676 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1678 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:04,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1678 Valid, 2900 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:24:04,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2021-11-25 20:24:04,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 1230. [2021-11-25 20:24:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 692 states have (on average 1.260115606936416) internal successors, (872), 744 states have internal predecessors, (872), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:04,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1700 transitions. [2021-11-25 20:24:04,791 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1700 transitions. Word has length 55 [2021-11-25 20:24:04,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:04,791 INFO L470 AbstractCegarLoop]: Abstraction has 1230 states and 1700 transitions. [2021-11-25 20:24:04,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-25 20:24:04,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1700 transitions. [2021-11-25 20:24:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-25 20:24:04,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:04,795 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:04,795 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:24:04,795 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 25 more)] === [2021-11-25 20:24:04,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1437420630, now seen corresponding path program 1 times [2021-11-25 20:24:04,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:04,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480564555] [2021-11-25 20:24:04,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:04,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:04,991 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:04,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:04,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480564555] [2021-11-25 20:24:04,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480564555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:04,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:04,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:04,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881543752] [2021-11-25 20:24:04,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:04,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:04,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:05,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:05,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:05,009 INFO L87 Difference]: Start difference. First operand 1230 states and 1700 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:24:07,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:07,881 INFO L93 Difference]: Finished difference Result 1230 states and 1700 transitions. [2021-11-25 20:24:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2021-11-25 20:24:07,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:07,894 INFO L225 Difference]: With dead ends: 1230 [2021-11-25 20:24:07,894 INFO L226 Difference]: Without dead ends: 1228 [2021-11-25 20:24:07,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:07,896 INFO L933 BasicCegarLoop]: 1448 mSDtfsCounter, 1673 mSDsluCounter, 1695 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1675 SdHoareTripleChecker+Valid, 2896 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:07,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1675 Valid, 2896 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-25 20:24:07,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2021-11-25 20:24:07,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 1228. [2021-11-25 20:24:07,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 691 states have (on average 1.2590448625180897) internal successors, (870), 742 states have internal predecessors, (870), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:08,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1698 transitions. [2021-11-25 20:24:08,008 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1698 transitions. Word has length 60 [2021-11-25 20:24:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:08,009 INFO L470 AbstractCegarLoop]: Abstraction has 1228 states and 1698 transitions. [2021-11-25 20:24:08,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-25 20:24:08,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1698 transitions. [2021-11-25 20:24:08,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-25 20:24:08,015 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:08,016 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:08,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:24:08,016 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 25 more)] === [2021-11-25 20:24:08,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash -22931502, now seen corresponding path program 1 times [2021-11-25 20:24:08,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:08,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136012939] [2021-11-25 20:24:08,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:08,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:08,295 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:08,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:08,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136012939] [2021-11-25 20:24:08,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136012939] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:08,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:08,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:08,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215103172] [2021-11-25 20:24:08,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:08,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:08,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:08,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:08,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:08,298 INFO L87 Difference]: Start difference. First operand 1228 states and 1698 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:24:10,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:10,516 INFO L93 Difference]: Finished difference Result 1228 states and 1698 transitions. [2021-11-25 20:24:10,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:10,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2021-11-25 20:24:10,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:10,527 INFO L225 Difference]: With dead ends: 1228 [2021-11-25 20:24:10,527 INFO L226 Difference]: Without dead ends: 1226 [2021-11-25 20:24:10,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:10,529 INFO L933 BasicCegarLoop]: 1446 mSDtfsCounter, 1670 mSDsluCounter, 1693 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 2892 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:10,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1672 Valid, 2892 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 20:24:10,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1226 states. [2021-11-25 20:24:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1226 to 1226. [2021-11-25 20:24:10,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1226 states, 690 states have (on average 1.2579710144927536) internal successors, (868), 740 states have internal predecessors, (868), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1226 states to 1226 states and 1696 transitions. [2021-11-25 20:24:10,611 INFO L78 Accepts]: Start accepts. Automaton has 1226 states and 1696 transitions. Word has length 65 [2021-11-25 20:24:10,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:10,612 INFO L470 AbstractCegarLoop]: Abstraction has 1226 states and 1696 transitions. [2021-11-25 20:24:10,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 20:24:10,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1226 states and 1696 transitions. [2021-11-25 20:24:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-25 20:24:10,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:10,616 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:10,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:24:10,616 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 25 more)] === [2021-11-25 20:24:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 736235529, now seen corresponding path program 1 times [2021-11-25 20:24:10,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:10,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717853355] [2021-11-25 20:24:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:10,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:10,815 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:10,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717853355] [2021-11-25 20:24:10,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717853355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:10,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:10,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:10,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234662134] [2021-11-25 20:24:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:10,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:10,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:10,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:10,818 INFO L87 Difference]: Start difference. First operand 1226 states and 1696 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:24:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:13,306 INFO L93 Difference]: Finished difference Result 1226 states and 1696 transitions. [2021-11-25 20:24:13,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:13,307 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2021-11-25 20:24:13,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:13,317 INFO L225 Difference]: With dead ends: 1226 [2021-11-25 20:24:13,318 INFO L226 Difference]: Without dead ends: 1224 [2021-11-25 20:24:13,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:13,320 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 1667 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1669 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:13,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1669 Valid, 2888 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:24:13,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2021-11-25 20:24:13,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2021-11-25 20:24:13,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 689 states have (on average 1.2568940493468794) internal successors, (866), 738 states have internal predecessors, (866), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:13,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1694 transitions. [2021-11-25 20:24:13,404 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1694 transitions. Word has length 70 [2021-11-25 20:24:13,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:13,405 INFO L470 AbstractCegarLoop]: Abstraction has 1224 states and 1694 transitions. [2021-11-25 20:24:13,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-25 20:24:13,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1694 transitions. [2021-11-25 20:24:13,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-25 20:24:13,407 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:13,407 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:13,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:24:13,408 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 25 more)] === [2021-11-25 20:24:13,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:13,409 INFO L85 PathProgramCache]: Analyzing trace with hash -813099282, now seen corresponding path program 1 times [2021-11-25 20:24:13,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:13,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386428464] [2021-11-25 20:24:13,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:13,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:13,618 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:13,619 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:13,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386428464] [2021-11-25 20:24:13,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386428464] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:13,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:13,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:13,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732027724] [2021-11-25 20:24:13,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:13,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:13,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:13,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:13,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:13,622 INFO L87 Difference]: Start difference. First operand 1224 states and 1694 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:24:15,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:15,385 INFO L93 Difference]: Finished difference Result 1224 states and 1694 transitions. [2021-11-25 20:24:15,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:15,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 75 [2021-11-25 20:24:15,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:15,395 INFO L225 Difference]: With dead ends: 1224 [2021-11-25 20:24:15,395 INFO L226 Difference]: Without dead ends: 1222 [2021-11-25 20:24:15,396 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:15,397 INFO L933 BasicCegarLoop]: 1442 mSDtfsCounter, 1664 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 2884 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:15,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 2884 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:24:15,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-25 20:24:15,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1222. [2021-11-25 20:24:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 688 states have (on average 1.255813953488372) internal successors, (864), 736 states have internal predecessors, (864), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:15,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1692 transitions. [2021-11-25 20:24:15,480 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1692 transitions. Word has length 75 [2021-11-25 20:24:15,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:15,480 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1692 transitions. [2021-11-25 20:24:15,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-25 20:24:15,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1692 transitions. [2021-11-25 20:24:15,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-25 20:24:15,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:15,483 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:15,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:24:15,483 