./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.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_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/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_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/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_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/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 1a40e66604094f312102b838d8c965fbe1879fb2092ea49e39f812ee4cfee256 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:58:53,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:58:53,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:58:53,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:58:53,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:58:53,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:58:53,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:58:53,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:58:53,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:58:53,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:58:53,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:58:53,460 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:58:53,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:58:53,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:58:53,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:58:53,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:58:53,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:58:53,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:58:53,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:58:53,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:58:53,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:58:53,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:58:53,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:58:53,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:58:53,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:58:53,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:58:53,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:58:53,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:58:53,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:58:53,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:58:53,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:58:53,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:58:53,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:58:53,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:58:53,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:58:53,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:58:53,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:58:53,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:58:53,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:58:53,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:58:53,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:58:53,494 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:58:53,520 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:58:53,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:58:53,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:58:53,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:58:53,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:58:53,521 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:58:53,521 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:58:53,522 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:58:53,522 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:58:53,522 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:58:53,522 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:58:53,523 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:58:53,523 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:58:53,523 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:58:53,523 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:58:53,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:58:53,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:58:53,524 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:58:53,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:58:53,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:58:53,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:58:53,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:58:53,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:58:53,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:58:53,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:58:53,526 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:58:53,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:58:53,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:58:53,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:58:53,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:58:53,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:58:53,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:58:53,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:58:53,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:58:53,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:58:53,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:58:53,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:58:53,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:58:53,529 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_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a40e66604094f312102b838d8c965fbe1879fb2092ea49e39f812ee4cfee256 [2021-11-25 17:58:53,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:58:53,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:58:53,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:58:53,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:58:53,771 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:58:53,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2021-11-25 17:58:53,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/data/94e74eecc/b11a16bb5d26444e9e6c703eada84a4b/FLAG1fa53d576 [2021-11-25 17:58:55,027 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:58:55,028 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2021-11-25 17:58:55,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/data/94e74eecc/b11a16bb5d26444e9e6c703eada84a4b/FLAG1fa53d576 [2021-11-25 17:58:55,163 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/data/94e74eecc/b11a16bb5d26444e9e6c703eada84a4b [2021-11-25 17:58:55,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:58:55,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:58:55,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:58:55,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:58:55,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:58:55,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:55" (1/1) ... [2021-11-25 17:58:55,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0ad03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:58:55, skipping insertion in model container [2021-11-25 17:58:55,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:58:55" (1/1) ... [2021-11-25 17:58:55,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:58:55,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:59:03,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2021-11-25 17:59:03,759 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2021-11-25 17:59:03,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2021-11-25 17:59:03,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2021-11-25 17:59:03,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2021-11-25 17:59:03,761 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2021-11-25 17:59:03,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2021-11-25 17:59:03,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2021-11-25 17:59:03,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2021-11-25 17:59:03,763 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2021-11-25 17:59:03,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2021-11-25 17:59:03,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2021-11-25 17:59:03,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2021-11-25 17:59:03,765 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2021-11-25 17:59:03,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2021-11-25 17:59:03,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2021-11-25 17:59:03,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2021-11-25 17:59:03,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2021-11-25 17:59:03,802 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2021-11-25 17:59:03,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2021-11-25 17:59:03,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2021-11-25 17:59:03,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2021-11-25 17:59:03,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2021-11-25 17:59:03,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2021-11-25 17:59:03,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2021-11-25 17:59:03,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2021-11-25 17:59:03,805 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2021-11-25 17:59:03,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2021-11-25 17:59:03,806 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2021-11-25 17:59:03,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2021-11-25 17:59:03,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2021-11-25 17:59:03,807 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2021-11-25 17:59:03,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2021-11-25 17:59:03,808 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2021-11-25 17:59:03,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2021-11-25 17:59:03,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2021-11-25 17:59:03,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2021-11-25 17:59:03,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2021-11-25 17:59:03,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2021-11-25 17:59:03,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2021-11-25 17:59:03,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2021-11-25 17:59:03,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2021-11-25 17:59:03,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2021-11-25 17:59:03,812 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2021-11-25 17:59:03,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2021-11-25 17:59:03,813 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2021-11-25 17:59:03,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2021-11-25 17:59:03,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2021-11-25 17:59:03,814 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2021-11-25 17:59:03,815 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2021-11-25 17:59:03,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2021-11-25 17:59:03,816 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2021-11-25 17:59:03,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2021-11-25 17:59:03,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2021-11-25 17:59:03,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2021-11-25 17:59:03,818 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2021-11-25 17:59:03,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2021-11-25 17:59:03,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2021-11-25 17:59:03,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2021-11-25 17:59:03,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2021-11-25 17:59:03,820 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2021-11-25 17:59:03,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2021-11-25 17:59:03,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2021-11-25 17:59:03,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2021-11-25 17:59:03,822 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2021-11-25 17:59:03,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2021-11-25 17:59:03,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2021-11-25 17:59:03,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2021-11-25 17:59:03,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2021-11-25 17:59:03,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2021-11-25 17:59:03,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2021-11-25 17:59:03,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2021-11-25 17:59:03,826 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2021-11-25 17:59:03,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2021-11-25 17:59:03,827 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2021-11-25 17:59:03,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2021-11-25 17:59:03,828 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2021-11-25 17:59:03,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2021-11-25 17:59:03,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2021-11-25 17:59:03,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2021-11-25 17:59:03,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2021-11-25 17:59:03,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2021-11-25 17:59:03,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2021-11-25 17:59:03,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2021-11-25 17:59:03,832 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2021-11-25 17:59:03,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2021-11-25 17:59:03,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2021-11-25 17:59:03,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2021-11-25 17:59:03,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:59:03,905 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:59:04,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2021-11-25 17:59:04,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2021-11-25 17:59:04,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2021-11-25 17:59:04,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2021-11-25 17:59:04,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2021-11-25 17:59:04,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2021-11-25 17:59:04,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2021-11-25 17:59:04,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2021-11-25 17:59:04,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2021-11-25 17:59:04,839 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2021-11-25 17:59:04,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2021-11-25 17:59:04,840 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2021-11-25 17:59:04,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2021-11-25 17:59:04,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2021-11-25 17:59:04,841 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2021-11-25 17:59:04,842 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2021-11-25 17:59:04,842 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2021-11-25 17:59:04,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2021-11-25 17:59:04,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2021-11-25 17:59:04,843 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2021-11-25 17:59:04,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2021-11-25 17:59:04,844 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2021-11-25 17:59:04,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2021-11-25 17:59:04,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2021-11-25 17:59:04,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2021-11-25 17:59:04,846 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2021-11-25 17:59:04,847 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2021-11-25 17:59:04,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2021-11-25 17:59:04,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2021-11-25 17:59:04,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2021-11-25 17:59:04,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2021-11-25 17:59:04,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2021-11-25 17:59:04,849 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2021-11-25 17:59:04,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2021-11-25 17:59:04,851 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2021-11-25 17:59:04,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2021-11-25 17:59:04,852 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2021-11-25 17:59:04,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2021-11-25 17:59:04,853 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2021-11-25 17:59:04,854 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2021-11-25 17:59:04,855 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2021-11-25 17:59:04,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2021-11-25 17:59:04,857 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2021-11-25 17:59:04,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2021-11-25 17:59:04,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2021-11-25 17:59:04,859 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2021-11-25 17:59:04,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2021-11-25 17:59:04,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2021-11-25 17:59:04,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2021-11-25 17:59:04,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2021-11-25 17:59:04,861 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2021-11-25 17:59:04,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2021-11-25 17:59:04,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2021-11-25 17:59:04,863 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2021-11-25 17:59:04,865 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2021-11-25 17:59:04,866 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2021-11-25 17:59:04,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2021-11-25 17:59:04,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2021-11-25 17:59:04,871 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2021-11-25 17:59:04,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2021-11-25 17:59:04,872 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2021-11-25 17:59:04,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2021-11-25 17:59:04,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2021-11-25 17:59:04,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2021-11-25 17:59:04,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2021-11-25 17:59:04,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2021-11-25 17:59:04,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2021-11-25 17:59:04,888 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2021-11-25 17:59:04,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2021-11-25 17:59:04,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2021-11-25 17:59:04,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2021-11-25 17:59:04,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2021-11-25 17:59:04,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2021-11-25 17:59:04,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2021-11-25 17:59:04,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2021-11-25 17:59:04,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2021-11-25 17:59:04,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2021-11-25 17:59:04,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2021-11-25 17:59:04,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2021-11-25 17:59:04,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2021-11-25 17:59:04,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2021-11-25 17:59:04,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2021-11-25 17:59:04,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2021-11-25 17:59:04,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2021-11-25 17:59:04,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2021-11-25 17:59:04,901 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2021-11-25 17:59:04,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2021-11-25 17:59:04,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2021-11-25 17:59:04,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:59:05,274 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:59:05,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05 WrapperNode [2021-11-25 17:59:05,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:59:05,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:59:05,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:59:05,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:59:05,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:05,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:05,916 INFO L137 Inliner]: procedures = 963, calls = 5049, calls flagged for inlining = 494, calls inlined = 305, statements flattened = 9468 [2021-11-25 17:59:05,916 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:59:05,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:59:05,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:59:05,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:59:05,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:05,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:05,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:05,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:06,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:06,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:06,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:06,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:59:06,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:59:06,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:59:06,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:59:06,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (1/1) ... [2021-11-25 17:59:06,490 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:59:06,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:59:06,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:59:06,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:59:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_timer [2021-11-25 17:59:06,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_timer [2021-11-25 17:59:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-25 17:59:06,573 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-25 17:59:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2021-11-25 17:59:06,573 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2021-11-25 17:59:06,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-11-25 17:59:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-11-25 17:59:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_heartbeat [2021-11-25 17:59:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_heartbeat [2021-11-25 17:59:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure sock_init_data [2021-11-25 17:59:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_init_data [2021-11-25 17:59:06,574 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-25 17:59:06,574 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-25 17:59:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_135 [2021-11-25 17:59:06,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_135 [2021-11-25 17:59:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure proto_unregister [2021-11-25 17:59:06,575 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_unregister [2021-11-25 17:59:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 17:59:06,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-25 17:59:06,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 