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 25 more)] === [2021-11-25 20:24:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:15,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1291923083, now seen corresponding path program 1 times [2021-11-25 20:24:15,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:15,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434287079] [2021-11-25 20:24:15,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:15,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:15,624 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:15,625 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:15,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434287079] [2021-11-25 20:24:15,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434287079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:15,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:15,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:15,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107915860] [2021-11-25 20:24:15,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:15,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:15,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:15,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:15,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:15,627 INFO L87 Difference]: Start difference. First operand 1222 states and 1692 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:24:17,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:17,574 INFO L93 Difference]: Finished difference Result 1222 states and 1692 transitions. [2021-11-25 20:24:17,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:17,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2021-11-25 20:24:17,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:17,587 INFO L225 Difference]: With dead ends: 1222 [2021-11-25 20:24:17,588 INFO L226 Difference]: Without dead ends: 1220 [2021-11-25 20:24:17,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:17,590 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 1661 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:17,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1663 Valid, 2880 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 20:24:17,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-11-25 20:24:17,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1220. [2021-11-25 20:24:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 687 states have (on average 1.254730713245997) internal successors, (862), 734 states have internal predecessors, (862), 415 states have call successors, (415), 99 states have call predecessors, (415), 98 states have return successors, (413), 404 states have call predecessors, (413), 413 states have call successors, (413) [2021-11-25 20:24:17,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1690 transitions. [2021-11-25 20:24:17,668 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1690 transitions. Word has length 80 [2021-11-25 20:24:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:17,669 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1690 transitions. [2021-11-25 20:24:17,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:24:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1690 transitions. [2021-11-25 20:24:17,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-25 20:24:17,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:17,677 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 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] [2021-11-25 20:24:17,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:24:17,677 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 25 more)] === [2021-11-25 20:24:17,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:17,678 INFO L85 PathProgramCache]: Analyzing trace with hash 924331453, now seen corresponding path program 1 times [2021-11-25 20:24:17,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:17,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937690819] [2021-11-25 20:24:17,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:17,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:17,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:17,887 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-11-25 20:24:17,887 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:17,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937690819] [2021-11-25 20:24:17,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937690819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:17,888 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:17,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:24:17,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835942815] [2021-11-25 20:24:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:17,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:24:17,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:17,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:24:17,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:17,890 INFO L87 Difference]: Start difference. First operand 1220 states and 1690 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:24:22,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:22,073 INFO L93 Difference]: Finished difference Result 1549 states and 2134 transitions. [2021-11-25 20:24:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:24:22,074 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 99 [2021-11-25 20:24:22,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:22,086 INFO L225 Difference]: With dead ends: 1549 [2021-11-25 20:24:22,086 INFO L226 Difference]: Without dead ends: 1547 [2021-11-25 20:24:22,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:24:22,088 INFO L933 BasicCegarLoop]: 1788 mSDtfsCounter, 1268 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1269 SdHoareTripleChecker+Valid, 6074 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:22,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1269 Valid, 6074 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 20:24:22,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2021-11-25 20:24:22,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1543. [2021-11-25 20:24:22,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 869 states have (on average 1.2520138089758344) internal successors, (1088), 919 states have internal predecessors, (1088), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-25 20:24:22,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2130 transitions. [2021-11-25 20:24:22,252 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2130 transitions. Word has length 99 [2021-11-25 20:24:22,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:22,253 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2130 transitions. [2021-11-25 20:24:22,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:24:22,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2130 transitions. [2021-11-25 20:24:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-25 20:24:22,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:22,255 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:22,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:24:22,256 INFO L402 AbstractCegarLoop]: === Iteration 9 === 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 25 more)] === [2021-11-25 20:24:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:22,257 INFO L85 PathProgramCache]: Analyzing trace with hash 343029975, now seen corresponding path program 1 times [2021-11-25 20:24:22,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:22,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954229095] [2021-11-25 20:24:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:22,257 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:22,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:22,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954229095] [2021-11-25 20:24:22,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954229095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:22,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:22,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:22,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55407604] [2021-11-25 20:24:22,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:22,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:22,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:22,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:22,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:22,434 INFO L87 Difference]: Start difference. First operand 1543 states and 2130 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:24,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:24,882 INFO L93 Difference]: Finished difference Result 1543 states and 2130 transitions. [2021-11-25 20:24:24,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:24,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2021-11-25 20:24:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:24,895 INFO L225 Difference]: With dead ends: 1543 [2021-11-25 20:24:24,895 INFO L226 Difference]: Without dead ends: 1541 [2021-11-25 20:24:24,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:24,899 INFO L933 BasicCegarLoop]: 1436 mSDtfsCounter, 1660 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1662 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:24,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1662 Valid, 2868 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:24:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2021-11-25 20:24:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1541. [2021-11-25 20:24:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 868 states have (on average 1.2511520737327189) internal successors, (1086), 917 states have internal predecessors, (1086), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-25 20:24:25,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2128 transitions. [2021-11-25 20:24:25,016 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2128 transitions. Word has length 85 [2021-11-25 20:24:25,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:25,017 INFO L470 AbstractCegarLoop]: Abstraction has 1541 states and 2128 transitions. [2021-11-25 20:24:25,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2128 transitions. [2021-11-25 20:24:25,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-25 20:24:25,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:25,020 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:25,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:24:25,020 INFO L402 AbstractCegarLoop]: === Iteration 10 === 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 25 more)] === [2021-11-25 20:24:25,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1060535494, now seen corresponding path program 1 times [2021-11-25 20:24:25,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:25,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321158962] [2021-11-25 20:24:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:25,021 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:25,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:25,219 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:25,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321158962] [2021-11-25 20:24:25,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321158962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:25,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:25,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:25,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273329609] [2021-11-25 20:24:25,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:25,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:25,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:25,222 INFO L87 Difference]: Start difference. First operand 1541 states and 2128 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:27,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:27,490 INFO L93 Difference]: Finished difference Result 1541 states and 2128 transitions. [2021-11-25 20:24:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:27,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 87 [2021-11-25 20:24:27,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:27,502 INFO L225 Difference]: With dead ends: 1541 [2021-11-25 20:24:27,502 INFO L226 Difference]: Without dead ends: 1539 [2021-11-25 20:24:27,504 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:27,504 INFO L933 BasicCegarLoop]: 1434 mSDtfsCounter, 1652 mSDsluCounter, 1681 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1654 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:27,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1654 Valid, 2868 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:24:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-11-25 20:24:27,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1539. [2021-11-25 20:24:27,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 867 states have (on average 1.2502883506343714) internal successors, (1084), 915 states have internal predecessors, (1084), 522 states have call successors, (522), 134 states have call predecessors, (522), 133 states have return successors, (520), 510 states have call predecessors, (520), 520 states have call successors, (520) [2021-11-25 20:24:27,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2126 transitions. [2021-11-25 20:24:27,615 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2126 transitions. Word has length 87 [2021-11-25 20:24:27,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:27,615 INFO L470 AbstractCegarLoop]: Abstraction has 1539 states and 2126 transitions. [2021-11-25 20:24:27,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:27,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2126 transitions. [2021-11-25 20:24:27,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 20:24:27,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:27,618 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:27,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:24:27,618 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 25 more)] === [2021-11-25 20:24:27,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:27,619 INFO L85 PathProgramCache]: Analyzing trace with hash 295546575, now seen corresponding path program 1 times [2021-11-25 20:24:27,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:27,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604613749] [2021-11-25 20:24:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:27,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2021-11-25 20:24:27,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:27,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604613749] [2021-11-25 20:24:27,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604613749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:27,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:27,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:24:27,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206584936] [2021-11-25 20:24:27,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:27,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:24:27,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:27,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:24:27,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:27,760 INFO L87 Difference]: Start difference. First operand 1539 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:24:30,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:30,616 INFO L93 Difference]: Finished difference Result 3735 states and 5114 transitions. [2021-11-25 20:24:30,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:24:30,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 104 [2021-11-25 20:24:30,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:30,636 INFO L225 Difference]: With dead ends: 3735 [2021-11-25 20:24:30,636 INFO L226 Difference]: Without dead ends: 2221 [2021-11-25 20:24:30,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:30,648 INFO L933 BasicCegarLoop]: 1808 mSDtfsCounter, 1520 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:30,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1520 Valid, 2576 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 20:24:30,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2021-11-25 20:24:30,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2213. [2021-11-25 20:24:30,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1253 states have (on average 1.2458100558659218) internal successors, (1561), 1313 states have internal predecessors, (1561), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:30,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 3021 transitions. [2021-11-25 20:24:30,849 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 3021 transitions. Word has length 104 [2021-11-25 20:24:30,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:30,849 INFO L470 AbstractCegarLoop]: Abstraction has 2213 states and 3021 transitions. [2021-11-25 20:24:30,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 1 states have call predecessors, (15), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-25 20:24:30,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 3021 transitions. [2021-11-25 20:24:30,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-25 20:24:30,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:30,851 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:30,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:24:30,852 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 25 more)] === [2021-11-25 20:24:30,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:30,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1319236532, now seen corresponding path program 1 times [2021-11-25 20:24:30,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:30,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580024535] [2021-11-25 20:24:30,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:30,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:30,990 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:30,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:30,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580024535] [2021-11-25 20:24:30,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580024535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:30,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:30,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:30,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656028706] [2021-11-25 20:24:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:30,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:30,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:30,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:30,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:30,993 INFO L87 Difference]: Start difference. First operand 2213 states and 3021 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:24:33,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:33,554 INFO L93 Difference]: Finished difference Result 2213 states and 3021 transitions. [2021-11-25 20:24:33,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:33,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2021-11-25 20:24:33,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:33,567 INFO L225 Difference]: With dead ends: 2213 [2021-11-25 20:24:33,567 INFO L226 Difference]: Without dead ends: 2211 [2021-11-25 20:24:33,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:33,570 INFO L933 BasicCegarLoop]: 1432 mSDtfsCounter, 1651 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1653 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:33,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1653 Valid, 2864 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:24:33,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2211 states. [2021-11-25 20:24:33,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2211 to 2211. [2021-11-25 20:24:33,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2211 states, 1252 states have (on average 1.2452076677316295) internal successors, (1559), 1311 states have internal predecessors, (1559), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2211 states to 2211 states and 3019 transitions. [2021-11-25 20:24:33,746 INFO L78 Accepts]: Start accepts. Automaton has 2211 states and 3019 transitions. Word has length 92 [2021-11-25 20:24:33,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:33,747 INFO L470 AbstractCegarLoop]: Abstraction has 2211 states and 3019 transitions. [2021-11-25 20:24:33,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:24:33,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2211 states and 3019 transitions. [2021-11-25 20:24:33,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-11-25 20:24:33,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:33,749 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:33,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 20:24:33,750 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 25 more)] === [2021-11-25 20:24:33,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash 925531118, now seen corresponding path program 1 times [2021-11-25 20:24:33,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:33,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954164389] [2021-11-25 20:24:33,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:33,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-25 20:24:33,909 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:33,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954164389] [2021-11-25 20:24:33,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954164389] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:24:33,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036540385] [2021-11-25 20:24:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:33,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:24:33,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:24:33,913 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:24:33,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:24:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:34,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 2235 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:24:34,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:24:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 20:24:35,091 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:24:35,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036540385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:35,092 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:24:35,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2021-11-25 20:24:35,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849060929] [2021-11-25 20:24:35,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:35,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:24:35,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:35,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:24:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:24:35,093 INFO L87 Difference]: Start difference. First operand 2211 states and 3019 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:36,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:36,390 INFO L93 Difference]: Finished difference Result 4393 states and 5994 transitions. [2021-11-25 20:24:36,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:24:36,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 109 [2021-11-25 20:24:36,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:36,406 INFO L225 Difference]: With dead ends: 4393 [2021-11-25 20:24:36,406 INFO L226 Difference]: Without dead ends: 2207 [2021-11-25 20:24:36,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:24:36,418 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 1651 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 1428 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:36,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1651 Valid, 1428 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 20:24:36,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2021-11-25 20:24:36,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 2207. [2021-11-25 20:24:36,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2207 states, 1249 states have (on average 1.244195356285028) internal successors, (1554), 1307 states have internal predecessors, (1554), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:36,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2207 states to 2207 states and 3014 transitions. [2021-11-25 20:24:36,595 INFO L78 Accepts]: Start accepts. Automaton has 2207 states and 3014 transitions. Word has length 109 [2021-11-25 20:24:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:36,596 INFO L470 AbstractCegarLoop]: Abstraction has 2207 states and 3014 transitions. [2021-11-25 20:24:36,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:24:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 2207 states and 3014 transitions. [2021-11-25 20:24:36,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 20:24:36,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:36,599 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:36,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:24:36,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-25 20:24:36,822 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 25 more)] === [2021-11-25 20:24:36,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:36,822 INFO L85 PathProgramCache]: Analyzing trace with hash -295756061, now seen corresponding path program 1 times [2021-11-25 20:24:36,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:36,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502847815] [2021-11-25 20:24:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:36,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:36,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:36,972 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502847815] [2021-11-25 20:24:36,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502847815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:36,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:36,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:36,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380333223] [2021-11-25 20:24:36,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:36,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:36,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:36,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:36,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:36,974 INFO L87 Difference]: Start difference. First operand 2207 states and 3014 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:24:38,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:38,752 INFO L93 Difference]: Finished difference Result 2207 states and 3014 transitions. [2021-11-25 20:24:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:38,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 97 [2021-11-25 20:24:38,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:38,768 INFO L225 Difference]: With dead ends: 2207 [2021-11-25 20:24:38,768 INFO L226 Difference]: Without dead ends: 2205 [2021-11-25 20:24:38,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:38,770 INFO L933 BasicCegarLoop]: 1425 mSDtfsCounter, 1643 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1645 SdHoareTripleChecker+Valid, 2850 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:38,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1645 Valid, 2850 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:24:38,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2021-11-25 20:24:38,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2021-11-25 20:24:38,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1248 states have (on average 1.2435897435897436) internal successors, (1552), 1305 states have internal predecessors, (1552), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3012 transitions. [2021-11-25 20:24:38,957 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3012 transitions. Word has length 97 [2021-11-25 20:24:38,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:38,957 INFO L470 AbstractCegarLoop]: Abstraction has 2205 states and 3012 transitions. [2021-11-25 20:24:38,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-25 20:24:38,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3012 transitions. [2021-11-25 20:24:38,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-25 20:24:38,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:38,960 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:38,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 20:24:38,961 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 25 more)] === [2021-11-25 20:24:38,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash 54418375, now seen corresponding path program 1 times [2021-11-25 20:24:38,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:38,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616631951] [2021-11-25 20:24:38,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:38,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:39,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:39,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:39,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616631951] [2021-11-25 20:24:39,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616631951] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:39,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:39,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:39,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558661798] [2021-11-25 