17:59:06,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-25 17:59:06,576 INFO L130 BoogieDeclarations]: Found specification of procedure rose_add_loopback_node [2021-11-25 17:59:06,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_add_loopback_node [2021-11-25 17:59:06,576 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-11-25 17:59:06,576 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-11-25 17:59:06,576 INFO L130 BoogieDeclarations]: Found specification of procedure sock_set_flag [2021-11-25 17:59:06,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_set_flag [2021-11-25 17:59:06,576 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 17:59:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2021-11-25 17:59:06,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2021-11-25 17:59:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure rose_send_frame [2021-11-25 17:59:06,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_send_frame [2021-11-25 17:59:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure rose_destroy_socket [2021-11-25 17:59:06,577 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_destroy_socket [2021-11-25 17:59:06,577 INFO L130 BoogieDeclarations]: Found specification of procedure rose_write_internal [2021-11-25 17:59:06,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_write_internal [2021-11-25 17:59:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2021-11-25 17:59:06,578 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2021-11-25 17:59:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_loopback_node [2021-11-25 17:59:06,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_loopback_node [2021-11-25 17:59:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 17:59:06,578 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 17:59:06,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-25 17:59:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-25 17:59:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure rose_requeue_frames [2021-11-25 17:59:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_requeue_frames [2021-11-25 17:59:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure rose_rx_call_request [2021-11-25 17:59:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_rx_call_request [2021-11-25 17:59:06,579 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-11-25 17:59:06,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-11-25 17:59:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure rose_dev_get [2021-11-25 17:59:06,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_dev_get [2021-11-25 17:59:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2021-11-25 17:59:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 17:59:06,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 17:59:06,580 INFO L130 BoogieDeclarations]: Found specification of procedure rose_new_lci [2021-11-25 17:59:06,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_new_lci [2021-11-25 17:59:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2021-11-25 17:59:06,581 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2021-11-25 17:59:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 17:59:06,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-25 17:59:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 17:59:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 17:59:06,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-25 17:59:06,581 INFO L130 BoogieDeclarations]: Found specification of procedure rose_neigh_open [2021-11-25 17:59:06,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_neigh_open [2021-11-25 17:59:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 17:59:06,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 17:59:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure rose_validate_nr [2021-11-25 17:59:06,582 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_validate_nr [2021-11-25 17:59:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 17:59:06,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-25 17:59:06,582 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-11-25 17:59:06,583 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-11-25 17:59:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2021-11-25 17:59:06,583 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2021-11-25 17:59:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2021-11-25 17:59:06,583 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2021-11-25 17:59:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 17:59:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:59:06,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 17:59:06,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 17:59:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 17:59:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure ax2asc [2021-11-25 17:59:06,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ax2asc [2021-11-25 17:59:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-25 17:59:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t0timer [2021-11-25 17:59:06,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t0timer [2021-11-25 17:59:06,584 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_restart_request [2021-11-25 17:59:06,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_restart_request [2021-11-25 17:59:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-11-25 17:59:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-11-25 17:59:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 17:59:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 17:59:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 17:59:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 17:59:06,585 INFO L130 BoogieDeclarations]: Found specification of procedure rose_process_rx_frame [2021-11-25 17:59:06,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_process_rx_frame [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:59:06,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-11-25 17:59:06,586 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2021-11-25 17:59:06,586 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-25 17:59:06,586 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put [2021-11-25 17:59:06,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put [2021-11-25 17:59:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 17:59:06,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 17:59:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2021-11-25 17:59:06,587 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2021-11-25 17:59:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure rose_clear_queues [2021-11-25 17:59:06,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_clear_queues [2021-11-25 17:59:06,587 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-11-25 17:59:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-11-25 17:59:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-25 17:59:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-25 17:59:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 17:59:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-25 17:59:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure rose_insert_socket [2021-11-25 17:59:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_insert_socket [2021-11-25 17:59:06,588 INFO L130 BoogieDeclarations]: Found specification of procedure rose_parse_facilities [2021-11-25 17:59:06,588 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_parse_facilities [2021-11-25 17:59:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 17:59:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 17:59:06,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-25 17:59:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 17:59:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 17:59:06,589 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 17:59:06,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_125 [2021-11-25 17:59:06,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_125 [2021-11-25 17:59:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126 [2021-11-25 17:59:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126 [2021-11-25 17:59:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 17:59:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 17:59:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 17:59:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 17:59:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127___0 [2021-11-25 17:59:06,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127___0 [2021-11-25 17:59:06,590 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_idletimer [2021-11-25 17:59:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_idletimer [2021-11-25 17:59:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-25 17:59:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-25 17:59:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_link [2021-11-25 17:59:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_link [2021-11-25 17:59:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 17:59:06,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-25 17:59:06,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 17:59:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-25 17:59:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure rose_find_socket [2021-11-25 17:59:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_find_socket [2021-11-25 17:59:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_node [2021-11-25 17:59:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_node [2021-11-25 17:59:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-11-25 17:59:06,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-11-25 17:59:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 17:59:06,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 17:59:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 17:59:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_display_timer [2021-11-25 17:59:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_display_timer [2021-11-25 17:59:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_route [2021-11-25 17:59:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_route [2021-11-25 17:59:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_listen_release [2021-11-25 17:59:06,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_listen_release [2021-11-25 17:59:06,593 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmp [2021-11-25 17:59:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmp [2021-11-25 17:59:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_ftimer [2021-11-25 17:59:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_ftimer [2021-11-25 17:59:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_route_by_neigh [2021-11-25 17:59:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_route_by_neigh [2021-11-25 17:59:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 17:59:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-25 17:59:06,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 17:59:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 17:59:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_134 [2021-11-25 17:59:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_134 [2021-11-25 17:59:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-25 17:59:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-25 17:59:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 17:59:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 17:59:06,595 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-25 17:59:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-25 17:59:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 17:59:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-25 17:59:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure rose_setup [2021-11-25 17:59:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_setup [2021-11-25 17:59:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wmem_alloc_get [2021-11-25 17:59:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wmem_alloc_get [2021-11-25 17:59:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure sk_alloc [2021-11-25 17:59:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_alloc [2021-11-25 17:59:06,596 INFO L130 BoogieDeclarations]: Found specification of procedure ax25cmp [2021-11-25 17:59:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25cmp [2021-11-25 17:59:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 17:59:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 17:59:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2021-11-25 17:59:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2021-11-25 17:59:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t3timer [2021-11-25 17:59:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t3timer [2021-11-25 17:59:06,597 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-25 17:59:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-25 17:59:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 17:59:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 17:59:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-25 17:59:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-25 17:59:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_neigh [2021-11-25 17:59:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_neigh [2021-11-25 17:59:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 17:59:06,598 INFO L130 BoogieDeclarations]: Found specification of procedure rose_disconnect [2021-11-25 17:59:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_disconnect [2021-11-25 17:59:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 17:59:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 17:59:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2021-11-25 17:59:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2021-11-25 17:59:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 17:59:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure sk_rmem_alloc_get [2021-11-25 17:59:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_rmem_alloc_get [2021-11-25 17:59:06,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-25 17:59:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-25 17:59:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 17:59:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-25 17:59:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-25 17:59:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 17:59:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 17:59:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_free_lci [2021-11-25 17:59:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_free_lci [2021-11-25 17:59:06,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 17:59:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 17:59:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 17:59:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-25 17:59:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure rose2asc [2021-11-25 17:59:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure rose2asc [2021-11-25 17:59:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure rose_get_neigh [2021-11-25 17:59:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_get_neigh [2021-11-25 17:59:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 17:59:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 17:59:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 17:59:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-25 17:59:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-11-25 17:59:06,602 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-11-25 17:59:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2021-11-25 17:59:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2021-11-25 17:59:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kick [2021-11-25 17:59:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kick [2021-11-25 17:59:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_149 [2021-11-25 17:59:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_149 [2021-11-25 17:59:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t2timer [2021-11-25 17:59:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t2timer [2021-11-25 17:59:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2021-11-25 17:59:06,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2021-11-25 17:59:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:59:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 17:59:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2021-11-25 17:59:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2021-11-25 17:59:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmpm [2021-11-25 17:59:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmpm [2021-11-25 17:59:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure rose_enquiry_response [2021-11-25 17:59:06,604 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_enquiry_response [2021-11-25 17:59:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 17:59:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 17:59:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 17:59:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-25 17:59:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_transport_header [2021-11-25 17:59:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_transport_header [2021-11-25 17:59:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-11-25 17:59:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-11-25 17:59:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kill_by_neigh [2021-11-25 17:59:06,605 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kill_by_neigh [2021-11-25 17:59:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-11-25 17:59:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-11-25 17:59:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_t0timer [2021-11-25 17:59:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_t0timer [2021-11-25 17:59:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 17:59:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 17:59:06,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 17:59:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 17:59:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-25 17:59:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-25 17:59:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-25 17:59:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-25 17:59:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-25 17:59:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure skb_orphan [2021-11-25 17:59:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_orphan [2021-11-25 17:59:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:59:06,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-25 17:59:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 17:59:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-25 17:59:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-25 17:59:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 17:59:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-25 17:59:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_150 [2021-11-25 17:59:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_150 [2021-11-25 17:59:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 17:59:06,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 17:59:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_hash_from_sk [2021-11-25 17:59:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_hash_from_sk [2021-11-25 17:59:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_frame [2021-11-25 17:59:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_frame [2021-11-25 17:59:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 17:59:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 17:59:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_idletimer [2021-11-25 17:59:06,609 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_idletimer [2021-11-25 17:59:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 17:59:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-25 17:59:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 17:59:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 17:59:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127 [2021-11-25 17:59:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127 [2021-11-25 17:59:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_128 [2021-11-25 17:59:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_128 [2021-11-25 17:59:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 17:59:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-25 17:59:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_open [2021-11-25 17:59:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_open [2021-11-25 17:59:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure rose_nodes_open [2021-11-25 17:59:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_nodes_open [2021-11-25 17:59:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 17:59:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-25 17:59:06,611 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_clear_request [2021-11-25 17:59:06,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_clear_request [2021-11-25 17:59:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put___0 [2021-11-25 17:59:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put___0 [2021-11-25 17:59:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126___0 [2021-11-25 17:59:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126___0 [2021-11-25 17:59:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 17:59:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 17:59:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 17:59:06,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-25 17:59:06,612 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-25 17:59:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-25 17:59:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure asc2ax [2021-11-25 17:59:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure asc2ax [2021-11-25 17:59:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-11-25 17:59:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-11-25 17:59:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-11-25 17:59:06,613 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-11-25 17:59:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:59:06,613 INFO L130 BoogieDeclarations]: Found specification of procedure rose_frames_acked [2021-11-25 17:59:06,614 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_frames_acked [2021-11-25 17:59:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure net_eq [2021-11-25 17:59:06,614 INFO L138 BoogieDeclarations]: Found implementation of procedure net_eq [2021-11-25 17:59:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-25 17:59:06,614 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-25 17:59:07,889 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:59:07,895 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:59:08,464 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:00:04,598 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:00:05,946 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:00:05,947 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-25 18:00:05,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:05 BoogieIcfgContainer [2021-11-25 18:00:05,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:00:05,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:00:05,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:00:05,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:00:05,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:58:55" (1/3) ... [2021-11-25 18:00:05,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf2f491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:05, skipping insertion in model container [2021-11-25 18:00:05,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:05" (2/3) ... [2021-11-25 18:00:05,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bf2f491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:05, skipping insertion in model container [2021-11-25 18:00:05,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:05" (3/3) ... [2021-11-25 18:00:05,961 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---net--rose--rose.ko.cil.i [2021-11-25 18:00:05,966 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:00:05,966 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2021-11-25 18:00:06,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:00:06,034 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 18:00:06,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2021-11-25 18:00:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 2337 states, 1358 states have (on average 1.349779086892489) internal successors, (1833), 1502 states have internal predecessors, (1833), 791 states have call successors, (791), 162 states have call predecessors, (791), 161 states have return successors, (779), 738 states have call predecessors, (779), 779 states have call successors, (779) [2021-11-25 18:00:06,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 18:00:06,122 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:06,123 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:00:06,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === 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 24 more)] === [2021-11-25 18:00:06,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:06,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1789477042, now seen corresponding path program 1 times [2021-11-25 18:00:06,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:06,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753475159] [2021-11-25 18:00:06,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:06,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:07,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:07,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:07,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753475159] [2021-11-25 18:00:07,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753475159] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:07,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:07,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:00:07,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730829409] [2021-11-25 18:00:07,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:07,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:00:07,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:07,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:00:07,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:00:07,174 INFO L87 Difference]: Start difference. First operand has 2337 states, 1358 states have (on average 1.349779086892489) internal successors, (1833), 1502 states have internal predecessors, (1833), 791 states have call successors, (791), 162 states have call predecessors, (791), 161 states have return successors, (779), 738 states have call predecessors, (779), 779 states have call successors, (779) Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:00:26,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:26,282 INFO L93 Difference]: Finished difference Result 5465 states and 8125 transitions. [2021-11-25 18:00:26,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:00:26,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2021-11-25 18:00:26,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:26,339 INFO L225 Difference]: With dead ends: 5465 [2021-11-25 18:00:26,340 INFO L226 Difference]: Without dead ends: 3117 [2021-11-25 18:00:26,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:00:26,372 INFO L933 BasicCegarLoop]: 3492 mSDtfsCounter, 3120 mSDsluCounter, 11573 mSDsCounter, 0 mSdLazyCounter, 3198 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3127 SdHoareTripleChecker+Valid, 13717 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:26,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3127 Valid, 13717 Invalid, 3201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 3198 Invalid, 0 Unknown, 0 Unchecked, 18.4s Time] [2021-11-25 18:00:26,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2021-11-25 18:00:26,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2021-11-25 18:00:26,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3109 states, 1842 states have (on average 1.3268186753528772) internal successors, (2444), 2000 states have internal predecessors, (2444), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:26,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4436 transitions. [2021-11-25 18:00:26,711 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4436 transitions. Word has length 16 [2021-11-25 18:00:26,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:26,711 INFO L470 AbstractCegarLoop]: Abstraction has 3109 states and 4436 transitions. [2021-11-25 18:00:26,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:00:26,712 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4436 transitions. [2021-11-25 18:00:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 18:00:26,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:26,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:00:26,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:00:26,714 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-25 18:00:26,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:26,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1368467429, now seen corresponding path program 1 times [2021-11-25 18:00:26,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:26,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474223316] [2021-11-25 18:00:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:26,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:27,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:00:27,013 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:27,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474223316] [2021-11-25 18:00:27,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474223316] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:27,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:27,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:27,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898070267] [2021-11-25 18:00:27,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:27,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:27,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:27,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:27,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:27,017 INFO L87 Difference]: Start difference. First operand 3109 states and 4436 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:00:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:29,611 INFO L93 Difference]: Finished difference Result 6206 states and 8944 transitions. [2021-11-25 18:00:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:29,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-11-25 18:00:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:29,643 INFO L225 Difference]: With dead ends: 6206 [2021-11-25 18:00:29,644 INFO L226 Difference]: Without dead ends: 3103 [2021-11-25 18:00:29,666 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 18:00:29,668 INFO L933 BasicCegarLoop]: 2980 mSDtfsCounter, 3328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:29,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3328 Valid, 2980 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 18:00:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2021-11-25 18:00:29,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103. [2021-11-25 18:00:29,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 1837 states have (on average 1.3255307566684813) internal successors, (2435), 1994 states have internal predecessors, (2435), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4427 transitions. [2021-11-25 18:00:29,866 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4427 transitions. Word has length 19 [2021-11-25 18:00:29,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:29,867 INFO L470 AbstractCegarLoop]: Abstraction has 3103 states and 4427 transitions. [2021-11-25 18:00:29,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 18:00:29,868 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4427 transitions. [2021-11-25 18:00:29,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-25 18:00:29,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:29,870 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:00:29,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:00:29,873 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 24 more)] === [2021-11-25 18:00:29,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:29,873 INFO L85 PathProgramCache]: Analyzing trace with hash -45605886, now seen corresponding path program 1 times [2021-11-25 18:00:29,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:29,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687249522] [2021-11-25 18:00:29,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:29,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:30,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:30,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687249522] [2021-11-25 18:00:30,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687249522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:30,156 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:30,156 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:30,156 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737173179] [2021-11-25 18:00:30,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:30,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:30,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:30,158 INFO L87 Difference]: Start difference. First operand 3103 states and 4427 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:00:34,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:34,439 INFO L93 Difference]: Finished difference Result 3103 states and 4427 transitions. [2021-11-25 18:00:34,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:34,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 38 [2021-11-25 18:00:34,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:34,467 INFO L225 Difference]: With dead ends: 3103 [2021-11-25 18:00:34,467 INFO L226 Difference]: Without dead ends: 3101 [2021-11-25 18:00:34,469 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 18:00:34,470 INFO L933 BasicCegarLoop]: 2977 mSDtfsCounter, 3321 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 5954 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:34,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 5954 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:00:34,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2021-11-25 18:00:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3101. [2021-11-25 18:00:34,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3101 states, 1836 states have (on average 1.3251633986928104) internal successors, (2433), 1992 states have internal predecessors, (2433), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:34,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4425 transitions. [2021-11-25 18:00:34,763 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4425 transitions. Word has length 38 [2021-11-25 18:00:34,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:34,764 INFO L470 AbstractCegarLoop]: Abstraction has 3101 states and 4425 transitions. [2021-11-25 18:00:34,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 18:00:34,764 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4425 transitions. [2021-11-25 18:00:34,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-25 18:00:34,772 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:34,772 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:00:34,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:00:34,773 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 24 more)] === [2021-11-25 18:00:34,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:34,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1203140962, now seen corresponding path program 1 times [2021-11-25 18:00:34,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:34,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988223759] [2021-11-25 18:00:34,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:34,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:35,087 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:35,087 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:35,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988223759] [2021-11-25 18:00:35,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988223759] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:35,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:35,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:35,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909215586] [2021-11-25 18:00:35,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:35,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:35,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:35,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:35,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:35,090 INFO L87 Difference]: Start difference. First operand 3101 states and 4425 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 18:00:39,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:39,111 INFO L93 Difference]: Finished difference Result 3101 states and 4425 transitions. [2021-11-25 18:00:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:39,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 43 [2021-11-25 18:00:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:39,138 INFO L225 Difference]: With dead ends: 3101 [2021-11-25 18:00:39,139 INFO L226 Difference]: Without dead ends: 3099 [2021-11-25 18:00:39,142 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 18:00:39,143 INFO L933 BasicCegarLoop]: 2975 mSDtfsCounter, 3318 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 5950 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:39,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3320 Valid, 5950 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 18:00:39,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2021-11-25 18:00:39,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3099. [2021-11-25 18:00:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 1835 states have (on average 1.3247956403269754) internal successors, (2431), 1990 states have internal predecessors, (2431), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 4423 transitions. [2021-11-25 18:00:39,323 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 4423 transitions. Word has length 43 [2021-11-25 18:00:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:39,324 INFO L470 AbstractCegarLoop]: Abstraction has 3099 states and 4423 transitions. [2021-11-25 18:00:39,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-25 18:00:39,324 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 4423 transitions. [2021-11-25 18:00:39,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 18:00:39,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:39,326 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:00:39,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:00:39,327 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 24 more)] === [2021-11-25 18:00:39,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:39,327 INFO L85 PathProgramCache]: Analyzing trace with hash -264539293, now seen corresponding path program 1 times [2021-11-25 18:00:39,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:39,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518139844] [2021-11-25 18:00:39,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:39,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:39,586 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:39,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518139844] [2021-11-25 18:00:39,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518139844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:39,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:39,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:39,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734371256] [2021-11-25 18:00:39,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:39,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:39,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:39,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:39,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:39,589 INFO L87 Difference]: Start difference. First operand 3099 states and 4423 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 18:00:43,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:43,890 INFO L93 Difference]: Finished difference Result 3099 states and 4423 transitions. [2021-11-25 18:00:43,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:43,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 48 [2021-11-25 18:00:43,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:43,919 INFO L225 Difference]: With dead ends: 3099 [2021-11-25 18:00:43,919 INFO L226 Difference]: Without dead ends: 3097 [2021-11-25 18:00:43,922 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 18:00:43,923 INFO L933 BasicCegarLoop]: 2973 mSDtfsCounter, 3315 mSDsluCounter, 3330 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:43,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3317 Valid, 5946 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 18:00:43,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2021-11-25 18:00:44,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2021-11-25 18:00:44,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 1834 states have (on average 1.3244274809160306) internal successors, (2429), 1988 states have internal predecessors, (2429), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4421 transitions. [2021-11-25 18:00:44,111 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4421 transitions. Word has length 48 [2021-11-25 18:00:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:44,112 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 4421 transitions. [2021-11-25 18:00:44,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (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 18:00:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4421 transitions. [2021-11-25 18:00:44,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-25 18:00:44,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:44,114 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:00:44,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:00:44,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 24 more)] === [2021-11-25 18:00:44,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:44,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1808844682, now seen corresponding path program 1 times [2021-11-25 18:00:44,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:44,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768801009] [2021-11-25 18:00:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:44,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:44,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:44,366 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:44,366 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:44,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768801009] [2021-11-25 18:00:44,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768801009] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:44,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:44,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:44,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672527174] [2021-11-25 18:00:44,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:44,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:44,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:44,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:44,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:44,369 INFO L87 Difference]: Start difference. First operand 3097 states and 4421 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 18:00:48,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:48,673 INFO L93 Difference]: Finished difference Result 3097 states and 4421 transitions. [2021-11-25 18:00:48,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:48,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 53 [2021-11-25 18:00:48,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:48,702 INFO L225 Difference]: With dead ends: 3097 [2021-11-25 18:00:48,703 INFO L226 Difference]: Without dead ends: 3095 [2021-11-25 18:00:48,705 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 18:00:48,706 INFO L933 BasicCegarLoop]: 2971 mSDtfsCounter, 3312 mSDsluCounter, 3328 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 5942 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:48,707 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3314 Valid, 5942 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 18:00:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2021-11-25 18:00:48,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3095. [2021-11-25 18:00:48,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3095 states, 1833 states have (on average 1.3240589198036006) internal successors, (2427), 1986 states have internal predecessors, (2427), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:48,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4419 transitions. [2021-11-25 18:00:48,906 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4419 transitions. Word has length 53 [2021-11-25 18:00:48,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:48,906 INFO L470 AbstractCegarLoop]: Abstraction has 3095 states and 4419 transitions. [2021-11-25 18:00:48,907 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 18:00:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4419 transitions. [2021-11-25 18:00:48,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-25 18:00:48,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:48,909 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:00:48,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:00:48,910 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 24 more)] === [2021-11-25 18:00:48,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash -2076250112, now seen corresponding path program 1 times [2021-11-25 18:00:48,910 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:48,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644222030] [2021-11-25 18:00:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:48,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:49,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:49,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:49,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644222030] [2021-11-25 18:00:49,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644222030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:49,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:49,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:49,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845973379] [2021-11-25 