20:24:39,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:39,116 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:39,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:39,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:39,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:39,117 INFO L87 Difference]: Start difference. First operand 2205 states and 3012 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:24:40,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:40,878 INFO L93 Difference]: Finished difference Result 2205 states and 3012 transitions. [2021-11-25 20:24:40,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:40,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2021-11-25 20:24:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:40,893 INFO L225 Difference]: With dead ends: 2205 [2021-11-25 20:24:40,893 INFO L226 Difference]: Without dead ends: 2203 [2021-11-25 20:24:40,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:40,895 INFO L933 BasicCegarLoop]: 1423 mSDtfsCounter, 1640 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1642 SdHoareTripleChecker+Valid, 2846 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:40,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1642 Valid, 2846 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:24:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2203 states. [2021-11-25 20:24:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2203 to 2203. [2021-11-25 20:24:41,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 1247 states have (on average 1.2429831595829992) internal successors, (1550), 1303 states have internal predecessors, (1550), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:41,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 3010 transitions. [2021-11-25 20:24:41,076 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 3010 transitions. Word has length 102 [2021-11-25 20:24:41,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:41,076 INFO L470 AbstractCegarLoop]: Abstraction has 2203 states and 3010 transitions. [2021-11-25 20:24:41,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-25 20:24:41,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 3010 transitions. [2021-11-25 20:24:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 20:24:41,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:41,079 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:41,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 20:24:41,079 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 25 more)] === [2021-11-25 20:24:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash 424383201, now seen corresponding path program 1 times [2021-11-25 20:24:41,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:41,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070565277] [2021-11-25 20:24:41,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:41,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:41,239 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:41,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070565277] [2021-11-25 20:24:41,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070565277] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:41,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:41,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:41,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853447719] [2021-11-25 20:24:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:41,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:41,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:41,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:41,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:41,241 INFO L87 Difference]: Start difference. First operand 2203 states and 3010 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:24:43,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:43,053 INFO L93 Difference]: Finished difference Result 2203 states and 3010 transitions. [2021-11-25 20:24:43,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:43,054 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 107 [2021-11-25 20:24:43,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:43,067 INFO L225 Difference]: With dead ends: 2203 [2021-11-25 20:24:43,067 INFO L226 Difference]: Without dead ends: 2201 [2021-11-25 20:24:43,069 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:43,069 INFO L933 BasicCegarLoop]: 1421 mSDtfsCounter, 1637 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:43,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1639 Valid, 2842 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 20:24:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2021-11-25 20:24:43,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2201. [2021-11-25 20:24:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2201 states, 1246 states have (on average 1.2423756019261638) internal successors, (1548), 1301 states have internal predecessors, (1548), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:43,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 3008 transitions. [2021-11-25 20:24:43,253 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 3008 transitions. Word has length 107 [2021-11-25 20:24:43,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:43,254 INFO L470 AbstractCegarLoop]: Abstraction has 2201 states and 3008 transitions. [2021-11-25 20:24:43,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-25 20:24:43,254 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 3008 transitions. [2021-11-25 20:24:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-25 20:24:43,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:43,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:43,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 20:24:43,257 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 25 more)] === [2021-11-25 20:24:43,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:43,258 INFO L85 PathProgramCache]: Analyzing trace with hash -130321650, now seen corresponding path program 1 times [2021-11-25 20:24:43,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:43,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482845475] [2021-11-25 20:24:43,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:43,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:43,404 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:43,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482845475] [2021-11-25 20:24:43,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482845475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:43,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:43,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:43,405 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285856725] [2021-11-25 20:24:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:43,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:43,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:43,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:43,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:43,410 INFO L87 Difference]: Start difference. First operand 2201 states and 3008 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:24:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:45,124 INFO L93 Difference]: Finished difference Result 2201 states and 3008 transitions. [2021-11-25 20:24:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:45,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 112 [2021-11-25 20:24:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:45,138 INFO L225 Difference]: With dead ends: 2201 [2021-11-25 20:24:45,138 INFO L226 Difference]: Without dead ends: 2199 [2021-11-25 20:24:45,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:45,140 INFO L933 BasicCegarLoop]: 1419 mSDtfsCounter, 1634 mSDsluCounter, 1666 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1636 SdHoareTripleChecker+Valid, 2838 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:45,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1636 Valid, 2838 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:24:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2021-11-25 20:24:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2199. [2021-11-25 20:24:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2199 states, 1245 states have (on average 1.2417670682730924) internal successors, (1546), 1299 states have internal predecessors, (1546), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2199 states to 2199 states and 3006 transitions. [2021-11-25 20:24:45,326 INFO L78 Accepts]: Start accepts. Automaton has 2199 states and 3006 transitions. Word has length 112 [2021-11-25 20:24:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:45,327 INFO L470 AbstractCegarLoop]: Abstraction has 2199 states and 3006 transitions. [2021-11-25 20:24:45,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-25 20:24:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 2199 states and 3006 transitions. [2021-11-25 20:24:45,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-25 20:24:45,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:45,330 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:45,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 20:24:45,330 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 25 more)] === [2021-11-25 20:24:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:45,331 INFO L85 PathProgramCache]: Analyzing trace with hash -385337015, now seen corresponding path program 1 times [2021-11-25 20:24:45,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:45,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062174074] [2021-11-25 20:24:45,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:45,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:45,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:45,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062174074] [2021-11-25 20:24:45,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062174074] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:45,469 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:45,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:45,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353415811] [2021-11-25 20:24:45,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:45,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:45,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:45,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:45,471 INFO L87 Difference]: Start difference. First operand 2199 states and 3006 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:24:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:47,480 INFO L93 Difference]: Finished difference Result 2199 states and 3006 transitions. [2021-11-25 20:24:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:47,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 117 [2021-11-25 20:24:47,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:47,505 INFO L225 Difference]: With dead ends: 2199 [2021-11-25 20:24:47,505 INFO L226 Difference]: Without dead ends: 2197 [2021-11-25 20:24:47,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:47,507 INFO L933 BasicCegarLoop]: 1417 mSDtfsCounter, 1631 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1633 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:47,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1633 Valid, 2834 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 20:24:47,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2197 states. [2021-11-25 20:24:47,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2197 to 2197. [2021-11-25 20:24:47,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2197 states, 1244 states have (on average 1.2411575562700965) internal successors, (1544), 1297 states have internal predecessors, (1544), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:47,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2197 states to 2197 states and 3004 transitions. [2021-11-25 20:24:47,716 INFO L78 Accepts]: Start accepts. Automaton has 2197 states and 3004 transitions. Word has length 117 [2021-11-25 20:24:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:47,716 INFO L470 AbstractCegarLoop]: Abstraction has 2197 states and 3004 transitions. [2021-11-25 20:24:47,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-25 20:24:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2197 states and 3004 transitions. [2021-11-25 20:24:47,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-25 20:24:47,719 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:47,719 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:47,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 20:24:47,720 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 25 more)] === [2021-11-25 20:24:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:47,720 INFO L85 PathProgramCache]: Analyzing trace with hash 312363056, now seen corresponding path program 1 times [2021-11-25 20:24:47,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:47,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279460493] [2021-11-25 20:24:47,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:47,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:47,902 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:47,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279460493] [2021-11-25 20:24:47,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279460493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:47,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:47,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:24:47,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732059149] [2021-11-25 20:24:47,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:47,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:24:47,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:24:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:47,905 INFO L87 Difference]: Start difference. First operand 2197 states and 3004 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 20:24:49,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:49,494 INFO L93 Difference]: Finished difference Result 4385 states and 5993 transitions. [2021-11-25 20:24:49,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:24:49,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 122 [2021-11-25 20:24:49,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:49,505 INFO L225 Difference]: With dead ends: 4385 [2021-11-25 20:24:49,506 INFO L226 Difference]: Without dead ends: 2196 [2021-11-25 20:24:49,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:24:49,518 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 1658 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1658 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:49,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1658 Valid, 1409 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:24:49,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2196 