18:00:49,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:49,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:49,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:49,148 INFO L87 Difference]: Start difference. First operand 3095 states and 4419 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 18:00:53,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:53,337 INFO L93 Difference]: Finished difference Result 3095 states and 4419 transitions. [2021-11-25 18:00:53,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:53,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 58 [2021-11-25 18:00:53,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:53,362 INFO L225 Difference]: With dead ends: 3095 [2021-11-25 18:00:53,363 INFO L226 Difference]: Without dead ends: 3093 [2021-11-25 18:00:53,365 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 18:00:53,366 INFO L933 BasicCegarLoop]: 2969 mSDtfsCounter, 3309 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:53,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3311 Valid, 5938 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:00:53,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2021-11-25 18:00:53,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 3093. [2021-11-25 18:00:53,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3093 states, 1832 states have (on average 1.3236899563318778) internal successors, (2425), 1984 states have internal predecessors, (2425), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4417 transitions. [2021-11-25 18:00:53,676 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4417 transitions. Word has length 58 [2021-11-25 18:00:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:53,677 INFO L470 AbstractCegarLoop]: Abstraction has 3093 states and 4417 transitions. [2021-11-25 18:00:53,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (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 18:00:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4417 transitions. [2021-11-25 18:00:53,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-25 18:00:53,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:53,679 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2021-11-25 18:00:53,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:00:53,680 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 24 more)] === [2021-11-25 18:00:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:53,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1268868399, now seen corresponding path program 1 times [2021-11-25 18:00:53,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:53,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545069612] [2021-11-25 18:00:53,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:53,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:53,932 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:53,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545069612] [2021-11-25 18:00:53,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545069612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:53,932 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:53,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:53,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884148147] [2021-11-25 18:00:53,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:53,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:53,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:53,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:53,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:53,934 INFO L87 Difference]: Start difference. First operand 3093 states and 4417 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 18:00:58,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:58,104 INFO L93 Difference]: Finished difference Result 3093 states and 4417 transitions. [2021-11-25 18:00:58,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:00:58,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 63 [2021-11-25 18:00:58,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:58,126 INFO L225 Difference]: With dead ends: 3093 [2021-11-25 18:00:58,127 INFO L226 Difference]: Without dead ends: 3091 [2021-11-25 18:00:58,129 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 18:00:58,130 INFO L933 BasicCegarLoop]: 2967 mSDtfsCounter, 3306 mSDsluCounter, 3324 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:58,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3308 Valid, 5934 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:00:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2021-11-25 18:00:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 3091. [2021-11-25 18:00:58,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 1831 states have (on average 1.3233205898416167) internal successors, (2423), 1982 states have internal predecessors, (2423), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:00:58,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4415 transitions. [2021-11-25 18:00:58,343 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4415 transitions. Word has length 63 [2021-11-25 18:00:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:58,343 INFO L470 AbstractCegarLoop]: Abstraction has 3091 states and 4415 transitions. [2021-11-25 18:00:58,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (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 18:00:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4415 transitions. [2021-11-25 18:00:58,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-25 18:00:58,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:58,347 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:00:58,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 18:00:58,347 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-25 18:00:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:58,348 INFO L85 PathProgramCache]: Analyzing trace with hash 9260814, now seen corresponding path program 1 times [2021-11-25 18:00:58,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:58,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384305564] [2021-11-25 18:00:58,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:58,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:58,576 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:00:58,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:58,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384305564] [2021-11-25 18:00:58,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384305564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:58,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:58,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:00:58,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672736757] [2021-11-25 18:00:58,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:58,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:00:58,579 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:58,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:00:58,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:00:58,580 INFO L87 Difference]: Start difference. First operand 3091 states and 4415 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 18:01:01,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:01,948 INFO L93 Difference]: Finished difference Result 3091 states and 4415 transitions. [2021-11-25 18:01:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 68 [2021-11-25 18:01:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:01,971 INFO L225 Difference]: With dead ends: 3091 [2021-11-25 18:01:01,971 INFO L226 Difference]: Without dead ends: 3089 [2021-11-25 18:01:01,973 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 18:01:01,974 INFO L933 BasicCegarLoop]: 2965 mSDtfsCounter, 3303 mSDsluCounter, 3322 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 5930 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:01,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3305 Valid, 5930 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 18:01:01,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2021-11-25 18:01:02,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3089. [2021-11-25 18:01:02,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3089 states, 1830 states have (on average 1.3229508196721311) internal successors, (2421), 1980 states have internal predecessors, (2421), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:01:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4413 transitions. [2021-11-25 18:01:02,170 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4413 transitions. Word has length 68 [2021-11-25 18:01:02,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:02,171 INFO L470 AbstractCegarLoop]: Abstraction has 3089 states and 4413 transitions. [2021-11-25 18:01:02,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (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 18:01:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4413 transitions. [2021-11-25 18:01:02,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-25 18:01:02,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:02,173 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:02,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 18:01:02,174 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-25 18:01:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -795444470, now seen corresponding path program 1 times [2021-11-25 18:01:02,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:02,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165302301] [2021-11-25 18:01:02,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:02,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:02,410 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:02,410 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:02,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165302301] [2021-11-25 18:01:02,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165302301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:02,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:02,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:02,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531286122] [2021-11-25 18:01:02,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:02,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:02,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:02,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:02,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:02,412 INFO L87 Difference]: Start difference. First operand 3089 states and 4413 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 18:01:05,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:05,708 INFO L93 Difference]: Finished difference Result 3089 states and 4413 transitions. [2021-11-25 18:01:05,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:05,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 73 [2021-11-25 18:01:05,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:05,729 INFO L225 Difference]: With dead ends: 3089 [2021-11-25 18:01:05,729 INFO L226 Difference]: Without dead ends: 3087 [2021-11-25 18:01:05,731 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 18:01:05,732 INFO L933 BasicCegarLoop]: 2963 mSDtfsCounter, 3304 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 5922 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:05,733 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3306 Valid, 5922 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-25 18:01:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2021-11-25 18:01:05,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3087. [2021-11-25 18:01:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 1829 states have (on average 1.3225806451612903) internal successors, (2419), 1978 states have internal predecessors, (2419), 997 states have call successors, (997), 245 states have call predecessors, (997), 244 states have return successors, (995), 948 states have call predecessors, (995), 995 states have call successors, (995) [2021-11-25 18:01:05,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4411 transitions. [2021-11-25 18:01:05,928 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4411 transitions. Word has length 73 [2021-11-25 18:01:05,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:05,929 INFO L470 AbstractCegarLoop]: Abstraction has 3087 states and 4411 transitions. [2021-11-25 18:01:05,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (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 18:01:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4411 transitions. [2021-11-25 18:01:05,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-25 18:01:05,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:05,931 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-25 18:01:05,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 18:01:05,931 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 24 more)] === [2021-11-25 18:01:05,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash 386687834, now seen corresponding path program 1 times [2021-11-25 18:01:05,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:05,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902659098] [2021-11-25 18:01:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:05,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:06,365 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-25 18:01:06,365 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:06,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902659098] [2021-11-25 18:01:06,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902659098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:06,366 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:06,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:01:06,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395892862] [2021-11-25 18:01:06,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:06,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:01:06,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:06,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:01:06,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:01:06,367 INFO L87 Difference]: Start difference. First operand 3087 states and 4411 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:01:14,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:14,331 INFO L93 Difference]: Finished difference Result 5880 states and 8390 transitions. [2021-11-25 18:01:14,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:01:14,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2021-11-25 18:01:14,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:14,367 INFO L225 Difference]: With dead ends: 5880 [2021-11-25 18:01:14,367 INFO L226 Difference]: Without dead ends: 5878 [2021-11-25 18:01:14,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:01:14,372 INFO L933 BasicCegarLoop]: 3673 mSDtfsCounter, 3225 mSDsluCounter, 11026 mSDsCounter, 0 mSdLazyCounter, 1420 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 13660 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:14,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3230 Valid, 13660 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1420 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2021-11-25 18:01:14,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2021-11-25 18:01:14,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5839. [2021-11-25 18:01:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5839 states, 3473 states have (on average 1.3245033112582782) internal successors, (4600), 3748 states have internal predecessors, (4600), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 8366 transitions. [2021-11-25 18:01:14,810 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 8366 transitions. Word has length 74 [2021-11-25 18:01:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:14,811 INFO L470 AbstractCegarLoop]: Abstraction has 5839 states and 8366 transitions. [2021-11-25 18:01:14,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-25 18:01:14,811 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 8366 transitions. [2021-11-25 18:01:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-25 18:01:14,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:14,818 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:14,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 18:01:14,819 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 24 more)] === [2021-11-25 18:01:14,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:14,819 INFO L85 PathProgramCache]: Analyzing trace with hash 82211661, now seen corresponding path program 1 times [2021-11-25 18:01:14,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:14,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512130971] [2021-11-25 18:01:14,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:14,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:15,061 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:15,062 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:15,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512130971] [2021-11-25 18:01:15,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512130971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:15,062 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:15,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:15,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078149380] [2021-11-25 18:01:15,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:15,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:15,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:15,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:15,065 INFO L87 Difference]: Start difference. First operand 5839 states and 8366 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, (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 18:01:18,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:18,850 INFO L93 Difference]: Finished difference Result 5839 states and 8366 transitions. [2021-11-25 18:01:18,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:18,851 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, (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 18:01:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:18,878 INFO L225 Difference]: With dead ends: 5839 [2021-11-25 18:01:18,878 INFO L226 Difference]: Without dead ends: 5837 [2021-11-25 18:01:18,882 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 18:01:18,882 INFO L933 BasicCegarLoop]: 2961 mSDtfsCounter, 3296 mSDsluCounter, 3318 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 5922 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:18,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3298 Valid, 5922 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 18:01:18,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2021-11-25 18:01:19,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 5837. [2021-11-25 18:01:19,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5837 states, 3472 states have (on average 1.3240207373271888) internal successors, (4597), 3746 states have internal predecessors, (4597), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 8363 transitions. [2021-11-25 18:01:19,445 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 8363 transitions. Word has length 75 [2021-11-25 18:01:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:19,446 INFO L470 AbstractCegarLoop]: Abstraction has 5837 states and 8363 transitions. [2021-11-25 18:01:19,446 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, (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 18:01:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 8363 transitions. [2021-11-25 18:01:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-25 18:01:19,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:19,448 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:19,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 18:01:19,449 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 24 more)] === [2021-11-25 18:01:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1519069018, now seen corresponding path program 1 times [2021-11-25 18:01:19,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:19,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234879534] [2021-11-25 18:01:19,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:19,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:19,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:19,645 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:19,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234879534] [2021-11-25 18:01:19,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234879534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:19,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:19,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:19,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780747396] [2021-11-25 18:01:19,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:19,646 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:19,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:19,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:19,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:19,647 INFO L87 Difference]: Start difference. First operand 5837 states and 8363 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, (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 18:01:23,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:23,148 INFO L93 Difference]: Finished difference Result 5837 states and 8363 transitions. [2021-11-25 18:01:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:23,149 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, (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 18:01:23,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:23,175 INFO L225 Difference]: With dead ends: 5837 [2021-11-25 18:01:23,175 INFO L226 Difference]: Without dead ends: 5835 [2021-11-25 18:01:23,180 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 18:01:23,180 INFO L933 BasicCegarLoop]: 2959 mSDtfsCounter, 3295 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:23,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3297 Valid, 5918 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 18:01:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2021-11-25 18:01:23,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5835. [2021-11-25 18:01:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5835 states, 3471 states have (on average 1.323537885335638) internal successors, (4594), 3744 states have internal predecessors, (4594), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:23,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 8360 transitions. [2021-11-25 18:01:23,596 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 8360 transitions. Word has length 80 [2021-11-25 18:01:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:23,597 INFO L470 AbstractCegarLoop]: Abstraction has 5835 states and 8360 transitions. [2021-11-25 18:01:23,597 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, (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 18:01:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 8360 transitions. [2021-11-25 18:01:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-25 18:01:23,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:23,600 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 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 18:01:23,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 18:01:23,600 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 24 more)] === [2021-11-25 18:01:23,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1838753774, now seen corresponding path program 1 times [2021-11-25 18:01:23,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:23,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317435238] [2021-11-25 18:01:23,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:23,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:23,805 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:23,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317435238] [2021-11-25 18:01:23,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317435238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:23,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:23,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:23,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501498848] [2021-11-25 18:01:23,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:23,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:23,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:23,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:23,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:23,808 INFO L87 Difference]: Start difference. First operand 5835 states and 8360 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 18:01:27,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:27,935 INFO L93 Difference]: Finished difference Result 5835 states and 8360 transitions. [2021-11-25 18:01:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 18:01:27,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:27,968 INFO L225 Difference]: With dead ends: 5835 [2021-11-25 18:01:27,968 INFO L226 Difference]: Without dead ends: 5833 [2021-11-25 18:01:27,972 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 18:01:27,973 INFO L933 BasicCegarLoop]: 2957 mSDtfsCounter, 3292 mSDsluCounter, 3314 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:27,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3294 Valid, 5914 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2021-11-25 18:01:27,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2021-11-25 18:01:28,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5833. [2021-11-25 18:01:28,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3470 states have (on average 1.3230547550432277) internal successors, (4591), 3742 states have internal predecessors, (4591), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8357 transitions. [2021-11-25 18:01:28,553 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8357 transitions. Word has length 85 [2021-11-25 18:01:28,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:28,554 INFO L470 AbstractCegarLoop]: Abstraction has 5833 states and 8357 transitions. [2021-11-25 18:01:28,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (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 18:01:28,554 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8357 transitions. [2021-11-25 18:01:28,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-25 18:01:28,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:28,557 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:28,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 18:01:28,558 INFO L402 AbstractCegarLoop]: === Iteration 15 === 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 24 more)] === [2021-11-25 18:01:28,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:28,559 INFO L85 PathProgramCache]: Analyzing trace with hash 298845296, now seen corresponding path program 1 times [2021-11-25 18:01:28,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:28,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815540038] [2021-11-25 18:01:28,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:28,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-25 18:01:28,840 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:28,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815540038] [2021-11-25 18:01:28,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815540038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:28,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:28,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:28,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856331004] [2021-11-25 18:01:28,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:28,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:28,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:28,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:28,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:28,842 INFO L87 Difference]: Start difference. First operand 5833 states and 8357 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 18:01:37,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:37,428 INFO L93 Difference]: Finished difference Result 11613 states and 16636 transitions. [2021-11-25 18:01:37,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:37,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 102 [2021-11-25 18:01:37,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:37,458 INFO L225 Difference]: With dead ends: 11613 [2021-11-25 18:01:37,458 INFO L226 Difference]: Without dead ends: 5898 [2021-11-25 18:01:37,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:37,495 INFO L933 BasicCegarLoop]: 2955 mSDtfsCounter, 3359 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:37,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3382 Valid, 4351 Invalid, 2329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 18:01:37,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2021-11-25 18:01:37,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5834. [2021-11-25 18:01:37,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5834 states, 3471 states have (on average 1.3226735811005474) internal successors, (4591), 3743 states have internal predecessors, (4591), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8357 transitions. [2021-11-25 18:01:37,936 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8357 transitions. Word has length 102 [2021-11-25 18:01:37,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:37,936 INFO L470 AbstractCegarLoop]: Abstraction has 5834 states and 8357 transitions. [2021-11-25 18:01:37,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-25 18:01:37,937 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8357 transitions. [2021-11-25 18:01:37,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-25 18:01:37,939 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:37,939 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 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 18:01:37,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 18:01:37,940 INFO L402 AbstractCegarLoop]: === Iteration 16 === 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 24 more)] === [2021-11-25 18:01:37,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:37,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1815418092, now seen corresponding path program 1 times [2021-11-25 18:01:37,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:37,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594304160] [2021-11-25 18:01:37,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:37,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:38,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:38,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594304160] [2021-11-25 18:01:38,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594304160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:38,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:38,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:38,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004643191] [2021-11-25 18:01:38,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:38,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:38,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:38,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:38,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:38,146 INFO L87 Difference]: Start difference. First operand 5834 states and 8357 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:01:42,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:42,698 INFO L93 Difference]: Finished difference Result 5834 states and 8357 transitions. [2021-11-25 18:01:42,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:42,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 91 [2021-11-25 18:01:42,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:42,729 INFO L225 Difference]: With dead ends: 5834 [2021-11-25 18:01:42,729 INFO L226 Difference]: Without dead ends: 5832 [2021-11-25 18:01:42,734 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 18:01:42,735 INFO L933 BasicCegarLoop]: 2954 mSDtfsCounter, 3287 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 5908 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:42,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 5908 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:01:42,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5832 states. [2021-11-25 18:01:43,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5832 to 5832. [2021-11-25 18:01:43,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5832 states, 3470 states have (on average 1.3221902017291067) internal successors, (4588), 3741 states have internal predecessors, (4588), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8354 transitions. [2021-11-25 18:01:43,280 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8354 transitions. Word has length 91 [2021-11-25 18:01:43,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:43,281 INFO L470 AbstractCegarLoop]: Abstraction has 5832 states and 8354 transitions. [2021-11-25 18:01:43,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:01:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8354 transitions. [2021-11-25 18:01:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-25 18:01:43,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:43,284 INFO L514 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 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 18:01:43,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 18:01:43,285 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 24 more)] === [2021-11-25 18:01:43,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:43,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1158938180, now seen corresponding path program 1 times [2021-11-25 18:01:43,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:43,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289594587] [2021-11-25 18:01:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:43,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:43,510 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 18:01:43,510 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:43,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289594587] [2021-11-25 18:01:43,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289594587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:43,511 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:43,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:01:43,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522898730] [2021-11-25 18:01:43,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:43,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:01:43,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:43,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:01:43,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:01:43,514 INFO L87 Difference]: Start difference. First operand 5832 states and 8354 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-25 18:01:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:47,644 INFO L93 Difference]: Finished difference Result 11638 states and 16675 transitions. [2021-11-25 18:01:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:01:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 94 [2021-11-25 18:01:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:47,677 INFO L225 Difference]: With dead ends: 11638 [2021-11-25 18:01:47,677 INFO L226 Difference]: Without dead ends: 5833 [2021-11-25 18:01:47,713 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 18:01:47,714 INFO L933 BasicCegarLoop]: 2955 mSDtfsCounter, 1 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:47,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5903 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 18:01:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2021-11-25 18:01:48,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5833. [2021-11-25 18:01:48,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5833 states, 3471 states have (on average 1.3220973782771535) internal successors, (4589), 3742 states have internal predecessors, (4589), 1874 states have call successors, (1874), 480 states have call predecessors, (1874), 475 states have return successors, (1892), 1770 states have call predecessors, (1892), 1872 states have call successors, (1892) [2021-11-25 18:01:48,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8355 transitions. [2021-11-25 18:01:48,320 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8355 transitions. Word has length 94 [2021-11-25 18:01:48,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:48,321 INFO L470 AbstractCegarLoop]: Abstraction has 5833 states and 8355 transitions. [2021-11-25 18:01:48,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2021-11-25 18:01:48,321 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8355 transitions. [2021-11-25 18:01:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-25 18:01:48,324 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:48,324 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 18:01:48,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 18:01:48,325 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 24 more)] === [2021-11-25 18:01:48,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash 2111383756, now seen corresponding path program 1 times [2021-11-25 18:01:48,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:48,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610871179] [2021-11-25 18:01:48,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:48,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:48,576 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-25 18:01:48,576 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:48,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610871179] [2021-11-25 18:01:48,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610871179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:48,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:48,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:48,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232637974] [2021-11-25 18:01:48,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:48,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:48,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:48,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:48,578 INFO L87 Difference]: Start difference. First operand 5833 states and 8355 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-25 18:01:56,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:56,071 INFO L93 Difference]: Finished difference Result 12303 states and 17815 transitions. [2021-11-25 18:01:56,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:01:56,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 100 [2021-11-25 18:01:56,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:56,092 INFO L225 Difference]: With dead ends: 12303 [2021-11-25 18:01:56,092 INFO L226 Difference]: Without dead ends: 6673 [2021-11-25 18:01:56,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:56,112 INFO L933 BasicCegarLoop]: 3579 mSDtfsCounter, 313 mSDsluCounter, 7231 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 10065 SdHoareTripleChecker+Invalid, 1398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:56,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [548 Valid, 10065 Invalid, 1398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2021-11-25 18:01:56,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6673 states. [2021-11-25 18:01:56,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6673 to 5892. [2021-11-25 18:01:56,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5892 states, 3509 states have (on average 1.3220290681105729) internal successors, (4639), 3783 states have internal predecessors, (4639), 1895 states have call successors, (1895), 480 states have call predecessors, (1895), 475 states have return successors, (1913), 1790 states have call predecessors, (1913), 1893 states have call successors, (1913) [2021-11-25 18:01:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8447 transitions. [2021-11-25 18:01:56,614 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8447 transitions. Word has length 100 [2021-11-25 18:01:56,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:56,614 INFO L470 AbstractCegarLoop]: Abstraction has 5892 states and 8447 transitions. [2021-11-25 18:01:56,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-25 18:01:56,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8447 transitions. [2021-11-25 18:01:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 18:01:56,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:56,618 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:01:56,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 18:01:56,618 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 24 more)] === [2021-11-25 18:01:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:56,619 INFO L85 PathProgramCache]: Analyzing trace with hash 739061854, now seen corresponding path program 1 times [2021-11-25 18:01:56,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:56,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456427977] [2021-11-25 18:01:56,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:56,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:01:56,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:56,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456427977] [2021-11-25 18:01:56,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456427977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:56,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:56,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:01:56,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588725180] [2021-11-25 18:01:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:56,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:01:56,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:01:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:01:56,847 INFO L87 Difference]: Start difference. First operand 5892 states and 8447 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 18:02:03,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:03,090 INFO L93 Difference]: Finished difference Result 9803 states and 13915 transitions. [2021-11-25 18:02:03,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:02:03,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 96 [2021-11-25 18:02:03,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:03,122 INFO L225 Difference]: With dead ends: 9803 [2021-11-25 18:02:03,122 INFO L226 Difference]: Without dead ends: 9801 [2021-11-25 18:02:03,126 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 18:02:03,126 INFO L933 BasicCegarLoop]: 3442 mSDtfsCounter, 3092 mSDsluCounter, 6025 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 8854 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:03,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3094 Valid, 8854 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-11-25 18:02:03,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2021-11-25 18:02:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 9624. [2021-11-25 18:02:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9624 states, 5733 states have (on average 1.3240886098028954) internal successors, (7591), 6188 states have internal predecessors, (7591), 3050 states have call successors, (3050), 837 states have call predecessors, (3050), 828 states have return successors, (3082), 2874 states have call predecessors, (3082), 3048 states have call successors, (3082) [2021-11-25 18:02:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13723 transitions. [2021-11-25 18:02:04,003 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13723 transitions. Word has length 96 [2021-11-25 18:02:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:04,003 INFO L470 AbstractCegarLoop]: Abstraction has 9624 states and 13723 transitions. [2021-11-25 18:02:04,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 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 18:02:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13723 transitions. [2021-11-25 18:02:04,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 18:02:04,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:04,007 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:04,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 18:02:04,008 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 24 more)] === [2021-11-25 18:02:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:04,008 INFO L85 PathProgramCache]: Analyzing trace with hash -660205682, now seen corresponding path program 1 times [2021-11-25 18:02:04,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:04,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124934454] [2021-11-25 18:02:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:04,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:04,245 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:04,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124934454] [2021-11-25 18:02:04,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124934454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:04,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:04,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:04,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182417695] [2021-11-25 18:02:04,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:04,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:04,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:04,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:04,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:04,248 INFO L87 Difference]: Start difference. First operand 9624 states and 13723 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (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 18:02:08,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:08,951 INFO L93 Difference]: Finished difference Result 9624 states and 13723 transitions. [2021-11-25 18:02:08,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:02:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (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 101 [2021-11-25 18:02:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:08,996 INFO L225 Difference]: With dead ends: 9624 [2021-11-25 18:02:08,996 INFO L226 Difference]: Without dead ends: 9622 [2021-11-25 18:02:09,006 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 18:02:09,007 INFO L933 BasicCegarLoop]: 2952 mSDtfsCounter, 3283 mSDsluCounter, 3309 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:09,008 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3285 Valid, 5904 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 18:02:09,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9622 states. [2021-11-25 18:02:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9622 to 9622. [2021-11-25 18:02:09,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9622 states, 5732 states have (on average 1.3237962316817864) internal successors, (7588), 6186 states have internal predecessors, (7588), 3050 states have call