states. [2021-11-25 20:24:49,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2196 to 2196. [2021-11-25 20:24:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2196 states, 1243 states have (on average 1.237329042638777) internal successors, (1538), 1296 states have internal predecessors, (1538), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:49,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2196 states to 2196 states and 2998 transitions. [2021-11-25 20:24:49,712 INFO L78 Accepts]: Start accepts. Automaton has 2196 states and 2998 transitions. Word has length 122 [2021-11-25 20:24:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:49,713 INFO L470 AbstractCegarLoop]: Abstraction has 2196 states and 2998 transitions. [2021-11-25 20:24:49,713 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-25 20:24:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2196 states and 2998 transitions. [2021-11-25 20:24:49,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-25 20:24:49,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:49,716 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:49,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 20:24:49,716 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 25 more)] === [2021-11-25 20:24:49,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:49,717 INFO L85 PathProgramCache]: Analyzing trace with hash 593725876, now seen corresponding path program 1 times [2021-11-25 20:24:49,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:49,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057882298] [2021-11-25 20:24:49,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:49,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:49,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:49,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057882298] [2021-11-25 20:24:49,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057882298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:49,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:49,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:49,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139614900] [2021-11-25 20:24:49,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:49,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:49,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:49,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:49,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:49,863 INFO L87 Difference]: Start difference. First operand 2196 states and 2998 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:24:52,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:52,069 INFO L93 Difference]: Finished difference Result 2196 states and 2998 transitions. [2021-11-25 20:24:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:52,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 125 [2021-11-25 20:24:52,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:52,078 INFO L225 Difference]: With dead ends: 2196 [2021-11-25 20:24:52,078 INFO L226 Difference]: Without dead ends: 2194 [2021-11-25 20:24:52,080 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:52,080 INFO L933 BasicCegarLoop]: 1409 mSDtfsCounter, 1619 mSDsluCounter, 1656 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:52,081 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1621 Valid, 2818 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:24:52,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2021-11-25 20:24:52,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2194. [2021-11-25 20:24:52,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2194 states, 1242 states have (on average 1.2367149758454106) internal successors, (1536), 1294 states have internal predecessors, (1536), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:52,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2194 states to 2194 states and 2996 transitions. [2021-11-25 20:24:52,354 INFO L78 Accepts]: Start accepts. Automaton has 2194 states and 2996 transitions. Word has length 125 [2021-11-25 20:24:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:52,355 INFO L470 AbstractCegarLoop]: Abstraction has 2194 states and 2996 transitions. [2021-11-25 20:24:52,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 20:24:52,355 INFO L276 IsEmpty]: Start isEmpty. Operand 2194 states and 2996 transitions. [2021-11-25 20:24:52,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-25 20:24:52,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:52,358 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:52,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 20:24:52,359 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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 25 more)] === [2021-11-25 20:24:52,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash -488393796, now seen corresponding path program 1 times [2021-11-25 20:24:52,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:52,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931602933] [2021-11-25 20:24:52,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:52,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:52,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:52,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:52,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931602933] [2021-11-25 20:24:52,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931602933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:52,502 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:52,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:52,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583146886] [2021-11-25 20:24:52,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:52,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:52,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:52,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:52,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:52,506 INFO L87 Difference]: Start difference. First operand 2194 states and 2996 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:24:55,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:55,110 INFO L93 Difference]: Finished difference Result 2194 states and 2996 transitions. [2021-11-25 20:24:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:55,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 130 [2021-11-25 20:24:55,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:55,120 INFO L225 Difference]: With dead ends: 2194 [2021-11-25 20:24:55,120 INFO L226 Difference]: Without dead ends: 2192 [2021-11-25 20:24:55,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:55,123 INFO L933 BasicCegarLoop]: 1407 mSDtfsCounter, 1616 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:55,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1618 Valid, 2814 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:24:55,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2021-11-25 20:24:55,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2192. [2021-11-25 20:24:55,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2192 states, 1241 states have (on average 1.2360999194198228) internal successors, (1534), 1292 states have internal predecessors, (1534), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:55,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2192 states to 2192 states and 2994 transitions. [2021-11-25 20:24:55,343 INFO L78 Accepts]: Start accepts. Automaton has 2192 states and 2994 transitions. Word has length 130 [2021-11-25 20:24:55,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:55,343 INFO L470 AbstractCegarLoop]: Abstraction has 2192 states and 2994 transitions. [2021-11-25 20:24:55,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 20:24:55,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2192 states and 2994 transitions. [2021-11-25 20:24:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-11-25 20:24:55,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:55,347 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:55,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 20:24:55,348 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 25 more)] === [2021-11-25 20:24:55,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:55,350 INFO L85 PathProgramCache]: Analyzing trace with hash -212137595, now seen corresponding path program 1 times [2021-11-25 20:24:55,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:55,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694353928] [2021-11-25 20:24:55,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:55,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:55,498 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:55,499 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:55,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694353928] [2021-11-25 20:24:55,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694353928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:55,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:55,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:55,501 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123932640] [2021-11-25 20:24:55,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:55,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:55,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:55,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:55,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:55,502 INFO L87 Difference]: Start difference. First operand 2192 states and 2994 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:24:57,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:57,497 INFO L93 Difference]: Finished difference Result 2192 states and 2994 transitions. [2021-11-25 20:24:57,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:57,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 135 [2021-11-25 20:24:57,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:57,505 INFO L225 Difference]: With dead ends: 2192 [2021-11-25 20:24:57,505 INFO L226 Difference]: Without dead ends: 2190 [2021-11-25 20:24:57,506 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:24:57,506 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 1613 mSDsluCounter, 1652 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:24:57,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1615 Valid, 2810 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-25 20:24:57,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2021-11-25 20:24:57,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2190. [2021-11-25 20:24:57,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2190 states, 1240 states have (on average 1.235483870967742) internal successors, (1532), 1290 states have internal predecessors, (1532), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:24:57,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2190 states to 2190 states and 2992 transitions. [2021-11-25 20:24:57,661 INFO L78 Accepts]: Start accepts. Automaton has 2190 states and 2992 transitions. Word has length 135 [2021-11-25 20:24:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:24:57,662 INFO L470 AbstractCegarLoop]: Abstraction has 2190 states and 2992 transitions. [2021-11-25 20:24:57,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-25 20:24:57,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2190 states and 2992 transitions. [2021-11-25 20:24:57,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-25 20:24:57,666 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:24:57,666 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:24:57,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 20:24:57,667 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 25 more)] === [2021-11-25 20:24:57,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:24:57,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1851088039, now seen corresponding path program 1 times [2021-11-25 20:24:57,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:24:57,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297749803] [2021-11-25 20:24:57,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:24:57,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:24:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:24:57,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:24:57,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:24:57,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297749803] [2021-11-25 20:24:57,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297749803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:24:57,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:24:57,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:24:57,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2272162] [2021-11-25 20:24:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:24:57,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:24:57,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:24:57,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:24:57,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:24:57,808 INFO L87 Difference]: Start difference. First operand 2190 states and 2992 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:24:59,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:24:59,991 INFO L93 Difference]: Finished difference Result 2190 states and 2992 transitions. [2021-11-25 20:24:59,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:24:59,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 140 [2021-11-25 20:24:59,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:24:59,998 INFO L225 Difference]: With dead ends: 2190 [2021-11-25 20:24:59,998 INFO L226 Difference]: Without dead ends: 2188 [2021-11-25 20:25:00,000 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:00,000 INFO L933 BasicCegarLoop]: 1403 mSDtfsCounter, 1610 mSDsluCounter, 1650 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1612 SdHoareTripleChecker+Valid, 2806 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:00,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1612 Valid, 2806 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:25:00,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2188 states. [2021-11-25 20:25:00,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2188 to 2188. [2021-11-25 20:25:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2188 states, 1239 states have (on average 1.234866828087167) internal successors, (1530), 1288 states have internal predecessors, (1530), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:25:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2188 states to 2188 states and 2990 transitions. [2021-11-25 20:25:00,285 INFO L78 Accepts]: Start accepts. Automaton has 2188 states and 2990 transitions. Word has length 140 [2021-11-25 20:25:00,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:00,286 INFO L470 AbstractCegarLoop]: Abstraction has 2188 states and 2990 transitions. [2021-11-25 20:25:00,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-25 20:25:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2188 states and 2990 transitions. [2021-11-25 20:25:00,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-25 20:25:00,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:00,290 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 4, 4, 3, 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] [2021-11-25 20:25:00,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 20:25:00,292 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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 25 more)] === [2021-11-25 20:25:00,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1434230756, now seen corresponding path program 1 times [2021-11-25 20:25:00,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:00,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681004135] [2021-11-25 20:25:00,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:00,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-11-25 20:25:00,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681004135] [2021-11-25 20:25:00,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681004135] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:00,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:00,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:25:00,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117814955] [2021-11-25 20:25:00,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:00,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:25:00,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:00,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:25:00,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:00,488 INFO L87 Difference]: Start difference. First operand 2188 states and 2990 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 20:25:03,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:03,961 INFO L93 Difference]: Finished difference Result 2192 states and 2992 transitions. [2021-11-25 20:25:03,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:25:03,962 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 167 [2021-11-25 20:25:03,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:03,970 INFO L225 Difference]: With dead ends: 2192 [2021-11-25 20:25:03,970 INFO L226 Difference]: Without dead ends: 2190 [2021-11-25 20:25:03,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:25:03,973 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 819 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 1011 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:03,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [820 Valid, 5881 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1011 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 20:25:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2190 states. [2021-11-25 20:25:04,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2190 to 2186. [2021-11-25 20:25:04,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2186 states, 1238 states have (on average 1.2334410339256865) internal successors, (1527), 1286 states have internal predecessors, (1527), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:25:04,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 2987 transitions. [2021-11-25 20:25:04,207 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 2987 transitions. Word has length 167 [2021-11-25 20:25:04,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:04,208 INFO L470 AbstractCegarLoop]: Abstraction has 2186 states and 2987 transitions. [2021-11-25 20:25:04,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-25 20:25:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 2987 transitions. [2021-11-25 20:25:04,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-25 20:25:04,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:04,212 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:04,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 20:25:04,212 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 25 more)] === [2021-11-25 20:25:04,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1230234141, now seen corresponding path program 1 times [2021-11-25 20:25:04,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:04,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795844193] [2021-11-25 20:25:04,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:04,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:25:04,374 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:04,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795844193] [2021-11-25 20:25:04,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795844193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:04,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:04,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:04,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492720818] [2021-11-25 20:25:04,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:04,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:04,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:04,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:04,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:04,377 INFO L87 Difference]: Start difference. First operand 2186 states and 2987 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:25:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:06,849 INFO L93 Difference]: Finished difference Result 2186 states and 2987 transitions. [2021-11-25 20:25:06,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:06,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 145 [2021-11-25 20:25:06,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:06,858 INFO L225 Difference]: With dead ends: 2186 [2021-11-25 20:25:06,859 INFO L226 Difference]: Without dead ends: 2184 [2021-11-25 20:25:06,860 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:06,861 INFO L933 BasicCegarLoop]: 1399 mSDtfsCounter, 1605 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2798 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:06,861 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1607 Valid, 2798 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:25:06,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2021-11-25 20:25:07,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2184. [2021-11-25 20:25:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2184 states, 1237 states have (on average 1.232821341956346) internal successors, (1525), 1284 states have internal predecessors, (1525), 731 states have call successors, (731), 213 states have call predecessors, (731), 212 states have return successors, (729), 715 states have call predecessors, (729), 729 states have call successors, (729) [2021-11-25 20:25:07,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2985 transitions. [2021-11-25 20:25:07,150 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2985 transitions. Word has length 145 [2021-11-25 20:25:07,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:07,151 INFO L470 AbstractCegarLoop]: Abstraction has 2184 states and 2985 transitions. [2021-11-25 20:25:07,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:25:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2985 transitions. [2021-11-25 20:25:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-25 20:25:07,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:07,155 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:07,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 20:25:07,155 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 25 more)] === [2021-11-25 20:25:07,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:07,156 INFO L85 PathProgramCache]: Analyzing trace with hash 759424358, now seen corresponding path program 1 times [2021-11-25 20:25:07,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:07,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519699058] [2021-11-25 20:25:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:07,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:07,337 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 20:25:07,337 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:07,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519699058] [2021-11-25 20:25:07,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519699058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:07,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:07,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:07,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061148180] [2021-11-25 20:25:07,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:07,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:07,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:07,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:07,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:07,340 INFO L87 Difference]: Start difference. First operand 2184 states and 2985 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:25:08,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:08,874 INFO L93 Difference]: Finished difference Result 2184 states and 2985 transitions. [2021-11-25 20:25:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 150 [2021-11-25 20:25:08,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:08,888 INFO L225 Difference]: With dead ends: 2184 [2021-11-25 20:25:08,889 INFO L226 Difference]: Without dead ends: 1947 [2021-11-25 20:25:08,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:08,896 INFO L933 BasicCegarLoop]: 1398 mSDtfsCounter, 1602 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1602 SdHoareTripleChecker+Valid, 2796 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:08,898 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1602 Valid, 2796 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:25:08,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1947 states. [2021-11-25 20:25:09,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1947 to 1947. [2021-11-25 20:25:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1106 states have (on average 1.2396021699819169) internal successors, (1371), 1148 states have internal predecessors, (1371), 650 states have call successors, (650), 189 states have call predecessors, (650), 188 states have return successors, (648), 637 states have call predecessors, (648), 648 states have call successors, (648) [2021-11-25 20:25:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2669 transitions. [2021-11-25 20:25:09,138 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2669 transitions. Word has length 150 [2021-11-25 20:25:09,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:09,139 INFO L470 AbstractCegarLoop]: Abstraction has 1947 states and 2669 transitions. [2021-11-25 20:25:09,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-25 20:25:09,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2669 transitions. [2021-11-25 20:25:09,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-25 20:25:09,142 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:09,142 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 3, 3, 3, 3, 3, 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] [2021-11-25 20:25:09,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 20:25:09,143 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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 25 more)] === [2021-11-25 20:25:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:09,143 INFO L85 PathProgramCache]: Analyzing trace with hash -409612093, now seen corresponding path program 1 times [2021-11-25 20:25:09,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:09,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932267717] [2021-11-25 20:25:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:09,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2021-11-25 20:25:09,426 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:09,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932267717] [2021-11-25 20:25:09,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932267717] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:09,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:09,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:25:09,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101446347] [2021-11-25 20:25:09,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:09,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:25:09,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:09,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:25:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:09,428 INFO L87 Difference]: Start difference. First operand 1947 states and 2669 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:25:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:11,501 INFO L93 Difference]: Finished difference Result 3897 states and 5352 transitions. [2021-11-25 20:25:11,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:25:11,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 182 [2021-11-25 20:25:11,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:11,509 INFO L225 Difference]: With dead ends: 3897 [2021-11-25 20:25:11,510 INFO L226 Difference]: Without dead ends: 1974 [2021-11-25 20:25:11,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:11,519 INFO L933 BasicCegarLoop]: 1163 mSDtfsCounter, 10 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:11,520 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 2308 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-25 20:25:11,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-11-25 20:25:11,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1949. [2021-11-25 20:25:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1949 states, 1108 states have (on average 1.2391696750902528) internal successors, (1373), 1150 states have internal predecessors, (1373), 650 states have call successors, (650), 189 states have call predecessors, (650), 188 states have return successors, (648), 637 states have call predecessors, (648), 648 states have call successors, (648) [2021-11-25 20:25:11,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 2671 transitions. [2021-11-25 20:25:11,745 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 2671 transitions. Word has length 182 [2021-11-25 20:25:11,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:11,746 INFO L470 AbstractCegarLoop]: Abstraction has 1949 states and 2671 transitions. [2021-11-25 20:25:11,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 20:25:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 2671 transitions. [2021-11-25 20:25:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-25 20:25:11,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:11,750 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-25 20:25:11,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 20:25:11,751 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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 25 more)] === [2021-11-25 20:25:11,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:11,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1410923377, now seen corresponding path program 1 times [2021-11-25 20:25:11,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:11,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876634472] [2021-11-25 20:25:11,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:11,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:11,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-11-25 20:25:12,055 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:12,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876634472] [2021-11-25 20:25:12,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876634472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:12,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389670519] [2021-11-25 20:25:12,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:12,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:12,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:12,062 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:12,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:25:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:13,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 2718 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-25 20:25:13,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:13,604 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2021-11-25 20:25:13,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:25:13,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389670519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:13,605 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:25:13,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 17 [2021-11-25 20:25:13,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004874100] [2021-11-25 20:25:13,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:13,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:25:13,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:13,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:25:13,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=239, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:25:13,607 INFO L87 Difference]: Start difference. First operand 1949 states and 2671 transitions. Second operand has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2021-11-25 20:25:23,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:23,050 INFO L93 Difference]: Finished difference Result 4148 states and 5734 transitions. [2021-11-25 20:25:23,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-25 20:25:23,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) Word has length 207 [2021-11-25 20:25:23,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:23,058 INFO L225 Difference]: With dead ends: 4148 [2021-11-25 20:25:23,058 INFO L226 Difference]: Without dead ends: 2222 [2021-11-25 20:25:23,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2021-11-25 20:25:23,068 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 559 mSDsluCounter, 14326 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 13633 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:23,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 13633 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 2838 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 20:25:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2222 states. [2021-11-25 20:25:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2222 to 1961. [2021-11-25 20:25:23,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1961 states, 1116 states have (on average 1.2374551971326164) internal successors, (1381), 1158 states have internal predecessors, (1381), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-25 20:25:23,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1961 states to 1961 states and 2687 transitions. [2021-11-25 20:25:23,324 INFO L78 Accepts]: Start accepts. Automaton has 1961 states and 2687 transitions. Word has length 207 [2021-11-25 20:25:23,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:23,324 INFO L470 AbstractCegarLoop]: Abstraction has 1961 states and 2687 transitions. [2021-11-25 20:25:23,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 11.25) internal successors, (90), 10 states have internal predecessors, (90), 6 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (33), 6 states have call predecessors, (33), 6 states have call successors, (33) [2021-11-25 20:25:23,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1961 states and 2687 transitions. [2021-11-25 20:25:23,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-25 20:25:23,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:23,329 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:25:23,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:23,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-25 20:25:23,542 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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 25 more)] === [2021-11-25 20:25:23,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:23,542 INFO L85 PathProgramCache]: Analyzing trace with hash 481086060, now seen corresponding path program 1 times [2021-11-25 20:25:23,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:23,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125721497] [2021-11-25 20:25:23,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:23,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:23,779 INFO L134 CoverageAnalysis]: Checked inductivity of 234 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-11-25 20:25:23,779 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:23,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125721497] [2021-11-25 20:25:23,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125721497] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:23,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:23,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:25:23,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539498959] [2021-11-25 20:25:23,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:23,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:25:23,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:25:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:25:23,782 INFO L87 Difference]: Start difference. First operand 1961 states and 2687 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 20:25:27,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:27,295 INFO L93 Difference]: Finished difference Result 3980 states and 5464 transitions. [2021-11-25 20:25:27,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:25:27,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 220 [2021-11-25 20:25:27,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:27,301 INFO L225 Difference]: With dead ends: 3980 [2021-11-25 20:25:27,301 INFO L226 Difference]: Without dead ends: 2043 [2021-11-25 20:25:27,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:27,308 INFO L933 BasicCegarLoop]: 1241 mSDtfsCounter, 96 mSDsluCounter, 2764 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 3594 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:27,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 3594 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 20:25:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2043 states. [2021-11-25 20:25:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2043 to 1963. [2021-11-25 20:25:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1963 states, 1118 states have (on average 1.237030411449016) internal successors, (1383), 1160 states have internal predecessors, (1383), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-25 20:25:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2689 transitions. [2021-11-25 20:25:27,576 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2689 transitions. Word has length 220 [2021-11-25 20:25:27,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:27,576 INFO L470 AbstractCegarLoop]: Abstraction has 1963 states and 2689 transitions. [2021-11-25 20:25:27,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 20:25:27,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2689 transitions. [2021-11-25 20:25:27,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-25 20:25:27,580 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:27,581 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-11-25 20:25:27,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 20:25:27,581 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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 25 more)] === [2021-11-25 20:25:27,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:27,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1897377786, now seen corresponding path program 1 times [2021-11-25 20:25:27,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:27,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409078882] [2021-11-25 20:25:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:27,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:27,838 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-25 20:25:27,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:27,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409078882] [2021-11-25 20:25:27,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409078882] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:27,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750748179] [2021-11-25 20:25:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:27,840 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:27,846 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:27,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:25:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:28,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2898 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-25 20:25:28,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:29,440 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-25 20:25:29,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:25:29,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750748179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:29,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:25:29,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-25 20:25:29,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59179138] [2021-11-25 20:25:29,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:29,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:25:29,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:29,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:25:29,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:25:29,442 INFO L87 Difference]: Start difference. First operand 1963 states and 2689 transitions. Second operand has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-25 20:25:40,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:40,154 INFO L93 Difference]: Finished difference Result 4195 states and 5795 transitions. [2021-11-25 20:25:40,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-25 20:25:40,155 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 237 [2021-11-25 20:25:40,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:40,163 INFO L225 Difference]: With dead ends: 4195 [2021-11-25 20:25:40,163 INFO L226 Difference]: Without dead ends: 2255 [2021-11-25 20:25:40,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2021-11-25 20:25:40,171 INFO L933 BasicCegarLoop]: 1459 mSDtfsCounter, 610 mSDsluCounter, 16080 mSDsCounter, 0 mSdLazyCounter, 3173 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 15152 SdHoareTripleChecker+Invalid, 3570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 3173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:40,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 15152 Invalid, 3570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 3173 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-11-25 20:25:40,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2021-11-25 20:25:40,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 1968. [2021-11-25 20:25:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1121 states have (on average 1.2363960749330956) internal successors, (1386), 1162 states have internal predecessors, (1386), 656 states have call successors, (656), 189 states have call predecessors, (656), 188 states have return successors, (654), 643 states have call predecessors, (654), 654 states have call successors, (654) [2021-11-25 20:25:40,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2696 transitions. [2021-11-25 20:25:40,485 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2696 transitions. Word has length 237 [2021-11-25 20:25:40,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:40,486 INFO L470 AbstractCegarLoop]: Abstraction has 1968 states and 2696 transitions. [2021-11-25 20:25:40,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 10.88888888888889) internal successors, (98), 11 states have internal predecessors, (98), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-25 20:25:40,486 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2696 transitions. [2021-11-25 20:25:40,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-25 20:25:40,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:40,490 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2021-11-25 20:25:40,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:40,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:40,691 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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 25 more)] === [2021-11-25 20:25:40,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 67229436, now seen corresponding path program 1 times [2021-11-25 20:25:40,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:40,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216996128] [2021-11-25 20:25:40,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:40,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2021-11-25 20:25:40,964 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:40,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216996128] [2021-11-25 20:25:40,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216996128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:40,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866557235] [2021-11-25 20:25:40,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:40,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:40,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:40,966 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:40,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:25:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:41,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 2910 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-25 20:25:41,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:42,385 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2021-11-25 20:25:42,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:25:42,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866557235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:42,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:25:42,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [8] total 18 [2021-11-25 20:25:42,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213352244] [2021-11-25 20:25:42,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:42,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-25 20:25:42,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-25 20:25:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2021-11-25 20:25:42,389 INFO L87 Difference]: Start difference. First operand 1968 states and 2696 transitions. Second operand has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-25 20:25:52,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:52,279 INFO L93 Difference]: Finished difference Result 4543 states and 6331 transitions. [2021-11-25 20:25:52,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 20:25:52,280 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) Word has length 238 [2021-11-25 20:25:52,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:52,286 INFO L225 Difference]: With dead ends: 4543 [2021-11-25 20:25:52,286 INFO L226 Difference]: Without dead ends: 2598 [2021-11-25 20:25:52,291 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=148, Invalid=844, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:25:52,292 INFO L933 BasicCegarLoop]: 1694 mSDtfsCounter, 643 mSDsluCounter, 18140 mSDsCounter, 0 mSdLazyCounter, 3443 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 17321 SdHoareTripleChecker+Invalid, 4010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 3443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:52,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [744 Valid, 17321 Invalid, 4010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 3443 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2021-11-25 20:25:52,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2021-11-25 20:25:52,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 1965. [2021-11-25 20:25:52,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1120 states have (on average 1.238392857142857) internal successors, (1387), 1162 states have internal predecessors, (1387), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-25 20:25:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2693 transitions. [2021-11-25 20:25:52,558 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2693 transitions. Word has length 238 [2021-11-25 20:25:52,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:52,558 INFO L470 AbstractCegarLoop]: Abstraction has 1965 states and 2693 transitions. [2021-11-25 20:25:52,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 11.0) internal successors, (99), 11 states have internal predecessors, (99), 7 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (37), 7 states have call predecessors, (37), 7 states have call successors, (37) [2021-11-25 20:25:52,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2693 transitions. [2021-11-25 20:25:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-25 20:25:52,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:52,562 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 4, 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, 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] [2021-11-25 20:25:52,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:52,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:52,785 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 25 more)] === [2021-11-25 20:25:52,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:52,786 INFO L85 PathProgramCache]: Analyzing trace with hash 632178550, now seen corresponding path program 1 times [2021-11-25 20:25:52,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:52,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562270255] [2021-11-25 20:25:52,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:52,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:52,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2021-11-25 20:25:53,089 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:53,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562270255] [2021-11-25 20:25:53,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562270255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:53,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:25:53,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:25:53,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753410988] [2021-11-25 20:25:53,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:53,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:25:53,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:53,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:25:53,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:53,091 INFO L87 Difference]: Start difference. First operand 1965 states and 2693 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-25 20:25:54,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:54,787 INFO L93 Difference]: Finished difference Result 3909 states and 5357 transitions. [2021-11-25 20:25:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:25:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 242 [2021-11-25 20:25:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:54,792 INFO L225 Difference]: With dead ends: 3909 [2021-11-25 20:25:54,792 INFO L226 Difference]: Without dead ends: 1968 [2021-11-25 20:25:54,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:25:54,799 INFO L933 BasicCegarLoop]: 1146 mSDtfsCounter, 1 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:54,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2285 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:25:54,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-11-25 20:25:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1966. [2021-11-25 20:25:55,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1966 states, 1121 states have (on average 1.2381801962533452) internal successors, (1388), 1163 states have internal predecessors, (1388), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-25 20:25:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1966 states to 1966 states and 2694 transitions. [2021-11-25 20:25:55,060 INFO L78 Accepts]: Start accepts. Automaton has 1966 states and 2694 transitions. Word has length 242 [2021-11-25 20:25:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:55,061 INFO L470 AbstractCegarLoop]: Abstraction has 1966 states and 2694 transitions. [2021-11-25 20:25:55,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-11-25 20:25:55,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1966 states and 2694 transitions. [2021-11-25 20:25:55,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-25 20:25:55,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:55,066 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 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] [2021-11-25 20:25:55,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-25 20:25:55,067 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 25 more)] === [2021-11-25 20:25:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:55,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1203138353, now seen corresponding path program 1 times [2021-11-25 20:25:55,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:55,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145249989] [2021-11-25 20:25:55,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:55,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2021-11-25 20:25:55,402 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:55,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145249989] [2021-11-25 20:25:55,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145249989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:55,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161579518] [2021-11-25 20:25:55,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:55,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:55,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:55,406 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:55,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:25:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:56,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 3694 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 20:25:56,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:25:56,877 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2021-11-25 20:25:56,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:25:56,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161579518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:25:56,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:25:56,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-11-25 20:25:56,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692840849] [2021-11-25 20:25:56,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:25:56,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:25:56,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:25:56,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:25:56,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:56,880 INFO L87 Difference]: Start difference. First operand 1966 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-25 20:25:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:25:58,704 INFO L93 Difference]: Finished difference Result 3916 states and 5368 transitions. [2021-11-25 20:25:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:25:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 248 [2021-11-25 20:25:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:25:58,712 INFO L225 Difference]: With dead ends: 3916 [2021-11-25 20:25:58,712 INFO L226 Difference]: Without dead ends: 1974 [2021-11-25 20:25:58,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:25:58,719 INFO L933 BasicCegarLoop]: 1149 mSDtfsCounter, 2 mSDsluCounter, 1346 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:25:58,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 2288 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:25:58,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1974 states. [2021-11-25 20:25:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1974 to 1967. [2021-11-25 20:25:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1967 states, 1122 states have (on average 1.2379679144385027) internal successors, (1389), 1164 states have internal predecessors, (1389), 654 states have call successors, (654), 189 states have call predecessors, (654), 188 states have return successors, (652), 641 states have call predecessors, (652), 652 states have call successors, (652) [2021-11-25 20:25:58,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1967 states to 1967 states and 2695 transitions. [2021-11-25 20:25:58,916 INFO L78 Accepts]: Start accepts. Automaton has 1967 states and 2695 transitions. Word has length 248 [2021-11-25 20:25:58,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:25:58,917 INFO L470 AbstractCegarLoop]: Abstraction has 1967 states and 2695 transitions. [2021-11-25 20:25:58,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-25 20:25:58,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1967 states and 2695 transitions. [2021-11-25 20:25:58,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2021-11-25 20:25:58,921 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:25:58,921 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 7, 6, 6, 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] [2021-11-25 20:25:58,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:25:59,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:59,142 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 25 more)] === [2021-11-25 20:25:59,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:25:59,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1896596341, now seen corresponding path program 1 times [2021-11-25 20:25:59,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:25:59,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161732743] [2021-11-25 20:25:59,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:59,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:25:59,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:25:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-25 20:25:59,405 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:25:59,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161732743] [2021-11-25 20:25:59,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161732743] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:25:59,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242332802] [2021-11-25 20:25:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:25:59,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:25:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:25:59,407 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:25:59,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d27318f-d967-4f77-8a7a-a54cc9923e01/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:26:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:26:00,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 3757 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:26:00,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:26:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2021-11-25 20:26:00,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:26:01,378 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-25 20:26:01,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242332802] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:26:01,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1176631295] [2021-11-25 20:26:01,410 INFO L159 IcfgInterpreter]: Started Sifa with 149 locations of interest [2021-11-25 20:26:01,411 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:26:01,418 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:26:01,426 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:26:01,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:26:03,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:03,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:04,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:04,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:04,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:04,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:26:04,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 26 [2021-11-25 20:36:27,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:36:27,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9