successors, (3050), 837 states have call predecessors, (3050), 828 states have return successors, (3082), 2874 states have call predecessors, (3082), 3048 states have call successors, (3082) [2021-11-25 18:02:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 13720 transitions. [2021-11-25 18:02:09,910 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 13720 transitions. Word has length 101 [2021-11-25 18:02:09,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:09,911 INFO L470 AbstractCegarLoop]: Abstraction has 9622 states and 13720 transitions. [2021-11-25 18:02:09,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (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 18:02:09,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 13720 transitions. [2021-11-25 18:02:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 18:02:09,914 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:09,915 INFO L514 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:09,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 18:02:09,915 INFO L402 AbstractCegarLoop]: === Iteration 21 === 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 24 more)] === [2021-11-25 18:02:09,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:09,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1484964727, now seen corresponding path program 1 times [2021-11-25 18:02:09,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:09,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096639704] [2021-11-25 18:02:09,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:09,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:10,191 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 18:02:10,191 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:10,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096639704] [2021-11-25 18:02:10,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096639704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:10,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:10,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:02:10,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800064963] [2021-11-25 18:02:10,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:10,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:02:10,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:10,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:02:10,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:02:10,193 INFO L87 Difference]: Start difference. First operand 9622 states and 13720 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-25 18:02:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:19,937 INFO L93 Difference]: Finished difference Result 19219 states and 27414 transitions. [2021-11-25 18:02:19,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:02:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 103 [2021-11-25 18:02:19,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:19,991 INFO L225 Difference]: With dead ends: 19219 [2021-11-25 18:02:19,991 INFO L226 Difference]: Without dead ends: 9644 [2021-11-25 18:02:20,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:02:20,030 INFO L933 BasicCegarLoop]: 2965 mSDtfsCounter, 9 mSDsluCounter, 9961 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11846 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:20,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 11846 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1456 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2021-11-25 18:02:20,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9644 states. [2021-11-25 18:02:20,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9644 to 9626. [2021-11-25 18:02:20,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 5735 states have (on average 1.3236268526591106) internal successors, (7591), 6189 states have internal predecessors, (7591), 3050 states have call successors, (3050), 837 states have call predecessors, (3050), 829 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:20,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13727 transitions. [2021-11-25 18:02:20,872 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13727 transitions. Word has length 103 [2021-11-25 18:02:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:20,872 INFO L470 AbstractCegarLoop]: Abstraction has 9626 states and 13727 transitions. [2021-11-25 18:02:20,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2021-11-25 18:02:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13727 transitions. [2021-11-25 18:02:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-25 18:02:20,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:20,876 INFO L514 BasicCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:20,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 18:02:20,876 INFO L402 AbstractCegarLoop]: === Iteration 22 === 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 24 more)] === [2021-11-25 18:02:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1084149928, now seen corresponding path program 1 times [2021-11-25 18:02:20,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:20,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415264338] [2021-11-25 18:02:20,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:20,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:20,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:21,127 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-11-25 18:02:21,128 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:21,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415264338] [2021-11-25 18:02:21,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415264338] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:21,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:21,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:02:21,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133721737] [2021-11-25 18:02:21,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:21,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:02:21,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:21,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:02:21,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:02:21,129 INFO L87 Difference]: Start difference. First operand 9626 states and 13727 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:02:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:31,319 INFO L93 Difference]: Finished difference Result 9768 states and 13863 transitions. [2021-11-25 18:02:31,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:02:31,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 104 [2021-11-25 18:02:31,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:31,355 INFO L225 Difference]: With dead ends: 9768 [2021-11-25 18:02:31,355 INFO L226 Difference]: Without dead ends: 9766 [2021-11-25 18:02:31,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:02:31,361 INFO L933 BasicCegarLoop]: 5487 mSDtfsCounter, 2936 mSDsluCounter, 15502 mSDsCounter, 0 mSdLazyCounter, 2311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 19348 SdHoareTripleChecker+Invalid, 2312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:31,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2941 Valid, 19348 Invalid, 2312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2311 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2021-11-25 18:02:31,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2021-11-25 18:02:32,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9634. [2021-11-25 18:02:32,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9634 states, 5741 states have (on average 1.3232886256749694) internal successors, (7597), 6195 states have internal predecessors, (7597), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:32,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9634 states to 9634 states and 13733 transitions. [2021-11-25 18:02:32,106 INFO L78 Accepts]: Start accepts. Automaton has 9634 states and 13733 transitions. Word has length 104 [2021-11-25 18:02:32,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:32,106 INFO L470 AbstractCegarLoop]: Abstraction has 9634 states and 13733 transitions. [2021-11-25 18:02:32,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 18:02:32,107 INFO L276 IsEmpty]: Start isEmpty. Operand 9634 states and 13733 transitions. [2021-11-25 18:02:32,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-25 18:02:32,110 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:32,110 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:32,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-25 18:02:32,111 INFO L402 AbstractCegarLoop]: === Iteration 23 === 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 24 more)] === [2021-11-25 18:02:32,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash 8560665, now seen corresponding path program 1 times [2021-11-25 18:02:32,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:32,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281888722] [2021-11-25 18:02:32,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:32,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:32,343 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:32,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281888722] [2021-11-25 18:02:32,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281888722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:32,343 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:32,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:32,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035585456] [2021-11-25 18:02:32,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:32,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:32,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:32,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:32,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:32,345 INFO L87 Difference]: Start difference. First operand 9634 states and 13733 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 18:02:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:36,882 INFO L93 Difference]: Finished difference Result 9634 states and 13733 transitions. [2021-11-25 18:02:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:02:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 106 [2021-11-25 18:02:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:36,913 INFO L225 Difference]: With dead ends: 9634 [2021-11-25 18:02:36,913 INFO L226 Difference]: Without dead ends: 9632 [2021-11-25 18:02:36,918 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 18:02:36,923 INFO L933 BasicCegarLoop]: 2950 mSDtfsCounter, 3280 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:36,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3282 Valid, 5900 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 18:02:36,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9632 states. [2021-11-25 18:02:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9632 to 9632. [2021-11-25 18:02:37,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9632 states, 5740 states have (on average 1.3229965156794425) internal successors, (7594), 6193 states have internal predecessors, (7594), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:37,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9632 states to 9632 states and 13730 transitions. [2021-11-25 18:02:37,965 INFO L78 Accepts]: Start accepts. Automaton has 9632 states and 13730 transitions. Word has length 106 [2021-11-25 18:02:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:37,966 INFO L470 AbstractCegarLoop]: Abstraction has 9632 states and 13730 transitions. [2021-11-25 18:02:37,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 18:02:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 9632 states and 13730 transitions. [2021-11-25 18:02:37,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-25 18:02:37,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:37,970 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:37,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-25 18:02:37,971 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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 24 more)] === [2021-11-25 18:02:37,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1389858374, now seen corresponding path program 1 times [2021-11-25 18:02:37,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:37,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021540168] [2021-11-25 18:02:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:37,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:38,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:38,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:38,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021540168] [2021-11-25 18:02:38,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021540168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:38,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:38,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:38,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256399014] [2021-11-25 18:02:38,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:38,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:38,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:38,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:38,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:38,219 INFO L87 Difference]: Start difference. First operand 9632 states and 13730 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 18:02:43,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:43,195 INFO L93 Difference]: Finished difference Result 9632 states and 13730 transitions. [2021-11-25 18:02:43,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:02:43,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 111 [2021-11-25 18:02:43,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:43,222 INFO L225 Difference]: With dead ends: 9632 [2021-11-25 18:02:43,222 INFO L226 Difference]: Without dead ends: 9630 [2021-11-25 18:02:43,227 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 18:02:43,228 INFO L933 BasicCegarLoop]: 2948 mSDtfsCounter, 3277 mSDsluCounter, 3305 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:43,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3279 Valid, 5896 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 18:02:43,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9630 states. [2021-11-25 18:02:43,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9630 to 9630. [2021-11-25 18:02:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9630 states, 5739 states have (on average 1.3227043038856943) internal successors, (7591), 6191 states have internal predecessors, (7591), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9630 states to 9630 states and 13727 transitions. [2021-11-25 18:02:43,962 INFO L78 Accepts]: Start accepts. Automaton has 9630 states and 13727 transitions. Word has length 111 [2021-11-25 18:02:43,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:43,962 INFO L470 AbstractCegarLoop]: Abstraction has 9630 states and 13727 transitions. [2021-11-25 18:02:43,963 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 18:02:43,963 INFO L276 IsEmpty]: Start isEmpty. Operand 9630 states and 13727 transitions. [2021-11-25 18:02:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-25 18:02:43,966 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:43,966 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:43,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-25 18:02:43,966 INFO L402 AbstractCegarLoop]: === Iteration 25 === 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 24 more)] === [2021-11-25 18:02:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:43,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1940886038, now seen corresponding path program 1 times [2021-11-25 18:02:43,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:43,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894748964] [2021-11-25 18:02:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:43,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:44,170 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:44,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894748964] [2021-11-25 18:02:44,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894748964] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:44,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:44,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:44,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11137097] [2021-11-25 18:02:44,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:44,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:44,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:44,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:44,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:44,172 INFO L87 Difference]: Start difference. First operand 9630 states and 13727 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 18:02:46,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:02:49,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:49,260 INFO L93 Difference]: Finished difference Result 9630 states and 13727 transitions. [2021-11-25 18:02:49,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:02:49,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 116 [2021-11-25 18:02:49,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:49,297 INFO L225 Difference]: With dead ends: 9630 [2021-11-25 18:02:49,297 INFO L226 Difference]: Without dead ends: 9628 [2021-11-25 18:02:49,304 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 18:02:49,305 INFO L933 BasicCegarLoop]: 2946 mSDtfsCounter, 3274 mSDsluCounter, 3303 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3276 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:49,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3276 Valid, 5892 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 18:02:49,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9628 states. [2021-11-25 18:02:49,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9628 to 9628. [2021-11-25 18:02:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9628 states, 5738 states have (on average 1.3224119902405018) internal successors, (7588), 6189 states have internal predecessors, (7588), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 13724 transitions. [2021-11-25 18:02:50,035 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 13724 transitions. Word has length 116 [2021-11-25 18:02:50,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:50,035 INFO L470 AbstractCegarLoop]: Abstraction has 9628 states and 13724 transitions. [2021-11-25 18:02:50,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 18:02:50,035 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 13724 transitions. [2021-11-25 18:02:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-25 18:02:50,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:50,038 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:50,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-25 18:02:50,038 INFO L402 AbstractCegarLoop]: === Iteration 26 === 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 24 more)] === [2021-11-25 18:02:50,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash 925147957, now seen corresponding path program 1 times [2021-11-25 18:02:50,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:50,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922238705] [2021-11-25 18:02:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:50,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:50,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:50,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:50,248 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:50,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922238705] [2021-11-25 18:02:50,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922238705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:50,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:50,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:50,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683883824] [2021-11-25 18:02:50,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:50,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:50,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:50,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:50,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:50,250 INFO L87 Difference]: Start difference. First operand 9628 states and 13724 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 18:02:54,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:02:54,223 INFO L93 Difference]: Finished difference Result 9628 states and 13724 transitions. [2021-11-25 18:02:54,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:02:54,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 121 [2021-11-25 18:02:54,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:02:54,254 INFO L225 Difference]: With dead ends: 9628 [2021-11-25 18:02:54,254 INFO L226 Difference]: Without dead ends: 9626 [2021-11-25 18:02:54,260 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 18:02:54,261 INFO L933 BasicCegarLoop]: 2944 mSDtfsCounter, 3271 mSDsluCounter, 3301 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 5888 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:02:54,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3273 Valid, 5888 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-25 18:02:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2021-11-25 18:02:55,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 9626. [2021-11-25 18:02:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9626 states, 5737 states have (on average 1.322119574690605) internal successors, (7585), 6187 states have internal predecessors, (7585), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:02:55,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13721 transitions. [2021-11-25 18:02:55,064 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13721 transitions. Word has length 121 [2021-11-25 18:02:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:02:55,065 INFO L470 AbstractCegarLoop]: Abstraction has 9626 states and 13721 transitions. [2021-11-25 18:02:55,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 18:02:55,066 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13721 transitions. [2021-11-25 18:02:55,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-25 18:02:55,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:02:55,071 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:02:55,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-25 18:02:55,071 INFO L402 AbstractCegarLoop]: === Iteration 27 === 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 24 more)] === [2021-11-25 18:02:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:02:55,072 INFO L85 PathProgramCache]: Analyzing trace with hash -817593731, now seen corresponding path program 1 times [2021-11-25 18:02:55,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:02:55,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663556988] [2021-11-25 18:02:55,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:02:55,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:02:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:02:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:02:55,307 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:02:55,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663556988] [2021-11-25 18:02:55,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663556988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:02:55,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:02:55,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:02:55,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668877442] [2021-11-25 18:02:55,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:02:55,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:02:55,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:02:55,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:02:55,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:02:55,309 INFO L87 Difference]: Start difference. First operand 9626 states and 13721 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 18:03:00,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:00,488 INFO L93 Difference]: Finished difference Result 9626 states and 13721 transitions. [2021-11-25 18:03:00,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:03:00,489 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 126 [2021-11-25 18:03:00,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:00,522 INFO L225 Difference]: With dead ends: 9626 [2021-11-25 18:03:00,522 INFO L226 Difference]: Without dead ends: 9624 [2021-11-25 18:03:00,528 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 18:03:00,529 INFO L933 BasicCegarLoop]: 2942 mSDtfsCounter, 3268 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:00,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3270 Valid, 5884 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-25 18:03:00,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2021-11-25 18:03:01,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9624. [2021-11-25 18:03:01,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9624 states, 5736 states have (on average 1.3218270571827058) internal successors, (7582), 6185 states have internal predecessors, (7582), 3050 states have call successors, (3050), 839 states have call predecessors, (3050), 831 states have return successors, (3086), 2875 states have call predecessors, (3086), 3048 states have call successors, (3086) [2021-11-25 18:03:01,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13718 transitions. [2021-11-25 18:03:01,396 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13718 transitions. Word has length 126 [2021-11-25 18:03:01,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:01,396 INFO L470 AbstractCegarLoop]: Abstraction has 9624 states and 13718 transitions. [2021-11-25 18:03:01,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 18:03:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13718 transitions. [2021-11-25 18:03:01,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-11-25 18:03:01,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:01,402 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 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] [2021-11-25 18:03:01,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-25 18:03:01,402 INFO L402 AbstractCegarLoop]: === Iteration 28 === 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 24 more)] === [2021-11-25 18:03:01,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:01,402 INFO L85 PathProgramCache]: Analyzing trace with hash -281945397, now seen corresponding path program 1 times [2021-11-25 18:03:01,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:01,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3860949] [2021-11-25 18:03:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:01,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2021-11-25 18:03:01,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:01,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3860949] [2021-11-25 18:03:01,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3860949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:01,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:03:01,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:03:01,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714951635] [2021-11-25 18:03:01,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:01,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:03:01,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:01,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:03:01,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:03:01,785 INFO L87 Difference]: Start difference. First operand 9624 states and 13718 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:03:09,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:09,536 INFO L93 Difference]: Finished difference Result 12778 states and 17999 transitions. [2021-11-25 18:03:09,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:03:09,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2021-11-25 18:03:09,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:09,570 INFO L225 Difference]: With dead ends: 12778 [2021-11-25 18:03:09,570 INFO L226 Difference]: Without dead ends: 12776 [2021-11-25 18:03:09,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:03:09,573 INFO L933 BasicCegarLoop]: 3459 mSDtfsCounter, 3161 mSDsluCounter, 9635 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 12135 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:09,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3166 Valid, 12135 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 18:03:09,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12776 states. [2021-11-25 18:03:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12776 to 12553. [2021-11-25 18:03:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12553 states, 7366 states have (on average 1.3038284007602499) internal successors, (9604), 7964 states have internal predecessors, (9604), 4036 states have call successors, (4036), 1170 states have call predecessors, (4036), 1144 states have return successors, (4130), 3782 states have call predecessors, (4130), 4034 states have call successors, (4130) [2021-11-25 18:03:10,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12553 states to 12553 states and 17770 transitions. [2021-11-25 18:03:10,423 INFO L78 Accepts]: Start accepts. Automaton has 12553 states and 17770 transitions. Word has length 141 [2021-11-25 18:03:10,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:10,424 INFO L470 AbstractCegarLoop]: Abstraction has 12553 states and 17770 transitions. [2021-11-25 18:03:10,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-25 18:03:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 12553 states and 17770 transitions. [2021-11-25 18:03:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-25 18:03:10,427 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:10,428 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:10,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-25 18:03:10,428 INFO L402 AbstractCegarLoop]: === Iteration 29 === 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 24 more)] === [2021-11-25 18:03:10,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:10,429 INFO L85 PathProgramCache]: Analyzing trace with hash -998870535, now seen corresponding path program 1 times [2021-11-25 18:03:10,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:10,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416310452] [2021-11-25 18:03:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:10,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:10,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:03:10,632 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:10,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416310452] [2021-11-25 18:03:10,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416310452] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:10,633 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:03:10,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:03:10,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046301385] [2021-11-25 18:03:10,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:10,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:03:10,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:10,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:03:10,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:03:10,634 INFO L87 Difference]: Start difference. First operand 12553 states and 17770 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:03:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:14,643 INFO L93 Difference]: Finished difference Result 12553 states and 17770 transitions. [2021-11-25 18:03:14,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:03:14,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 131 [2021-11-25 18:03:14,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:14,675 INFO L225 Difference]: With dead ends: 12553 [2021-11-25 18:03:14,675 INFO L226 Difference]: Without dead ends: 12551 [2021-11-25 18:03:14,681 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 18:03:14,681 INFO L933 BasicCegarLoop]: 2940 mSDtfsCounter, 3265 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:14,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3267 Valid, 5880 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-25 18:03:14,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2021-11-25 18:03:15,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12551. [2021-11-25 18:03:15,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12551 states, 7365 states have (on average 1.3035980991174474) internal successors, (9601), 7962 states have internal predecessors, (9601), 4036 states have call successors, (4036), 1170 states have call predecessors, (4036), 1144 states have return successors, (4130), 3782 states have call predecessors, (4130), 4034 states have call successors, (4130) [2021-11-25 18:03:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12551 states to 12551 states and 17767 transitions. [2021-11-25 18:03:15,903 INFO L78 Accepts]: Start accepts. Automaton has 12551 states and 17767 transitions. Word has length 131 [2021-11-25 18:03:15,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:15,904 INFO L470 AbstractCegarLoop]: Abstraction has 12551 states and 17767 transitions. [2021-11-25 18:03:15,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 18:03:15,904 INFO L276 IsEmpty]: Start isEmpty. Operand 12551 states and 17767 transitions. [2021-11-25 18:03:15,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-25 18:03:15,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:15,909 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:15,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-25 18:03:15,910 INFO L402 AbstractCegarLoop]: === Iteration 30 === 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 24 more)] === [2021-11-25 18:03:15,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash -731600612, now seen corresponding path program 1 times [2021-11-25 18:03:15,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:15,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346260102] [2021-11-25 18:03:15,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:15,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:16,141 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 18:03:16,141 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:16,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346260102] [2021-11-25 18:03:16,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346260102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:16,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:03:16,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 18:03:16,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136812547] [2021-11-25 18:03:16,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:16,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 18:03:16,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 18:03:16,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 18:03:16,144 INFO L87 Difference]: Start difference. First operand 12551 states and 17767 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 18:03:21,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:21,332 INFO L93 Difference]: Finished difference Result 12551 states and 17767 transitions. [2021-11-25 18:03:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 18:03:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 136 [2021-11-25 18:03:21,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:21,388 INFO L225 Difference]: With dead ends: 12551 [2021-11-25 18:03:21,389 INFO L226 Difference]: Without dead ends: 12058 [2021-11-25 18:03:21,408 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 18:03:21,409 INFO L933 BasicCegarLoop]: 2939 mSDtfsCounter, 3262 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 5878 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:21,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3262 Valid, 5878 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-25 18:03:21,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12058 states. [2021-11-25 18:03:23,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12058 to 12058. [2021-11-25 18:03:23,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12058 states, 7085 states have (on average 1.3076923076923077) internal successors, (9265), 7664 states have internal predecessors, (9265), 3885 states have call successors, (3885), 1110 states have call predecessors, (3885), 1083 states have return successors, (3959), 3632 states have call predecessors, (3959), 3863 states have call successors, (3959) [2021-11-25 18:03:23,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12058 states to 12058 states and 17109 transitions. [2021-11-25 18:03:23,368 INFO L78 Accepts]: Start accepts. Automaton has 12058 states and 17109 transitions. Word has length 136 [2021-11-25 18:03:23,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:23,369 INFO L470 AbstractCegarLoop]: Abstraction has 12058 states and 17109 transitions. [2021-11-25 18:03:23,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 18:03:23,369 INFO L276 IsEmpty]: Start isEmpty. Operand 12058 states and 17109 transitions. [2021-11-25 18:03:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-25 18:03:23,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:23,374 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 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] [2021-11-25 18:03:23,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-25 18:03:23,374 INFO L402 AbstractCegarLoop]: === Iteration 31 === 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 24 more)] === [2021-11-25 18:03:23,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:23,375 INFO L85 PathProgramCache]: Analyzing trace with hash 419179907, now seen corresponding path program 1 times [2021-11-25 18:03:23,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:23,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300227052] [2021-11-25 18:03:23,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:23,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:23,755 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-25 18:03:23,755 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:23,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300227052] [2021-11-25 18:03:23,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300227052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:23,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:03:23,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:03:23,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943711593] [2021-11-25 18:03:23,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:23,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:03:23,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:23,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:03:23,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:03:23,757 INFO L87 Difference]: Start difference. First operand 12058 states and 17109 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:03:33,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:33,792 INFO L93 Difference]: Finished difference Result 19403 states and 27344 transitions. [2021-11-25 18:03:33,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:03:33,792 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 160 [2021-11-25 18:03:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:33,892 INFO L225 Difference]: With dead ends: 19403 [2021-11-25 18:03:33,893 INFO L226 Difference]: Without dead ends: 19401 [2021-11-25 18:03:33,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:03:33,910 INFO L933 BasicCegarLoop]: 3570 mSDtfsCounter, 2818 mSDsluCounter, 10748 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 13280 SdHoareTripleChecker+Invalid, 1425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:33,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2823 Valid, 13280 Invalid, 1425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-25 18:03:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19401 states. [2021-11-25 18:03:35,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19401 to 19317. [2021-11-25 18:03:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19317 states, 11232 states have (on average 1.2939814814814814) internal successors, (14534), 12185 states have internal predecessors, (14534), 6262 states have call successors, (6262), 1875 states have call predecessors, (6262), 1818 states have return successors, (6461), 5812 states have call predecessors, (6461), 6219 states have call successors, (6461) [2021-11-25 18:03:36,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19317 states to 19317 states and 27257 transitions. [2021-11-25 18:03:36,052 INFO L78 Accepts]: Start accepts. Automaton has 19317 states and 27257 transitions. Word has length 160 [2021-11-25 18:03:36,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:36,052 INFO L470 AbstractCegarLoop]: Abstraction has 19317 states and 27257 transitions. [2021-11-25 18:03:36,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:03:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19317 states and 27257 transitions. [2021-11-25 18:03:36,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-25 18:03:36,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:36,057 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:36,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-25 18:03:36,058 INFO L402 AbstractCegarLoop]: === Iteration 32 === 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 24 more)] === [2021-11-25 18:03:36,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1280540542, now seen corresponding path program 1 times [2021-11-25 18:03:36,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:36,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344295429] [2021-11-25 18:03:36,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:36,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-25 18:03:37,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344295429] [2021-11-25 18:03:37,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344295429] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:03:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777936691] [2021-11-25 18:03:37,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:37,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:03:37,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:03:37,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:03:37,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 18:03:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:38,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:03:38,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:03:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-11-25 18:03:39,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:03:39,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777936691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:39,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:03:39,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2021-11-25 18:03:39,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477565499] [2021-11-25 18:03:39,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:03:39,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:03:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:03:39,333 INFO L87 Difference]: Start difference. First operand 19317 states and 27257 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:03:48,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:03:48,922 INFO L93 Difference]: Finished difference Result 37917 states and 53647 transitions. [2021-11-25 18:03:48,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:03:48,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 182 [2021-11-25 18:03:48,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:03:49,014 INFO L225 Difference]: With dead ends: 37917 [2021-11-25 18:03:49,014 INFO L226 Difference]: Without dead ends: 19125 [2021-11-25 18:03:49,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:03:49,083 INFO L933 BasicCegarLoop]: 2821 mSDtfsCounter, 11 mSDsluCounter, 9401 mSDsCounter, 0 mSdLazyCounter, 1674 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11174 SdHoareTripleChecker+Invalid, 1676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2021-11-25 18:03:49,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 11174 Invalid, 1676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2021-11-25 18:03:49,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19125 states. [2021-11-25 18:03:51,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19125 to 19121. [2021-11-25 18:03:51,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19121 states, 11134 states have (on average 1.2947727680977188) internal successors, (14416), 12083 states have internal predecessors, (14416), 6166 states have call successors, (6166), 1861 states have call predecessors, (6166), 1816 states have return successors, (6397), 5736 states have call predecessors, (6397), 6123 states have call successors, (6397) [2021-11-25 18:03:51,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19121 states to 19121 states and 26979 transitions. [2021-11-25 18:03:51,280 INFO L78 Accepts]: Start accepts. Automaton has 19121 states and 26979 transitions. Word has length 182 [2021-11-25 18:03:51,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:03:51,280 INFO L470 AbstractCegarLoop]: Abstraction has 19121 states and 26979 transitions. [2021-11-25 18:03:51,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:03:51,280 INFO L276 IsEmpty]: Start isEmpty. Operand 19121 states and 26979 transitions. [2021-11-25 18:03:51,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-25 18:03:51,283 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:03:51,283 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:03:51,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 18:03:51,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:03:51,484 INFO L402 AbstractCegarLoop]: === Iteration 33 === 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 24 more)] === [2021-11-25 18:03:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:03:51,485 INFO L85 PathProgramCache]: Analyzing trace with hash 162313680, now seen corresponding path program 1 times [2021-11-25 18:03:51,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:03:51,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715003285] [2021-11-25 18:03:51,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:51,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:03:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-25 18:03:52,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:03:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715003285] [2021-11-25 18:03:52,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715003285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:03:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619274479] [2021-11-25 18:03:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:03:52,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:03:52,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:03:52,404 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:03:52,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 18:03:54,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:03:54,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:03:54,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:03:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-11-25 18:03:54,609 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:03:54,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619274479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:03:54,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:03:54,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2021-11-25 18:03:54,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066075652] [2021-11-25 18:03:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:03:54,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:03:54,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:03:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:03:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:03:54,611 INFO L87 Difference]: Start difference. First operand 19121 states and 26979 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:04:04,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:04,645 INFO L93 Difference]: Finished difference Result 37583 states and 53162 transitions. [2021-11-25 18:04:04,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:04:04,646 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 183 [2021-11-25 18:04:04,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:04:04,745 INFO L225 Difference]: With dead ends: 37583 [2021-11-25 18:04:04,746 INFO L226 Difference]: Without dead ends: 18989 [2021-11-25 18:04:04,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:04:04,827 INFO L933 BasicCegarLoop]: 2823 mSDtfsCounter, 16 mSDsluCounter, 9401 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11181 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:04:04,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 11181 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-11-25 18:04:04,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2021-11-25 18:04:07,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 18985. [2021-11-25 18:04:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18985 states, 11060 states have (on average 1.2942133815551538) internal successors, (14314), 12005 states have internal predecessors, (14314), 6098 states have call successors, (6098), 1855 states have call predecessors, (6098), 1822 states have return successors, (6361), 5688 states have call predecessors, (6361), 6055 states have call successors, (6361) [2021-11-25 18:04:07,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18985 states to 18985 states and 26773 transitions. [2021-11-25 18:04:07,290 INFO L78 Accepts]: Start accepts. Automaton has 18985 states and 26773 transitions. Word has length 183 [2021-11-25 18:04:07,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:04:07,291 INFO L470 AbstractCegarLoop]: Abstraction has 18985 states and 26773 transitions. [2021-11-25 18:04:07,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:04:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18985 states and 26773 transitions. [2021-11-25 18:04:07,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-25 18:04:07,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:04:07,296 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:07,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 18:04:07,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-11-25 18:04:07,512 INFO L402 AbstractCegarLoop]: === Iteration 34 === 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 24 more)] === [2021-11-25 18:04:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:04:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash 237722234, now seen corresponding path program 1 times [2021-11-25 18:04:07,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:04:07,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132210442] [2021-11-25 18:04:07,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:07,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:04:08,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:08,512 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-25 18:04:08,512 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:04:08,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132210442] [2021-11-25 18:04:08,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132210442] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:04:08,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093830155] [2021-11-25 18:04:08,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:08,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:04:08,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:04:08,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:04:08,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 18:04:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:09,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 3863 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:04:09,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:04:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-11-25 18:04:10,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:04:10,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093830155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:04:10,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:04:10,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2021-11-25 18:04:10,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533996028] [2021-11-25 18:04:10,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:04:10,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:04:10,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:04:10,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:04:10,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:04:10,412 INFO L87 Difference]: Start difference. First operand 18985 states and 26773 transitions. Second operand has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:04:15,013 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:04:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:22,443 INFO L93 Difference]: Finished difference Result 37354 states and 52813 transitions. [2021-11-25 18:04:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:04:22,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 184 [2021-11-25 18:04:22,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:04:22,550 INFO L225 Difference]: With dead ends: 37354 [2021-11-25 18:04:22,551 INFO L226 Difference]: Without dead ends: 18896 [2021-11-25 18:04:22,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:04:22,630 INFO L933 BasicCegarLoop]: 2823 mSDtfsCounter, 16 mSDsluCounter, 9401 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11181 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:04:22,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 11181 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2021-11-25 18:04:22,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18896 states. [2021-11-25 18:04:24,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18896 to 18892. [2021-11-25 18:04:24,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18892 states, 11013 states have (on average 1.2936529555979297) internal successors, (14247), 11954 states have internal predecessors, (14247), 6044 states have call successors, (6044), 1852 states have call predecessors, (6044), 1830 states have return successors, (6339), 5653 states have call predecessors, (6339), 6001 states have call successors, (6339) [2021-11-25 18:04:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18892 states to 18892 states and 26630 transitions. [2021-11-25 18:04:24,881 INFO L78 Accepts]: Start accepts. Automaton has 18892 states and 26630 transitions. Word has length 184 [2021-11-25 18:04:24,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:04:24,881 INFO L470 AbstractCegarLoop]: Abstraction has 18892 states and 26630 transitions. [2021-11-25 18:04:24,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.0) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:04:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 18892 states and 26630 transitions. [2021-11-25 18:04:24,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-25 18:04:24,886 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:04:24,887 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:24,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:04:25,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:04:25,111 INFO L402 AbstractCegarLoop]: === Iteration 35 === 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 24 more)] === [2021-11-25 18:04:25,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:04:25,112 INFO L85 PathProgramCache]: Analyzing trace with hash 669016925, now seen corresponding path program 1 times [2021-11-25 18:04:25,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:04:25,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597898174] [2021-11-25 18:04:25,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:25,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:04:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2021-11-25 18:04:25,660 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:04:25,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597898174] [2021-11-25 18:04:25,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597898174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:04:25,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:04:25,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:04:25,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767636608] [2021-11-25 18:04:25,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:04:25,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:04:25,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:04:25,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:04:25,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:04:25,662 INFO L87 Difference]: Start difference. First operand 18892 states and 26630 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:04:39,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:39,056 INFO L93 Difference]: Finished difference Result 32712 states and 46049 transitions. [2021-11-25 18:04:39,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:04:39,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 185 [2021-11-25 18:04:39,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:04:39,204 INFO L225 Difference]: With dead ends: 32712 [2021-11-25 18:04:39,204 INFO L226 Difference]: Without dead ends: 32710 [2021-11-25 18:04:39,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:04:39,224 INFO L933 BasicCegarLoop]: 4102 mSDtfsCounter, 2847 mSDsluCounter, 11929 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 14834 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2021-11-25 18:04:39,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2852 Valid, 14834 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2021-11-25 18:04:39,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32710 states. [2021-11-25 18:04:42,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32710 to 32620. [2021-11-25 18:04:42,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32620 states, 18868 states have (on average 1.2845028619885521) internal successors, (24236), 20539 states have internal predecessors, (24236), 10508 states have call successors, (10508), 3297 states have call predecessors, (10508), 3239 states have return successors, (11209), 9765 states have call predecessors, (11209), 10423 states have call successors, (11209) [2021-11-25 18:04:42,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32620 states to 32620 states and 45953 transitions. [2021-11-25 18:04:42,812 INFO L78 Accepts]: Start accepts. Automaton has 32620 states and 45953 transitions. Word has length 185 [2021-11-25 18:04:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:04:42,812 INFO L470 AbstractCegarLoop]: Abstraction has 32620 states and 45953 transitions. [2021-11-25 18:04:42,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-25 18:04:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 32620 states and 45953 transitions. [2021-11-25 18:04:42,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-25 18:04:42,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:04:42,818 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:04:42,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-25 18:04:42,818 INFO L402 AbstractCegarLoop]: === Iteration 36 === 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 24 more)] === [2021-11-25 18:04:42,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:04:42,819 INFO L85 PathProgramCache]: Analyzing trace with hash -480148672, now seen corresponding path program 1 times [2021-11-25 18:04:42,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:04:42,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137661775] [2021-11-25 18:04:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:42,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:04:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:43,680 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2021-11-25 18:04:43,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:04:43,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137661775] [2021-11-25 18:04:43,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137661775] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 18:04:43,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058285178] [2021-11-25 18:04:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:04:43,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 18:04:43,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:04:43,683 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 18:04:43,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 18:04:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:04:45,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-25 18:04:45,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:04:45,966 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2021-11-25 18:04:45,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:04:45,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058285178] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:04:45,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 18:04:45,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2021-11-25 18:04:45,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950919724] [2021-11-25 18:04:45,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:04:45,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:04:45,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:04:45,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:04:45,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-11-25 18:04:45,969 INFO L87 Difference]: Start difference. First operand 32620 states and 45953 transitions. Second operand has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:04:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:04:59,894 INFO L93 Difference]: Finished difference Result 64399 states and 90938 transitions. [2021-11-25 18:04:59,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 18:04:59,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 185 [2021-11-25 18:04:59,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:00,041 INFO L225 Difference]: With dead ends: 64399 [2021-11-25 18:05:00,042 INFO L226 Difference]: Without dead ends: 32300 [2021-11-25 18:05:00,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-25 18:05:00,187 INFO L933 BasicCegarLoop]: 2824 mSDtfsCounter, 16 mSDsluCounter, 9406 mSDsCounter, 0 mSdLazyCounter, 1671 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11185 SdHoareTripleChecker+Invalid, 1673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:00,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 11185 Invalid, 1673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1671 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2021-11-25 18:05:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32300 states. [2021-11-25 18:05:03,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32300 to 32292. [2021-11-25 18:05:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32292 states, 18693 states have (on average 1.284277537045953) internal successors, (24007), 20340 states have internal predecessors, (24007), 10362 states have call successors, (10362), 3282 states have call predecessors, (10362), 3232 states have return successors, (11063), 9659 states have call predecessors, (11063), 10277 states have call successors, (11063) [2021-11-25 18:05:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32292 states to 32292 states and 45432 transitions. [2021-11-25 18:05:04,079 INFO L78 Accepts]: Start accepts. Automaton has 32292 states and 45432 transitions. Word has length 185 [2021-11-25 18:05:04,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:04,079 INFO L470 AbstractCegarLoop]: Abstraction has 32292 states and 45432 transitions. [2021-11-25 18:05:04,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.25) internal successors, (57), 5 states have internal predecessors, (57), 3 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:05:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 32292 states and 45432 transitions. [2021-11-25 18:05:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-25 18:05:04,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:04,082 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 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] [2021-11-25 18:05:04,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:05:04,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404e7fae-e957-4c29-9dc0-9cde9f4b8fcb/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-25 18:05:04,283 INFO L402 AbstractCegarLoop]: === Iteration 37 === 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 24 more)] === [2021-11-25 18:05:04,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:04,284 INFO L85 PathProgramCache]: Analyzing trace with hash -101073318, now seen corresponding path program 1 times [2021-11-25 18:05:04,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:04,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616711991] [2021-11-25 18:05:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:04,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:04,620 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-11-25 18:05:04,620 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:04,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616711991] [2021-11-25 18:05:04,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616711991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:04,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:04,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:05:04,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881500201] [2021-11-25 18:05:04,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:04,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:05:04,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:04,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:05:04,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:04,623 INFO L87 Difference]: Start difference. First operand 32292 states and 45432 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:05:18,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:05:18,988 INFO L93 Difference]: Finished difference Result 32372 states and 45508 transitions. [2021-11-25 18:05:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 18:05:18,988 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 160 [2021-11-25 18:05:18,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:05:19,094 INFO L225 Difference]: With dead ends: 32372 [2021-11-25 18:05:19,094 INFO L226 Difference]: Without dead ends: 32262 [2021-11-25 18:05:19,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:05:19,109 INFO L933 BasicCegarLoop]: 4320 mSDtfsCounter, 1833 mSDsluCounter, 12710 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 15675 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:05:19,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1838 Valid, 15675 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2021-11-25 18:05:19,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32262 states. [2021-11-25 18:05:22,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32262 to 32213. [2021-11-25 18:05:22,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32213 states, 18674 states have (on average 1.282960265609939) internal successors, (23958), 20300 states have internal predecessors, (23958), 10304 states have call successors, (10304), 3278 states have call predecessors, (10304), 3230 states have return successors, (11023), 9614 states have call predecessors, (11023), 10237 states have call successors, (11023) [2021-11-25 18:05:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32213 states to 32213 states and 45285 transitions. [2021-11-25 18:05:22,762 INFO L78 Accepts]: Start accepts. Automaton has 32213 states and 45285 transitions. Word has length 160 [2021-11-25 18:05:22,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:05:22,762 INFO L470 AbstractCegarLoop]: Abstraction has 32213 states and 45285 transitions. [2021-11-25 18:05:22,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-25 18:05:22,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32213 states and 45285 transitions. [2021-11-25 18:05:22,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-25 18:05:22,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:05:22,766 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 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] [2021-11-25 18:05:22,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-25 18:05:22,766 INFO L402 AbstractCegarLoop]: === Iteration 38 === 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 24 more)] === [2021-11-25 18:05:22,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:05:22,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1023787906, now seen corresponding path program 1 times [2021-11-25 18:05:22,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:05:22,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342762420] [2021-11-25 18:05:22,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:05:22,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:05:22,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:05:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2021-11-25 18:05:23,095 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:05:23,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342762420] [2021-11-25 18:05:23,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342762420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:05:23,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:05:23,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:05:23,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074443240] [2021-11-25 18:05:23,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:05:23,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 18:05:23,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:05:23,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 18:05:23,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 18:05:23,097 INFO L87 Difference]: Start difference. First operand 32213 states and 45285 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (33), 3 states have call predecessors, (33), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-11-25 18:05:26,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []