./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/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_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:24:02,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:24:02,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:24:02,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:24:02,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:24:02,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:24:02,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:24:02,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:24:02,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:24:02,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:24:02,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:24:02,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:24:02,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:24:02,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:24:02,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:24:02,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:24:02,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:24:02,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:24:02,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:24:02,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:24:02,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:24:02,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:24:02,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:24:02,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:24:02,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:24:02,461 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:24:02,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:24:02,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:24:02,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:24:02,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:24:02,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:24:02,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:24:02,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:24:02,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:24:02,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:24:02,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:24:02,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:24:02,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:24:02,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:24:02,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:24:02,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:24:02,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:24:02,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:24:02,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:24:02,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:24:02,537 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:24:02,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:24:02,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:24:02,550 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:24:02,550 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:24:02,550 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:24:02,550 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:24:02,551 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:24:02,551 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:24:02,551 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:24:02,551 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:24:02,552 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:24:02,552 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:24:02,552 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:24:02,552 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:24:02,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:24:02,554 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:24:02,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:24:02,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:24:02,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:24:02,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:24:02,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:24:02,555 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:24:02,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:24:02,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:24:02,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:24:02,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:02,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:24:02,557 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:24:02,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:24:02,557 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:24:02,558 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:24:02,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:24:02,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:24:02,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:24:02,559 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a40e66604094f312102b838d8c965fbe1879fb2092ea49e39f812ee4cfee256 [2022-11-22 01:24:02,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:24:02,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:24:02,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:24:02,934 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:24:02,939 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:24:02,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-22 01:24:06,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:24:07,281 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:24:07,282 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-22 01:24:07,416 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/data/dbe5092ba/3da620615ece4f58a8f5d0b668c349d4/FLAG22392ee73 [2022-11-22 01:24:07,441 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/data/dbe5092ba/3da620615ece4f58a8f5d0b668c349d4 [2022-11-22 01:24:07,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:24:07,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:24:07,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:07,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:24:07,456 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:24:07,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:07" (1/1) ... [2022-11-22 01:24:07,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729af49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:07, skipping insertion in model container [2022-11-22 01:24:07,460 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:24:07" (1/1) ... [2022-11-22 01:24:07,468 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:24:07,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:24:16,586 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2022-11-22 01:24:16,591 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2022-11-22 01:24:16,591 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2022-11-22 01:24:16,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2022-11-22 01:24:16,592 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2022-11-22 01:24:16,593 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2022-11-22 01:24:16,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2022-11-22 01:24:16,594 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2022-11-22 01:24:16,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2022-11-22 01:24:16,595 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2022-11-22 01:24:16,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2022-11-22 01:24:16,596 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2022-11-22 01:24:16,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2022-11-22 01:24:16,597 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2022-11-22 01:24:16,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2022-11-22 01:24:16,598 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2022-11-22 01:24:16,599 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2022-11-22 01:24:16,610 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2022-11-22 01:24:16,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2022-11-22 01:24:16,611 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2022-11-22 01:24:16,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2022-11-22 01:24:16,612 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2022-11-22 01:24:16,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2022-11-22 01:24:16,613 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2022-11-22 01:24:16,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2022-11-22 01:24:16,614 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2022-11-22 01:24:16,615 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2022-11-22 01:24:16,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2022-11-22 01:24:16,617 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2022-11-22 01:24:16,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2022-11-22 01:24:16,618 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2022-11-22 01:24:16,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2022-11-22 01:24:16,619 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2022-11-22 01:24:16,620 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2022-11-22 01:24:16,620 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2022-11-22 01:24:16,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2022-11-22 01:24:16,621 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2022-11-22 01:24:16,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2022-11-22 01:24:16,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2022-11-22 01:24:16,622 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2022-11-22 01:24:16,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2022-11-22 01:24:16,623 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2022-11-22 01:24:16,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2022-11-22 01:24:16,624 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2022-11-22 01:24:16,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2022-11-22 01:24:16,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2022-11-22 01:24:16,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2022-11-22 01:24:16,626 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2022-11-22 01:24:16,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2022-11-22 01:24:16,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2022-11-22 01:24:16,627 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2022-11-22 01:24:16,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2022-11-22 01:24:16,628 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2022-11-22 01:24:16,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2022-11-22 01:24:16,629 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2022-11-22 01:24:16,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2022-11-22 01:24:16,630 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2022-11-22 01:24:16,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2022-11-22 01:24:16,631 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2022-11-22 01:24:16,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2022-11-22 01:24:16,632 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2022-11-22 01:24:16,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2022-11-22 01:24:16,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2022-11-22 01:24:16,633 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2022-11-22 01:24:16,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2022-11-22 01:24:16,634 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2022-11-22 01:24:16,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2022-11-22 01:24:16,635 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2022-11-22 01:24:16,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2022-11-22 01:24:16,636 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2022-11-22 01:24:16,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2022-11-22 01:24:16,637 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2022-11-22 01:24:16,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2022-11-22 01:24:16,638 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2022-11-22 01:24:16,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2022-11-22 01:24:16,639 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2022-11-22 01:24:16,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2022-11-22 01:24:16,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2022-11-22 01:24:16,640 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2022-11-22 01:24:16,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2022-11-22 01:24:16,641 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2022-11-22 01:24:16,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2022-11-22 01:24:16,642 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2022-11-22 01:24:16,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2022-11-22 01:24:16,643 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2022-11-22 01:24:16,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2022-11-22 01:24:16,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2022-11-22 01:24:16,644 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2022-11-22 01:24:16,677 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:16,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:24:17,774 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2022-11-22 01:24:17,782 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2022-11-22 01:24:17,783 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2022-11-22 01:24:17,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2022-11-22 01:24:17,785 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2022-11-22 01:24:17,786 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2022-11-22 01:24:17,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2022-11-22 01:24:17,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2022-11-22 01:24:17,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2022-11-22 01:24:17,788 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2022-11-22 01:24:17,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2022-11-22 01:24:17,789 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2022-11-22 01:24:17,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2022-11-22 01:24:17,790 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2022-11-22 01:24:17,791 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2022-11-22 01:24:17,792 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2022-11-22 01:24:17,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2022-11-22 01:24:17,793 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2022-11-22 01:24:17,794 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2022-11-22 01:24:17,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2022-11-22 01:24:17,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2022-11-22 01:24:17,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2022-11-22 01:24:17,797 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2022-11-22 01:24:17,798 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2022-11-22 01:24:17,799 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2022-11-22 01:24:17,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2022-11-22 01:24:17,801 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2022-11-22 01:24:17,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2022-11-22 01:24:17,802 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2022-11-22 01:24:17,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2022-11-22 01:24:17,803 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2022-11-22 01:24:17,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2022-11-22 01:24:17,804 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2022-11-22 01:24:17,805 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2022-11-22 01:24:17,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2022-11-22 01:24:17,806 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2022-11-22 01:24:17,808 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2022-11-22 01:24:17,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2022-11-22 01:24:17,809 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2022-11-22 01:24:17,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2022-11-22 01:24:17,810 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2022-11-22 01:24:17,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2022-11-22 01:24:17,811 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2022-11-22 01:24:17,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2022-11-22 01:24:17,812 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2022-11-22 01:24:17,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2022-11-22 01:24:17,813 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2022-11-22 01:24:17,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2022-11-22 01:24:17,814 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2022-11-22 01:24:17,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2022-11-22 01:24:17,815 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2022-11-22 01:24:17,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2022-11-22 01:24:17,816 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2022-11-22 01:24:17,818 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2022-11-22 01:24:17,819 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2022-11-22 01:24:17,821 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2022-11-22 01:24:17,826 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2022-11-22 01:24:17,827 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2022-11-22 01:24:17,828 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2022-11-22 01:24:17,828 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2022-11-22 01:24:17,829 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2022-11-22 01:24:17,831 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2022-11-22 01:24:17,832 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2022-11-22 01:24:17,833 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2022-11-22 01:24:17,834 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2022-11-22 01:24:17,839 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2022-11-22 01:24:17,843 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2022-11-22 01:24:17,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2022-11-22 01:24:17,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2022-11-22 01:24:17,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2022-11-22 01:24:17,845 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2022-11-22 01:24:17,846 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2022-11-22 01:24:17,846 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2022-11-22 01:24:17,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2022-11-22 01:24:17,849 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2022-11-22 01:24:17,849 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2022-11-22 01:24:17,850 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2022-11-22 01:24:17,850 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2022-11-22 01:24:17,852 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2022-11-22 01:24:17,853 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2022-11-22 01:24:17,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2022-11-22 01:24:17,854 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2022-11-22 01:24:17,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2022-11-22 01:24:17,855 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2022-11-22 01:24:17,856 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2022-11-22 01:24:17,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2022-11-22 01:24:17,857 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2022-11-22 01:24:17,858 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2022-11-22 01:24:17,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:24:18,243 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:24:18,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18 WrapperNode [2022-11-22 01:24:18,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:24:18,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:18,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:24:18,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:24:18,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:18,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:18,799 INFO L138 Inliner]: procedures = 963, calls = 5049, calls flagged for inlining = 494, calls inlined = 305, statements flattened = 9457 [2022-11-22 01:24:18,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:24:18,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:24:18,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:24:18,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:24:18,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:18,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:18,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:18,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,284 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:24:19,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:24:19,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:24:19,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:24:19,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (1/1) ... [2022-11-22 01:24:19,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:24:19,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:24:19,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:24:19,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:24:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_timer [2022-11-22 01:24:19,481 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_timer [2022-11-22 01:24:19,481 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-22 01:24:19,482 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-22 01:24:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-22 01:24:19,482 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-22 01:24:19,482 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-22 01:24:19,482 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-22 01:24:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_heartbeat [2022-11-22 01:24:19,483 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_heartbeat [2022-11-22 01:24:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure sock_init_data [2022-11-22 01:24:19,485 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_init_data [2022-11-22 01:24:19,485 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-22 01:24:19,485 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-22 01:24:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_135 [2022-11-22 01:24:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_135 [2022-11-22 01:24:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure proto_unregister [2022-11-22 01:24:19,486 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_unregister [2022-11-22 01:24:19,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:24:19,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-22 01:24:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:24:19,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-22 01:24:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure rose_add_loopback_node [2022-11-22 01:24:19,487 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_add_loopback_node [2022-11-22 01:24:19,487 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-22 01:24:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-22 01:24:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure sock_set_flag [2022-11-22 01:24:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_set_flag [2022-11-22 01:24:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-22 01:24:19,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-22 01:24:19,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-22 01:24:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure rose_send_frame [2022-11-22 01:24:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_send_frame [2022-11-22 01:24:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure rose_destroy_socket [2022-11-22 01:24:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_destroy_socket [2022-11-22 01:24:19,489 INFO L130 BoogieDeclarations]: Found specification of procedure rose_write_internal [2022-11-22 01:24:19,489 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_write_internal [2022-11-22 01:24:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-22 01:24:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-22 01:24:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_loopback_node [2022-11-22 01:24:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_loopback_node [2022-11-22 01:24:19,490 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:24:19,490 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:24:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:24:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-22 01:24:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure rose_requeue_frames [2022-11-22 01:24:19,491 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_requeue_frames [2022-11-22 01:24:19,491 INFO L130 BoogieDeclarations]: Found specification of procedure rose_rx_call_request [2022-11-22 01:24:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_rx_call_request [2022-11-22 01:24:19,492 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-22 01:24:19,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-22 01:24:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure rose_dev_get [2022-11-22 01:24:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_dev_get [2022-11-22 01:24:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-11-22 01:24:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:24:19,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:24:19,493 INFO L130 BoogieDeclarations]: Found specification of procedure rose_new_lci [2022-11-22 01:24:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_new_lci [2022-11-22 01:24:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-11-22 01:24:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-11-22 01:24:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:24:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-22 01:24:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:24:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:24:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-22 01:24:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure rose_neigh_open [2022-11-22 01:24:19,501 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_neigh_open [2022-11-22 01:24:19,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:24:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:24:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure rose_validate_nr [2022-11-22 01:24:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_validate_nr [2022-11-22 01:24:19,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:24:19,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-22 01:24:19,503 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-22 01:24:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-22 01:24:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-11-22 01:24:19,505 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-11-22 01:24:19,505 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2022-11-22 01:24:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2022-11-22 01:24:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:24:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:24:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:24:19,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:24:19,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:24:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure ax2asc [2022-11-22 01:24:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ax2asc [2022-11-22 01:24:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-22 01:24:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t0timer [2022-11-22 01:24:19,507 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t0timer [2022-11-22 01:24:19,507 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_restart_request [2022-11-22 01:24:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_restart_request [2022-11-22 01:24:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-22 01:24:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-22 01:24:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 01:24:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 01:24:19,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 01:24:19,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 01:24:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure rose_process_rx_frame [2022-11-22 01:24:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_process_rx_frame [2022-11-22 01:24:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:24:19,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:24:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:24:19,509 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-22 01:24:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-22 01:24:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-11-22 01:24:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-11-22 01:24:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-22 01:24:19,510 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put [2022-11-22 01:24:19,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put [2022-11-22 01:24:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:24:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:24:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-22 01:24:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-22 01:24:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure rose_clear_queues [2022-11-22 01:24:19,511 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_clear_queues [2022-11-22 01:24:19,511 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-22 01:24:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-22 01:24:19,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:24:19,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-22 01:24:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:24:19,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-22 01:24:19,513 INFO L130 BoogieDeclarations]: Found specification of procedure rose_insert_socket [2022-11-22 01:24:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_insert_socket [2022-11-22 01:24:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure rose_parse_facilities [2022-11-22 01:24:19,514 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_parse_facilities [2022-11-22 01:24:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:24:19,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:24:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-22 01:24:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:24:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-22 01:24:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-22 01:24:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_125 [2022-11-22 01:24:19,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_125 [2022-11-22 01:24:19,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126 [2022-11-22 01:24:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126 [2022-11-22 01:24:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 01:24:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 01:24:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:24:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:24:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127___0 [2022-11-22 01:24:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127___0 [2022-11-22 01:24:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_idletimer [2022-11-22 01:24:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_idletimer [2022-11-22 01:24:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-22 01:24:19,517 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-22 01:24:19,517 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_link [2022-11-22 01:24:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_link [2022-11-22 01:24:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:24:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-22 01:24:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:24:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-22 01:24:19,518 INFO L130 BoogieDeclarations]: Found specification of procedure rose_find_socket [2022-11-22 01:24:19,518 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_find_socket [2022-11-22 01:24:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_node [2022-11-22 01:24:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_node [2022-11-22 01:24:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-22 01:24:19,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-22 01:24:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:24:19,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:24:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:24:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_display_timer [2022-11-22 01:24:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_display_timer [2022-11-22 01:24:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_route [2022-11-22 01:24:19,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_route [2022-11-22 01:24:19,520 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_listen_release [2022-11-22 01:24:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_listen_release [2022-11-22 01:24:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmp [2022-11-22 01:24:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmp [2022-11-22 01:24:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_ftimer [2022-11-22 01:24:19,521 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_ftimer [2022-11-22 01:24:19,521 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_route_by_neigh [2022-11-22 01:24:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_route_by_neigh [2022-11-22 01:24:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:24:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-22 01:24:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:24:19,522 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:24:19,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_134 [2022-11-22 01:24:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_134 [2022-11-22 01:24:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-22 01:24:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-22 01:24:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:24:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:24:19,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:24:19,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-22 01:24:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:24:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-22 01:24:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure rose_setup [2022-11-22 01:24:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_setup [2022-11-22 01:24:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wmem_alloc_get [2022-11-22 01:24:19,524 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wmem_alloc_get [2022-11-22 01:24:19,524 INFO L130 BoogieDeclarations]: Found specification of procedure sk_alloc [2022-11-22 01:24:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_alloc [2022-11-22 01:24:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ax25cmp [2022-11-22 01:24:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25cmp [2022-11-22 01:24:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:24:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:24:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-22 01:24:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-22 01:24:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t3timer [2022-11-22 01:24:19,526 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t3timer [2022-11-22 01:24:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-22 01:24:19,527 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-22 01:24:19,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:24:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:24:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:24:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-22 01:24:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_neigh [2022-11-22 01:24:19,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_neigh [2022-11-22 01:24:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:24:19,528 INFO L130 BoogieDeclarations]: Found specification of procedure rose_disconnect [2022-11-22 01:24:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_disconnect [2022-11-22 01:24:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 01:24:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 01:24:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-22 01:24:19,529 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-22 01:24:19,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:24:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure sk_rmem_alloc_get [2022-11-22 01:24:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_rmem_alloc_get [2022-11-22 01:24:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-22 01:24:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-22 01:24:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:24:19,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-22 01:24:19,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-22 01:24:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:24:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:24:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_free_lci [2022-11-22 01:24:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_free_lci [2022-11-22 01:24:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:24:19,531 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:24:19,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:24:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-22 01:24:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure rose2asc [2022-11-22 01:24:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rose2asc [2022-11-22 01:24:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure rose_get_neigh [2022-11-22 01:24:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_get_neigh [2022-11-22 01:24:19,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:24:19,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:24:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:24:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-22 01:24:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-22 01:24:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-22 01:24:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-22 01:24:19,533 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-22 01:24:19,533 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kick [2022-11-22 01:24:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kick [2022-11-22 01:24:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_149 [2022-11-22 01:24:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_149 [2022-11-22 01:24:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t2timer [2022-11-22 01:24:19,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t2timer [2022-11-22 01:24:19,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2022-11-22 01:24:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2022-11-22 01:24:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:24:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 01:24:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-11-22 01:24:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-11-22 01:24:19,535 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmpm [2022-11-22 01:24:19,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmpm [2022-11-22 01:24:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure rose_enquiry_response [2022-11-22 01:24:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_enquiry_response [2022-11-22 01:24:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:24:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:24:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:24:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-22 01:24:19,536 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_transport_header [2022-11-22 01:24:19,536 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_transport_header [2022-11-22 01:24:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-22 01:24:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-22 01:24:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kill_by_neigh [2022-11-22 01:24:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kill_by_neigh [2022-11-22 01:24:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-22 01:24:19,537 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-22 01:24:19,537 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_t0timer [2022-11-22 01:24:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_t0timer [2022-11-22 01:24:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:24:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:24:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:24:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:24:19,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-22 01:24:19,538 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-22 01:24:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-22 01:24:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:24:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:24:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_orphan [2022-11-22 01:24:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_orphan [2022-11-22 01:24:19,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 01:24:19,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-22 01:24:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:24:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-22 01:24:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-22 01:24:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:24:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-22 01:24:19,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_150 [2022-11-22 01:24:19,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_150 [2022-11-22 01:24:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:24:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:24:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_hash_from_sk [2022-11-22 01:24:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_hash_from_sk [2022-11-22 01:24:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_frame [2022-11-22 01:24:19,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_frame [2022-11-22 01:24:19,541 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 01:24:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 01:24:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_idletimer [2022-11-22 01:24:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_idletimer [2022-11-22 01:24:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:24:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-22 01:24:19,542 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:24:19,542 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:24:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127 [2022-11-22 01:24:19,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127 [2022-11-22 01:24:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_128 [2022-11-22 01:24:19,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_128 [2022-11-22 01:24:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:24:19,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-22 01:24:19,543 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_open [2022-11-22 01:24:19,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_open [2022-11-22 01:24:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure rose_nodes_open [2022-11-22 01:24:19,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_nodes_open [2022-11-22 01:24:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:24:19,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-22 01:24:19,544 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_clear_request [2022-11-22 01:24:19,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_clear_request [2022-11-22 01:24:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put___0 [2022-11-22 01:24:19,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put___0 [2022-11-22 01:24:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126___0 [2022-11-22 01:24:19,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126___0 [2022-11-22 01:24:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:24:19,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:24:19,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:24:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-22 01:24:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-22 01:24:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-22 01:24:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure asc2ax [2022-11-22 01:24:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure asc2ax [2022-11-22 01:24:19,546 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-22 01:24:19,546 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-22 01:24:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-22 01:24:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-22 01:24:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:24:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure rose_frames_acked [2022-11-22 01:24:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_frames_acked [2022-11-22 01:24:19,547 INFO L130 BoogieDeclarations]: Found specification of procedure net_eq [2022-11-22 01:24:19,547 INFO L138 BoogieDeclarations]: Found implementation of procedure net_eq [2022-11-22 01:24:19,548 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-22 01:24:19,548 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-22 01:24:21,071 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:24:21,077 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:24:21,761 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:25:26,028 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:25:27,837 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:25:27,838 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-22 01:25:27,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:25:27 BoogieIcfgContainer [2022-11-22 01:25:27,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:25:27,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:25:27,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:25:27,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:25:27,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:24:07" (1/3) ... [2022-11-22 01:25:27,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70700dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:25:27, skipping insertion in model container [2022-11-22 01:25:27,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:24:18" (2/3) ... [2022-11-22 01:25:27,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70700dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:25:27, skipping insertion in model container [2022-11-22 01:25:27,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:25:27" (3/3) ... [2022-11-22 01:25:27,863 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-22 01:25:27,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:25:27,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-22 01:25:28,011 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:25:28,018 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d6e41f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:25:28,018 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-22 01:25:28,033 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) [2022-11-22 01:25:28,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 01:25:28,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:28,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:28,044 INFO L420 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)] === [2022-11-22 01:25:28,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:28,051 INFO L85 PathProgramCache]: Analyzing trace with hash -771250644, now seen corresponding path program 1 times [2022-11-22 01:25:28,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:28,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605435548] [2022-11-22 01:25:28,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:28,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:30,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:30,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605435548] [2022-11-22 01:25:30,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605435548] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:30,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:30,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 01:25:30,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888622217] [2022-11-22 01:25:30,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:30,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 01:25:30,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:30,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 01:25:30,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:25:30,434 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) [2022-11-22 01:25:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:51,044 INFO L93 Difference]: Finished difference Result 5465 states and 8125 transitions. [2022-11-22 01:25:51,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:25:51,047 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 [2022-11-22 01:25:51,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:51,089 INFO L225 Difference]: With dead ends: 5465 [2022-11-22 01:25:51,089 INFO L226 Difference]: Without dead ends: 3117 [2022-11-22 01:25:51,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 01:25:51,115 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 3121 mSDsluCounter, 10227 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 13720 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:51,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 13720 Invalid, 3197 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 19.8s Time] [2022-11-22 01:25:51,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-11-22 01:25:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2022-11-22 01:25:51,408 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) [2022-11-22 01:25:51,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4436 transitions. [2022-11-22 01:25:51,445 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4436 transitions. Word has length 16 [2022-11-22 01:25:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:51,446 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4436 transitions. [2022-11-22 01:25:51,446 INFO L496 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) [2022-11-22 01:25:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4436 transitions. [2022-11-22 01:25:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-22 01:25:51,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:51,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:25:51,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:25:51,451 INFO L420 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)] === [2022-11-22 01:25:51,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:51,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1938400162, now seen corresponding path program 1 times [2022-11-22 01:25:51,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:51,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283341233] [2022-11-22 01:25:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:51,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:52,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:25:52,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:52,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283341233] [2022-11-22 01:25:52,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283341233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:52,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:52,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:25:52,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476369375] [2022-11-22 01:25:52,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:52,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:25:52,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:25:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:25:52,018 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) [2022-11-22 01:25:55,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:25:55,279 INFO L93 Difference]: Finished difference Result 6206 states and 8944 transitions. [2022-11-22 01:25:55,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:25:55,280 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 [2022-11-22 01:25:55,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:25:55,303 INFO L225 Difference]: With dead ends: 6206 [2022-11-22 01:25:55,303 INFO L226 Difference]: Without dead ends: 3103 [2022-11-22 01:25:55,321 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:25:55,323 INFO L413 NwaCegarLoop]: 2982 mSDtfsCounter, 3328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3328 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:25:55,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 2982 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 01:25:55,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2022-11-22 01:25:55,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103. [2022-11-22 01:25:55,478 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) [2022-11-22 01:25:55,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4427 transitions. [2022-11-22 01:25:55,508 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4427 transitions. Word has length 19 [2022-11-22 01:25:55,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:25:55,509 INFO L495 AbstractCegarLoop]: Abstraction has 3103 states and 4427 transitions. [2022-11-22 01:25:55,509 INFO L496 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) [2022-11-22 01:25:55,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4427 transitions. [2022-11-22 01:25:55,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-22 01:25:55,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:25:55,511 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:25:55,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:25:55,511 INFO L420 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)] === [2022-11-22 01:25:55,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:25:55,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2111176268, now seen corresponding path program 1 times [2022-11-22 01:25:55,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:25:55,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530877571] [2022-11-22 01:25:55,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:25:55,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:25:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:25:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:25:56,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:25:56,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530877571] [2022-11-22 01:25:56,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530877571] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:25:56,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:25:56,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:25:56,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464847440] [2022-11-22 01:25:56,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:25:56,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:25:56,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:25:56,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:25:56,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:25:56,093 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) [2022-11-22 01:26:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:02,057 INFO L93 Difference]: Finished difference Result 3103 states and 4427 transitions. [2022-11-22 01:26:02,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:02,058 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 [2022-11-22 01:26:02,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:02,080 INFO L225 Difference]: With dead ends: 3103 [2022-11-22 01:26:02,080 INFO L226 Difference]: Without dead ends: 3101 [2022-11-22 01:26:02,083 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:02,084 INFO L413 NwaCegarLoop]: 2979 mSDtfsCounter, 3321 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 5958 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:02,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 5958 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2022-11-22 01:26:02,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2022-11-22 01:26:02,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3101. [2022-11-22 01:26:02,258 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) [2022-11-22 01:26:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4425 transitions. [2022-11-22 01:26:02,277 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4425 transitions. Word has length 38 [2022-11-22 01:26:02,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:02,278 INFO L495 AbstractCegarLoop]: Abstraction has 3101 states and 4425 transitions. [2022-11-22 01:26:02,278 INFO L496 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) [2022-11-22 01:26:02,278 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4425 transitions. [2022-11-22 01:26:02,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-22 01:26:02,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:02,280 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:02,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:26:02,281 INFO L420 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)] === [2022-11-22 01:26:02,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:02,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1953254279, now seen corresponding path program 1 times [2022-11-22 01:26:02,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:02,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585242199] [2022-11-22 01:26:02,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:02,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:02,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:02,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585242199] [2022-11-22 01:26:02,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585242199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:02,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:02,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:02,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141891019] [2022-11-22 01:26:02,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:02,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:02,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:02,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:02,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:02,958 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) [2022-11-22 01:26:05,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:09,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:09,410 INFO L93 Difference]: Finished difference Result 3101 states and 4425 transitions. [2022-11-22 01:26:09,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:09,411 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 [2022-11-22 01:26:09,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:09,440 INFO L225 Difference]: With dead ends: 3101 [2022-11-22 01:26:09,441 INFO L226 Difference]: Without dead ends: 3099 [2022-11-22 01:26:09,444 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:09,446 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 3318 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3320 SdHoareTripleChecker+Valid, 5954 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:09,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3320 Valid, 5954 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-11-22 01:26:09,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2022-11-22 01:26:09,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3099. [2022-11-22 01:26:09,668 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) [2022-11-22 01:26:09,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 4423 transitions. [2022-11-22 01:26:09,689 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 4423 transitions. Word has length 43 [2022-11-22 01:26:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:09,689 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 4423 transitions. [2022-11-22 01:26:09,690 INFO L496 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) [2022-11-22 01:26:09,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 4423 transitions. [2022-11-22 01:26:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-22 01:26:09,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:09,702 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:09,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:26:09,703 INFO L420 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)] === [2022-11-22 01:26:09,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:09,703 INFO L85 PathProgramCache]: Analyzing trace with hash -588406478, now seen corresponding path program 1 times [2022-11-22 01:26:09,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:09,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427771954] [2022-11-22 01:26:09,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:09,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:10,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:10,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427771954] [2022-11-22 01:26:10,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427771954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:10,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:10,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:10,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219175313] [2022-11-22 01:26:10,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:10,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:10,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:10,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:10,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:10,306 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) [2022-11-22 01:26:13,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:16,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:16,359 INFO L93 Difference]: Finished difference Result 3099 states and 4423 transitions. [2022-11-22 01:26:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:16,360 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 [2022-11-22 01:26:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:16,381 INFO L225 Difference]: With dead ends: 3099 [2022-11-22 01:26:16,381 INFO L226 Difference]: Without dead ends: 3097 [2022-11-22 01:26:16,384 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:16,385 INFO L413 NwaCegarLoop]: 2975 mSDtfsCounter, 3315 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 5950 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:16,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 5950 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-22 01:26:16,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2022-11-22 01:26:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2022-11-22 01:26:16,605 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) [2022-11-22 01:26:16,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4421 transitions. [2022-11-22 01:26:16,624 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4421 transitions. Word has length 48 [2022-11-22 01:26:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:16,625 INFO L495 AbstractCegarLoop]: Abstraction has 3097 states and 4421 transitions. [2022-11-22 01:26:16,625 INFO L496 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) [2022-11-22 01:26:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4421 transitions. [2022-11-22 01:26:16,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-22 01:26:16,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:16,627 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:16,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:26:16,628 INFO L420 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)] === [2022-11-22 01:26:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -589750216, now seen corresponding path program 1 times [2022-11-22 01:26:16,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:16,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976945221] [2022-11-22 01:26:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:17,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:17,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976945221] [2022-11-22 01:26:17,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976945221] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:17,348 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:17,348 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:17,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164546354] [2022-11-22 01:26:17,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:17,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:17,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:17,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:17,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:17,349 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) [2022-11-22 01:26:22,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:22,402 INFO L93 Difference]: Finished difference Result 3097 states and 4421 transitions. [2022-11-22 01:26:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:22,403 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 [2022-11-22 01:26:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:22,425 INFO L225 Difference]: With dead ends: 3097 [2022-11-22 01:26:22,425 INFO L226 Difference]: Without dead ends: 3095 [2022-11-22 01:26:22,428 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:22,429 INFO L413 NwaCegarLoop]: 2973 mSDtfsCounter, 3312 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3314 SdHoareTripleChecker+Valid, 5946 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:22,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 5946 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:26:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2022-11-22 01:26:22,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3095. [2022-11-22 01:26:22,662 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) [2022-11-22 01:26:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4419 transitions. [2022-11-22 01:26:22,680 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4419 transitions. Word has length 53 [2022-11-22 01:26:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:22,680 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 4419 transitions. [2022-11-22 01:26:22,681 INFO L496 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) [2022-11-22 01:26:22,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4419 transitions. [2022-11-22 01:26:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-22 01:26:22,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:22,684 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:22,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:26:22,684 INFO L420 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)] === [2022-11-22 01:26:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:22,685 INFO L85 PathProgramCache]: Analyzing trace with hash -901102862, now seen corresponding path program 1 times [2022-11-22 01:26:22,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:22,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162682456] [2022-11-22 01:26:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:22,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:23,222 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:23,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:23,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162682456] [2022-11-22 01:26:23,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162682456] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:23,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:23,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:23,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89680481] [2022-11-22 01:26:23,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:23,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:23,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:23,225 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) [2022-11-22 01:26:28,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:28,687 INFO L93 Difference]: Finished difference Result 3095 states and 4419 transitions. [2022-11-22 01:26:28,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:28,688 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 [2022-11-22 01:26:28,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:28,704 INFO L225 Difference]: With dead ends: 3095 [2022-11-22 01:26:28,705 INFO L226 Difference]: Without dead ends: 3093 [2022-11-22 01:26:28,707 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:28,708 INFO L413 NwaCegarLoop]: 2971 mSDtfsCounter, 3309 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3311 SdHoareTripleChecker+Valid, 5942 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:28,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 5942 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 01:26:28,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2022-11-22 01:26:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 3093. [2022-11-22 01:26:29,048 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) [2022-11-22 01:26:29,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4417 transitions. [2022-11-22 01:26:29,064 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4417 transitions. Word has length 58 [2022-11-22 01:26:29,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:29,065 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4417 transitions. [2022-11-22 01:26:29,065 INFO L496 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) [2022-11-22 01:26:29,065 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4417 transitions. [2022-11-22 01:26:29,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-22 01:26:29,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:29,067 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:29,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:26:29,067 INFO L420 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)] === [2022-11-22 01:26:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:29,068 INFO L85 PathProgramCache]: Analyzing trace with hash -553826378, now seen corresponding path program 1 times [2022-11-22 01:26:29,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:29,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446765226] [2022-11-22 01:26:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:29,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:29,523 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:29,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:29,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446765226] [2022-11-22 01:26:29,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446765226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:29,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:29,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:29,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577412789] [2022-11-22 01:26:29,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:29,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:29,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:29,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:29,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:29,525 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) [2022-11-22 01:26:34,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:34,705 INFO L93 Difference]: Finished difference Result 3093 states and 4417 transitions. [2022-11-22 01:26:34,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:34,706 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 [2022-11-22 01:26:34,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:34,722 INFO L225 Difference]: With dead ends: 3093 [2022-11-22 01:26:34,722 INFO L226 Difference]: Without dead ends: 3091 [2022-11-22 01:26:34,725 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:34,726 INFO L413 NwaCegarLoop]: 2969 mSDtfsCounter, 3306 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3308 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:34,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3308 Valid, 5938 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-22 01:26:34,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2022-11-22 01:26:35,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 3091. [2022-11-22 01:26:35,010 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) [2022-11-22 01:26:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4415 transitions. [2022-11-22 01:26:35,028 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4415 transitions. Word has length 63 [2022-11-22 01:26:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:35,029 INFO L495 AbstractCegarLoop]: Abstraction has 3091 states and 4415 transitions. [2022-11-22 01:26:35,029 INFO L496 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) [2022-11-22 01:26:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4415 transitions. [2022-11-22 01:26:35,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-22 01:26:35,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:35,031 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:35,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 01:26:35,032 INFO L420 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)] === [2022-11-22 01:26:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1468966371, now seen corresponding path program 1 times [2022-11-22 01:26:35,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:35,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83114180] [2022-11-22 01:26:35,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:35,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:35,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:35,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83114180] [2022-11-22 01:26:35,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83114180] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:35,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:35,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:35,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45628021] [2022-11-22 01:26:35,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:35,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:35,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:35,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:35,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:35,537 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) [2022-11-22 01:26:41,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:41,135 INFO L93 Difference]: Finished difference Result 3091 states and 4415 transitions. [2022-11-22 01:26:41,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:41,136 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 [2022-11-22 01:26:41,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:41,164 INFO L225 Difference]: With dead ends: 3091 [2022-11-22 01:26:41,164 INFO L226 Difference]: Without dead ends: 3089 [2022-11-22 01:26:41,166 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:41,167 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 3303 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:41,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 5934 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-22 01:26:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2022-11-22 01:26:41,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3089. [2022-11-22 01:26:41,444 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) [2022-11-22 01:26:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4413 transitions. [2022-11-22 01:26:41,462 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4413 transitions. Word has length 68 [2022-11-22 01:26:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:41,463 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 4413 transitions. [2022-11-22 01:26:41,463 INFO L496 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) [2022-11-22 01:26:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4413 transitions. [2022-11-22 01:26:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-22 01:26:41,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:41,467 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:41,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 01:26:41,468 INFO L420 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)] === [2022-11-22 01:26:41,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:41,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1766168495, now seen corresponding path program 1 times [2022-11-22 01:26:41,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:41,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984727053] [2022-11-22 01:26:41,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:41,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:26:41,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:41,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984727053] [2022-11-22 01:26:41,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984727053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:41,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:41,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:26:41,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982815239] [2022-11-22 01:26:41,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:41,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:26:41,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:41,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:26:41,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:26:41,987 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) [2022-11-22 01:26:44,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:26:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:47,291 INFO L93 Difference]: Finished difference Result 3089 states and 4413 transitions. [2022-11-22 01:26:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:26:47,292 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 [2022-11-22 01:26:47,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:47,304 INFO L225 Difference]: With dead ends: 3089 [2022-11-22 01:26:47,304 INFO L226 Difference]: Without dead ends: 3087 [2022-11-22 01:26:47,306 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:47,306 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 3304 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:47,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 5926 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 01:26:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2022-11-22 01:26:47,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3087. [2022-11-22 01:26:47,729 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) [2022-11-22 01:26:47,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4411 transitions. [2022-11-22 01:26:47,746 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4411 transitions. Word has length 73 [2022-11-22 01:26:47,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:26:47,747 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4411 transitions. [2022-11-22 01:26:47,747 INFO L496 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) [2022-11-22 01:26:47,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4411 transitions. [2022-11-22 01:26:47,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-22 01:26:47,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:26:47,750 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:26:47,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 01:26:47,750 INFO L420 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)] === [2022-11-22 01:26:47,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:26:47,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1963772519, now seen corresponding path program 1 times [2022-11-22 01:26:47,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:26:47,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227081642] [2022-11-22 01:26:47,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:26:47,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:26:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:26:48,645 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-22 01:26:48,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:26:48,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227081642] [2022-11-22 01:26:48,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227081642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:26:48,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:26:48,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:26:48,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780605829] [2022-11-22 01:26:48,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:26:48,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:26:48,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:26:48,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:26:48,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:26:48,647 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) [2022-11-22 01:26:59,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:26:59,304 INFO L93 Difference]: Finished difference Result 5880 states and 8390 transitions. [2022-11-22 01:26:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:26:59,305 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 [2022-11-22 01:26:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:26:59,343 INFO L225 Difference]: With dead ends: 5880 [2022-11-22 01:26:59,343 INFO L226 Difference]: Without dead ends: 5878 [2022-11-22 01:26:59,348 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:26:59,349 INFO L413 NwaCegarLoop]: 3675 mSDtfsCounter, 3225 mSDsluCounter, 9993 mSDsCounter, 0 mSdLazyCounter, 1412 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 13668 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:26:59,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 13668 Invalid, 1415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-22 01:26:59,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-11-22 01:27:00,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5839. [2022-11-22 01:27:00,115 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) [2022-11-22 01:27:00,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 8366 transitions. [2022-11-22 01:27:00,147 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 8366 transitions. Word has length 74 [2022-11-22 01:27:00,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:00,148 INFO L495 AbstractCegarLoop]: Abstraction has 5839 states and 8366 transitions. [2022-11-22 01:27:00,148 INFO L496 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) [2022-11-22 01:27:00,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 8366 transitions. [2022-11-22 01:27:00,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-22 01:27:00,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:00,150 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:00,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 01:27:00,151 INFO L420 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)] === [2022-11-22 01:27:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash 776010418, now seen corresponding path program 1 times [2022-11-22 01:27:00,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:00,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871294527] [2022-11-22 01:27:00,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:00,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:27:00,626 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:00,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871294527] [2022-11-22 01:27:00,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871294527] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:00,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:00,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:00,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863630038] [2022-11-22 01:27:00,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:00,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:00,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:00,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:00,628 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) [2022-11-22 01:27:06,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:06,079 INFO L93 Difference]: Finished difference Result 5839 states and 8366 transitions. [2022-11-22 01:27:06,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:06,080 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 [2022-11-22 01:27:06,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:06,108 INFO L225 Difference]: With dead ends: 5839 [2022-11-22 01:27:06,108 INFO L226 Difference]: Without dead ends: 5837 [2022-11-22 01:27:06,112 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:06,113 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3296 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3298 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:06,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 5926 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-22 01:27:06,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2022-11-22 01:27:06,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 5837. [2022-11-22 01:27:06,800 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) [2022-11-22 01:27:06,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 8363 transitions. [2022-11-22 01:27:06,832 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 8363 transitions. Word has length 75 [2022-11-22 01:27:06,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:06,833 INFO L495 AbstractCegarLoop]: Abstraction has 5837 states and 8363 transitions. [2022-11-22 01:27:06,833 INFO L496 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) [2022-11-22 01:27:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 8363 transitions. [2022-11-22 01:27:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-22 01:27:06,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:06,836 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:06,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 01:27:06,837 INFO L420 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)] === [2022-11-22 01:27:06,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:06,837 INFO L85 PathProgramCache]: Analyzing trace with hash 643965176, now seen corresponding path program 1 times [2022-11-22 01:27:06,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:06,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597822677] [2022-11-22 01:27:06,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:06,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:07,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:27:07,276 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:07,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597822677] [2022-11-22 01:27:07,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597822677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:07,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:07,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458188544] [2022-11-22 01:27:07,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:07,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:07,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:07,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:07,278 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) [2022-11-22 01:27:12,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:12,006 INFO L93 Difference]: Finished difference Result 5837 states and 8363 transitions. [2022-11-22 01:27:12,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:12,007 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 [2022-11-22 01:27:12,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:12,031 INFO L225 Difference]: With dead ends: 5837 [2022-11-22 01:27:12,031 INFO L226 Difference]: Without dead ends: 5835 [2022-11-22 01:27:12,035 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:12,035 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 3295 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3297 SdHoareTripleChecker+Valid, 5922 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:12,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 5922 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:27:12,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2022-11-22 01:27:12,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5835. [2022-11-22 01:27:12,632 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) [2022-11-22 01:27:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 8360 transitions. [2022-11-22 01:27:12,665 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 8360 transitions. Word has length 80 [2022-11-22 01:27:12,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:12,666 INFO L495 AbstractCegarLoop]: Abstraction has 5835 states and 8360 transitions. [2022-11-22 01:27:12,666 INFO L496 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) [2022-11-22 01:27:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 8360 transitions. [2022-11-22 01:27:12,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-22 01:27:12,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:12,669 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:12,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 01:27:12,669 INFO L420 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)] === [2022-11-22 01:27:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1189594253, now seen corresponding path program 1 times [2022-11-22 01:27:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:12,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685074217] [2022-11-22 01:27:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:12,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:13,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:27:13,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:13,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685074217] [2022-11-22 01:27:13,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685074217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:13,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:13,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:13,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307909198] [2022-11-22 01:27:13,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:13,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:13,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:13,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:13,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:13,095 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) [2022-11-22 01:27:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:17,978 INFO L93 Difference]: Finished difference Result 5835 states and 8360 transitions. [2022-11-22 01:27:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:17,979 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 [2022-11-22 01:27:17,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:18,007 INFO L225 Difference]: With dead ends: 5835 [2022-11-22 01:27:18,007 INFO L226 Difference]: Without dead ends: 5833 [2022-11-22 01:27:18,012 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:18,012 INFO L413 NwaCegarLoop]: 2959 mSDtfsCounter, 3292 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3294 SdHoareTripleChecker+Valid, 5918 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:18,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 5918 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 01:27:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2022-11-22 01:27:18,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5833. [2022-11-22 01:27:18,594 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) [2022-11-22 01:27:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8357 transitions. [2022-11-22 01:27:18,714 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8357 transitions. Word has length 85 [2022-11-22 01:27:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:18,714 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8357 transitions. [2022-11-22 01:27:18,714 INFO L496 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) [2022-11-22 01:27:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8357 transitions. [2022-11-22 01:27:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-22 01:27:18,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:18,717 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:18,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-22 01:27:18,717 INFO L420 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)] === [2022-11-22 01:27:18,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:18,718 INFO L85 PathProgramCache]: Analyzing trace with hash -467527094, now seen corresponding path program 1 times [2022-11-22 01:27:18,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:18,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072660041] [2022-11-22 01:27:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:18,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:19,140 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-22 01:27:19,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:19,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072660041] [2022-11-22 01:27:19,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072660041] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:19,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:19,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:19,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77629260] [2022-11-22 01:27:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:19,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:19,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:19,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:19,142 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) [2022-11-22 01:27:29,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:29,355 INFO L93 Difference]: Finished difference Result 11613 states and 16636 transitions. [2022-11-22 01:27:29,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:29,355 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 [2022-11-22 01:27:29,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:29,385 INFO L225 Difference]: With dead ends: 11613 [2022-11-22 01:27:29,385 INFO L226 Difference]: Without dead ends: 5898 [2022-11-22 01:27:29,416 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:29,417 INFO L413 NwaCegarLoop]: 2957 mSDtfsCounter, 3361 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3384 SdHoareTripleChecker+Valid, 4355 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:29,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 4355 Invalid, 2323 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-22 01:27:29,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2022-11-22 01:27:30,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5834. [2022-11-22 01:27:30,147 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) [2022-11-22 01:27:30,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8357 transitions. [2022-11-22 01:27:30,175 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8357 transitions. Word has length 102 [2022-11-22 01:27:30,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:30,176 INFO L495 AbstractCegarLoop]: Abstraction has 5834 states and 8357 transitions. [2022-11-22 01:27:30,176 INFO L496 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) [2022-11-22 01:27:30,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8357 transitions. [2022-11-22 01:27:30,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-22 01:27:30,178 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:30,179 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:30,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 01:27:30,179 INFO L420 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)] === [2022-11-22 01:27:30,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:30,179 INFO L85 PathProgramCache]: Analyzing trace with hash -364812386, now seen corresponding path program 1 times [2022-11-22 01:27:30,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:30,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011602503] [2022-11-22 01:27:30,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:30,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:30,634 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:27:30,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:30,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011602503] [2022-11-22 01:27:30,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011602503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:30,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:30,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:30,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466788373] [2022-11-22 01:27:30,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:30,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:30,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:30,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:30,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:30,636 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) [2022-11-22 01:27:32,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:27:35,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:35,765 INFO L93 Difference]: Finished difference Result 5834 states and 8357 transitions. [2022-11-22 01:27:35,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:35,765 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 [2022-11-22 01:27:35,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:35,790 INFO L225 Difference]: With dead ends: 5834 [2022-11-22 01:27:35,791 INFO L226 Difference]: Without dead ends: 5832 [2022-11-22 01:27:35,795 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:35,795 INFO L413 NwaCegarLoop]: 2956 mSDtfsCounter, 3287 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 5912 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:35,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 5912 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-22 01:27:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5832 states. [2022-11-22 01:27:36,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5832 to 5832. [2022-11-22 01:27:36,613 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) [2022-11-22 01:27:36,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8354 transitions. [2022-11-22 01:27:36,643 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8354 transitions. Word has length 91 [2022-11-22 01:27:36,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:36,644 INFO L495 AbstractCegarLoop]: Abstraction has 5832 states and 8354 transitions. [2022-11-22 01:27:36,644 INFO L496 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) [2022-11-22 01:27:36,645 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8354 transitions. [2022-11-22 01:27:36,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-22 01:27:36,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:36,647 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:36,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 01:27:36,648 INFO L420 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)] === [2022-11-22 01:27:36,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:36,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1570002123, now seen corresponding path program 1 times [2022-11-22 01:27:36,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:36,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524422386] [2022-11-22 01:27:36,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:36,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:37,028 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 01:27:37,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:37,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524422386] [2022-11-22 01:27:37,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524422386] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:37,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:37,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:37,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997758023] [2022-11-22 01:27:37,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:37,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:37,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:37,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:37,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:37,030 INFO L87 Difference]: Start difference. First operand 5832 states and 8354 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) [2022-11-22 01:27:45,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:45,356 INFO L93 Difference]: Finished difference Result 12302 states and 17814 transitions. [2022-11-22 01:27:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:27:45,357 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 [2022-11-22 01:27:45,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:45,387 INFO L225 Difference]: With dead ends: 12302 [2022-11-22 01:27:45,388 INFO L226 Difference]: Without dead ends: 6672 [2022-11-22 01:27:45,411 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:45,412 INFO L413 NwaCegarLoop]: 3595 mSDtfsCounter, 313 mSDsluCounter, 6511 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 548 SdHoareTripleChecker+Valid, 10106 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:45,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 10106 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-22 01:27:45,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2022-11-22 01:27:46,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 5891. [2022-11-22 01:27:46,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5891 states, 3508 states have (on average 1.3221208665906499) internal successors, (4638), 3782 states have internal predecessors, (4638), 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) [2022-11-22 01:27:46,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5891 states to 5891 states and 8446 transitions. [2022-11-22 01:27:46,098 INFO L78 Accepts]: Start accepts. Automaton has 5891 states and 8446 transitions. Word has length 100 [2022-11-22 01:27:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:46,099 INFO L495 AbstractCegarLoop]: Abstraction has 5891 states and 8446 transitions. [2022-11-22 01:27:46,099 INFO L496 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) [2022-11-22 01:27:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5891 states and 8446 transitions. [2022-11-22 01:27:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-22 01:27:46,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:46,102 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:46,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 01:27:46,102 INFO L420 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)] === [2022-11-22 01:27:46,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:46,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1639665723, now seen corresponding path program 1 times [2022-11-22 01:27:46,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:46,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045545072] [2022-11-22 01:27:46,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:46,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:46,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 01:27:46,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:46,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045545072] [2022-11-22 01:27:46,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045545072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:46,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:46,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:27:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009710793] [2022-11-22 01:27:46,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:46,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:27:46,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:46,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:27:46,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:27:46,359 INFO L87 Difference]: Start difference. First operand 5891 states and 8446 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) [2022-11-22 01:27:48,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:27:52,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:27:52,368 INFO L93 Difference]: Finished difference Result 11736 states and 16829 transitions. [2022-11-22 01:27:52,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:27:52,369 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 [2022-11-22 01:27:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:27:52,397 INFO L225 Difference]: With dead ends: 11736 [2022-11-22 01:27:52,397 INFO L226 Difference]: Without dead ends: 5892 [2022-11-22 01:27:52,423 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:27:52,424 INFO L413 NwaCegarLoop]: 2957 mSDtfsCounter, 1 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5906 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:27:52,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5906 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-22 01:27:52,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-11-22 01:27:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-11-22 01:27:53,230 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) [2022-11-22 01:27:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8447 transitions. [2022-11-22 01:27:53,252 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8447 transitions. Word has length 94 [2022-11-22 01:27:53,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:27:53,252 INFO L495 AbstractCegarLoop]: Abstraction has 5892 states and 8447 transitions. [2022-11-22 01:27:53,252 INFO L496 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) [2022-11-22 01:27:53,253 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8447 transitions. [2022-11-22 01:27:53,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-22 01:27:53,255 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:27:53,256 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:27:53,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 01:27:53,256 INFO L420 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)] === [2022-11-22 01:27:53,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:27:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1319883828, now seen corresponding path program 1 times [2022-11-22 01:27:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:27:53,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687233261] [2022-11-22 01:27:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:27:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:27:53,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:27:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:27:53,700 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:27:53,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687233261] [2022-11-22 01:27:53,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687233261] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:27:53,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:27:53,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:27:53,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654017061] [2022-11-22 01:27:53,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:27:53,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:27:53,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:27:53,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:27:53,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:27:53,701 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) [2022-11-22 01:28:01,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:01,349 INFO L93 Difference]: Finished difference Result 9803 states and 13915 transitions. [2022-11-22 01:28:01,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:28:01,349 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 [2022-11-22 01:28:01,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:01,383 INFO L225 Difference]: With dead ends: 9803 [2022-11-22 01:28:01,383 INFO L226 Difference]: Without dead ends: 9801 [2022-11-22 01:28:01,388 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:01,388 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 3092 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 8857 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:01,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 8857 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-22 01:28:01,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2022-11-22 01:28:02,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 9624. [2022-11-22 01:28:02,486 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) [2022-11-22 01:28:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13723 transitions. [2022-11-22 01:28:02,521 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13723 transitions. Word has length 96 [2022-11-22 01:28:02,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:02,522 INFO L495 AbstractCegarLoop]: Abstraction has 9624 states and 13723 transitions. [2022-11-22 01:28:02,522 INFO L496 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) [2022-11-22 01:28:02,522 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13723 transitions. [2022-11-22 01:28:02,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-22 01:28:02,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:02,524 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:02,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-22 01:28:02,525 INFO L420 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)] === [2022-11-22 01:28:02,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:02,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1834286729, now seen corresponding path program 1 times [2022-11-22 01:28:02,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:02,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047873334] [2022-11-22 01:28:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:02,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:28:02,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:02,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047873334] [2022-11-22 01:28:02,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047873334] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:02,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:02,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:28:02,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662969038] [2022-11-22 01:28:02,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:02,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:02,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:02,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:02,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:02,963 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) [2022-11-22 01:28:08,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:08,723 INFO L93 Difference]: Finished difference Result 9624 states and 13723 transitions. [2022-11-22 01:28:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:28:08,723 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 [2022-11-22 01:28:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:08,765 INFO L225 Difference]: With dead ends: 9624 [2022-11-22 01:28:08,766 INFO L226 Difference]: Without dead ends: 9622 [2022-11-22 01:28:08,773 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:08,774 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 3283 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3285 SdHoareTripleChecker+Valid, 5908 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:08,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 5908 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:28:08,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9622 states. [2022-11-22 01:28:09,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9622 to 9622. [2022-11-22 01:28:09,954 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) [2022-11-22 01:28:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 13720 transitions. [2022-11-22 01:28:09,987 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 13720 transitions. Word has length 101 [2022-11-22 01:28:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:09,988 INFO L495 AbstractCegarLoop]: Abstraction has 9622 states and 13720 transitions. [2022-11-22 01:28:09,988 INFO L496 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) [2022-11-22 01:28:09,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 13720 transitions. [2022-11-22 01:28:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-22 01:28:09,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:09,990 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:09,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-22 01:28:09,991 INFO L420 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)] === [2022-11-22 01:28:09,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:09,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1370606608, now seen corresponding path program 1 times [2022-11-22 01:28:09,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:09,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790479876] [2022-11-22 01:28:09,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:10,371 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 01:28:10,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:10,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790479876] [2022-11-22 01:28:10,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790479876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:10,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:10,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:10,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367126713] [2022-11-22 01:28:10,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:10,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:10,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:10,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:10,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:10,373 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) [2022-11-22 01:28:21,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:21,563 INFO L93 Difference]: Finished difference Result 19219 states and 27414 transitions. [2022-11-22 01:28:21,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 01:28:21,564 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 [2022-11-22 01:28:21,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:21,615 INFO L225 Difference]: With dead ends: 19219 [2022-11-22 01:28:21,615 INFO L226 Difference]: Without dead ends: 9644 [2022-11-22 01:28:21,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:28:21,648 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 9 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11849 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:21,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11849 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2022-11-22 01:28:21,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9644 states. [2022-11-22 01:28:22,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9644 to 9626. [2022-11-22 01:28:22,589 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) [2022-11-22 01:28:22,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13727 transitions. [2022-11-22 01:28:22,625 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13727 transitions. Word has length 103 [2022-11-22 01:28:22,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:22,626 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 13727 transitions. [2022-11-22 01:28:22,626 INFO L496 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) [2022-11-22 01:28:22,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13727 transitions. [2022-11-22 01:28:22,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-22 01:28:22,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:22,629 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:22,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-22 01:28:22,629 INFO L420 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)] === [2022-11-22 01:28:22,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:22,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1260032000, now seen corresponding path program 1 times [2022-11-22 01:28:22,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:22,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245879371] [2022-11-22 01:28:22,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:22,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:23,251 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-22 01:28:23,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:23,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245879371] [2022-11-22 01:28:23,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245879371] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:23,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:23,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:28:23,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796201137] [2022-11-22 01:28:23,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:23,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:28:23,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:23,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:28:23,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:23,253 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) [2022-11-22 01:28:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:35,708 INFO L93 Difference]: Finished difference Result 9768 states and 13863 transitions. [2022-11-22 01:28:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:28:35,709 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 [2022-11-22 01:28:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:35,759 INFO L225 Difference]: With dead ends: 9768 [2022-11-22 01:28:35,759 INFO L226 Difference]: Without dead ends: 9766 [2022-11-22 01:28:35,766 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:35,767 INFO L413 NwaCegarLoop]: 5490 mSDtfsCounter, 2936 mSDsluCounter, 13868 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 19358 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:35,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 19358 Invalid, 2302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2022-11-22 01:28:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2022-11-22 01:28:36,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9634. [2022-11-22 01:28:36,795 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) [2022-11-22 01:28:36,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9634 states to 9634 states and 13733 transitions. [2022-11-22 01:28:36,831 INFO L78 Accepts]: Start accepts. Automaton has 9634 states and 13733 transitions. Word has length 104 [2022-11-22 01:28:36,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:36,831 INFO L495 AbstractCegarLoop]: Abstraction has 9634 states and 13733 transitions. [2022-11-22 01:28:36,831 INFO L496 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) [2022-11-22 01:28:36,831 INFO L276 IsEmpty]: Start isEmpty. Operand 9634 states and 13733 transitions. [2022-11-22 01:28:36,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-22 01:28:36,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:36,833 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:36,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-22 01:28:36,833 INFO L420 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)] === [2022-11-22 01:28:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:36,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1913163673, now seen corresponding path program 1 times [2022-11-22 01:28:36,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:36,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891559536] [2022-11-22 01:28:36,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:36,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:37,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:28:37,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:37,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891559536] [2022-11-22 01:28:37,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891559536] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:37,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:37,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:28:37,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848663641] [2022-11-22 01:28:37,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:37,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:37,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:37,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:37,310 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) [2022-11-22 01:28:42,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:42,632 INFO L93 Difference]: Finished difference Result 9634 states and 13733 transitions. [2022-11-22 01:28:42,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:28:42,633 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 [2022-11-22 01:28:42,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:42,671 INFO L225 Difference]: With dead ends: 9634 [2022-11-22 01:28:42,671 INFO L226 Difference]: Without dead ends: 9632 [2022-11-22 01:28:42,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:28:42,679 INFO L413 NwaCegarLoop]: 2952 mSDtfsCounter, 3280 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3282 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:42,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 5904 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-22 01:28:42,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9632 states. [2022-11-22 01:28:43,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9632 to 9632. [2022-11-22 01:28:43,971 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) [2022-11-22 01:28:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9632 states to 9632 states and 13730 transitions. [2022-11-22 01:28:44,008 INFO L78 Accepts]: Start accepts. Automaton has 9632 states and 13730 transitions. Word has length 106 [2022-11-22 01:28:44,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:44,009 INFO L495 AbstractCegarLoop]: Abstraction has 9632 states and 13730 transitions. [2022-11-22 01:28:44,009 INFO L496 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) [2022-11-22 01:28:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9632 states and 13730 transitions. [2022-11-22 01:28:44,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-22 01:28:44,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:44,011 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:44,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-22 01:28:44,012 INFO L420 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)] === [2022-11-22 01:28:44,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:44,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1262380349, now seen corresponding path program 1 times [2022-11-22 01:28:44,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:44,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494175189] [2022-11-22 01:28:44,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:44,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:28:44,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:44,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494175189] [2022-11-22 01:28:44,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494175189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:44,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:44,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:28:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715818934] [2022-11-22 01:28:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:44,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:44,878 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) [2022-11-22 01:28:49,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:49,948 INFO L93 Difference]: Finished difference Result 9632 states and 13730 transitions. [2022-11-22 01:28:49,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:28:49,949 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 [2022-11-22 01:28:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:49,975 INFO L225 Difference]: With dead ends: 9632 [2022-11-22 01:28:49,975 INFO L226 Difference]: Without dead ends: 9630 [2022-11-22 01:28:49,979 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:49,979 INFO L413 NwaCegarLoop]: 2950 mSDtfsCounter, 3277 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 5900 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:49,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 5900 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-22 01:28:49,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9630 states. [2022-11-22 01:28:50,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9630 to 9630. [2022-11-22 01:28:50,977 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) [2022-11-22 01:28:51,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9630 states to 9630 states and 13727 transitions. [2022-11-22 01:28:51,012 INFO L78 Accepts]: Start accepts. Automaton has 9630 states and 13727 transitions. Word has length 111 [2022-11-22 01:28:51,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:51,012 INFO L495 AbstractCegarLoop]: Abstraction has 9630 states and 13727 transitions. [2022-11-22 01:28:51,013 INFO L496 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) [2022-11-22 01:28:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 9630 states and 13727 transitions. [2022-11-22 01:28:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-22 01:28:51,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:51,015 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:51,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-22 01:28:51,015 INFO L420 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)] === [2022-11-22 01:28:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 970334689, now seen corresponding path program 1 times [2022-11-22 01:28:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:51,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598325882] [2022-11-22 01:28:51,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:51,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:28:51,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:51,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598325882] [2022-11-22 01:28:51,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598325882] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:51,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:51,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:28:51,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924643259] [2022-11-22 01:28:51,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:51,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:51,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:51,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:51,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:51,468 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) [2022-11-22 01:28:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:28:56,813 INFO L93 Difference]: Finished difference Result 9630 states and 13727 transitions. [2022-11-22 01:28:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:28:56,813 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 [2022-11-22 01:28:56,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:28:56,844 INFO L225 Difference]: With dead ends: 9630 [2022-11-22 01:28:56,844 INFO L226 Difference]: Without dead ends: 9628 [2022-11-22 01:28:56,849 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:28:56,850 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 3274 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3276 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:28:56,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3276 Valid, 5896 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-22 01:28:56,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9628 states. [2022-11-22 01:28:57,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9628 to 9628. [2022-11-22 01:28:57,859 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) [2022-11-22 01:28:57,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 13724 transitions. [2022-11-22 01:28:57,896 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 13724 transitions. Word has length 116 [2022-11-22 01:28:57,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:28:57,896 INFO L495 AbstractCegarLoop]: Abstraction has 9628 states and 13724 transitions. [2022-11-22 01:28:57,897 INFO L496 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) [2022-11-22 01:28:57,897 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 13724 transitions. [2022-11-22 01:28:57,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-22 01:28:57,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:28:57,899 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:28:57,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-22 01:28:57,900 INFO L420 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)] === [2022-11-22 01:28:57,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:28:57,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1281704062, now seen corresponding path program 1 times [2022-11-22 01:28:57,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:28:57,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823637681] [2022-11-22 01:28:57,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:28:57,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:28:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:28:58,496 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:28:58,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:28:58,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823637681] [2022-11-22 01:28:58,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823637681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:28:58,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:28:58,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:28:58,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863707418] [2022-11-22 01:28:58,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:28:58,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:28:58,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:28:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:28:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:28:58,499 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) [2022-11-22 01:29:04,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:04,518 INFO L93 Difference]: Finished difference Result 9628 states and 13724 transitions. [2022-11-22 01:29:04,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:29:04,519 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 [2022-11-22 01:29:04,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:04,542 INFO L225 Difference]: With dead ends: 9628 [2022-11-22 01:29:04,542 INFO L226 Difference]: Without dead ends: 9626 [2022-11-22 01:29:04,545 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:04,546 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 3271 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3273 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:04,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3273 Valid, 5892 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-22 01:29:04,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2022-11-22 01:29:05,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 9626. [2022-11-22 01:29:05,579 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) [2022-11-22 01:29:05,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13721 transitions. [2022-11-22 01:29:05,613 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13721 transitions. Word has length 121 [2022-11-22 01:29:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:05,614 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 13721 transitions. [2022-11-22 01:29:05,614 INFO L496 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) [2022-11-22 01:29:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13721 transitions. [2022-11-22 01:29:05,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-22 01:29:05,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:05,617 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:05,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-22 01:29:05,617 INFO L420 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)] === [2022-11-22 01:29:05,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:05,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1054983019, now seen corresponding path program 1 times [2022-11-22 01:29:05,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:05,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620156879] [2022-11-22 01:29:05,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:05,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:29:06,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:06,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620156879] [2022-11-22 01:29:06,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620156879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:06,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:06,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:29:06,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809163941] [2022-11-22 01:29:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:06,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:29:06,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:06,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:29:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:29:06,035 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) [2022-11-22 01:29:11,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:11,743 INFO L93 Difference]: Finished difference Result 9626 states and 13721 transitions. [2022-11-22 01:29:11,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:29:11,743 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 [2022-11-22 01:29:11,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:11,768 INFO L225 Difference]: With dead ends: 9626 [2022-11-22 01:29:11,768 INFO L226 Difference]: Without dead ends: 9624 [2022-11-22 01:29:11,772 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:11,772 INFO L413 NwaCegarLoop]: 2944 mSDtfsCounter, 3268 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 5888 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:11,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 5888 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-22 01:29:11,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2022-11-22 01:29:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9624. [2022-11-22 01:29:12,834 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) [2022-11-22 01:29:12,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13718 transitions. [2022-11-22 01:29:12,870 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13718 transitions. Word has length 126 [2022-11-22 01:29:12,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:12,870 INFO L495 AbstractCegarLoop]: Abstraction has 9624 states and 13718 transitions. [2022-11-22 01:29:12,871 INFO L496 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) [2022-11-22 01:29:12,871 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13718 transitions. [2022-11-22 01:29:12,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-22 01:29:12,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:12,873 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:12,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-22 01:29:12,873 INFO L420 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)] === [2022-11-22 01:29:12,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1566211141, now seen corresponding path program 1 times [2022-11-22 01:29:12,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:12,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030905698] [2022-11-22 01:29:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:12,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:13,681 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-22 01:29:13,681 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:13,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030905698] [2022-11-22 01:29:13,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030905698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:13,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:13,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:13,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926192621] [2022-11-22 01:29:13,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:13,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:13,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:13,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:13,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:13,683 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) [2022-11-22 01:29:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:23,181 INFO L93 Difference]: Finished difference Result 12778 states and 17999 transitions. [2022-11-22 01:29:23,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:29:23,182 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 [2022-11-22 01:29:23,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:23,219 INFO L225 Difference]: With dead ends: 12778 [2022-11-22 01:29:23,220 INFO L226 Difference]: Without dead ends: 12776 [2022-11-22 01:29:23,223 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:23,223 INFO L413 NwaCegarLoop]: 3461 mSDtfsCounter, 3161 mSDsluCounter, 8682 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3166 SdHoareTripleChecker+Valid, 12143 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:23,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 12143 Invalid, 1334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-22 01:29:23,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12776 states. [2022-11-22 01:29:24,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12776 to 12553. [2022-11-22 01:29:24,669 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) [2022-11-22 01:29:24,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12553 states to 12553 states and 17770 transitions. [2022-11-22 01:29:24,719 INFO L78 Accepts]: Start accepts. Automaton has 12553 states and 17770 transitions. Word has length 141 [2022-11-22 01:29:24,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:24,719 INFO L495 AbstractCegarLoop]: Abstraction has 12553 states and 17770 transitions. [2022-11-22 01:29:24,719 INFO L496 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) [2022-11-22 01:29:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 12553 states and 17770 transitions. [2022-11-22 01:29:24,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-22 01:29:24,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:24,721 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:24,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-22 01:29:24,722 INFO L420 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)] === [2022-11-22 01:29:24,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:24,722 INFO L85 PathProgramCache]: Analyzing trace with hash 850693730, now seen corresponding path program 1 times [2022-11-22 01:29:24,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:24,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100727305] [2022-11-22 01:29:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:24,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:29:25,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:25,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100727305] [2022-11-22 01:29:25,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100727305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:25,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:25,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:29:25,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201136530] [2022-11-22 01:29:25,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:25,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:29:25,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:25,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:29:25,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:29:25,096 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) [2022-11-22 01:29:30,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:30,468 INFO L93 Difference]: Finished difference Result 12553 states and 17770 transitions. [2022-11-22 01:29:30,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:29:30,469 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 [2022-11-22 01:29:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:30,500 INFO L225 Difference]: With dead ends: 12553 [2022-11-22 01:29:30,500 INFO L226 Difference]: Without dead ends: 12551 [2022-11-22 01:29:30,504 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:30,504 INFO L413 NwaCegarLoop]: 2942 mSDtfsCounter, 3265 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3267 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:30,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 5884 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-22 01:29:30,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2022-11-22 01:29:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12551. [2022-11-22 01:29:32,282 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) [2022-11-22 01:29:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12551 states to 12551 states and 17767 transitions. [2022-11-22 01:29:32,332 INFO L78 Accepts]: Start accepts. Automaton has 12551 states and 17767 transitions. Word has length 131 [2022-11-22 01:29:32,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:32,333 INFO L495 AbstractCegarLoop]: Abstraction has 12551 states and 17767 transitions. [2022-11-22 01:29:32,333 INFO L496 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) [2022-11-22 01:29:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 12551 states and 17767 transitions. [2022-11-22 01:29:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-22 01:29:32,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:32,335 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:32,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-22 01:29:32,335 INFO L420 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)] === [2022-11-22 01:29:32,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:32,335 INFO L85 PathProgramCache]: Analyzing trace with hash -281616662, now seen corresponding path program 1 times [2022-11-22 01:29:32,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:32,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321090270] [2022-11-22 01:29:32,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:32,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:32,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:32,728 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-22 01:29:32,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321090270] [2022-11-22 01:29:32,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321090270] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:32,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:32,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:29:32,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525246465] [2022-11-22 01:29:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:32,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:29:32,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:29:32,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:29:32,731 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) [2022-11-22 01:29:39,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:39,227 INFO L93 Difference]: Finished difference Result 12551 states and 17767 transitions. [2022-11-22 01:29:39,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:29:39,228 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 [2022-11-22 01:29:39,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:39,274 INFO L225 Difference]: With dead ends: 12551 [2022-11-22 01:29:39,275 INFO L226 Difference]: Without dead ends: 12058 [2022-11-22 01:29:39,290 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:39,291 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 3262 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3262 SdHoareTripleChecker+Valid, 5882 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:39,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 5882 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-22 01:29:39,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12058 states. [2022-11-22 01:29:41,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12058 to 12058. [2022-11-22 01:29:41,493 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) [2022-11-22 01:29:41,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12058 states to 12058 states and 17109 transitions. [2022-11-22 01:29:41,540 INFO L78 Accepts]: Start accepts. Automaton has 12058 states and 17109 transitions. Word has length 136 [2022-11-22 01:29:41,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:41,540 INFO L495 AbstractCegarLoop]: Abstraction has 12058 states and 17109 transitions. [2022-11-22 01:29:41,540 INFO L496 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) [2022-11-22 01:29:41,540 INFO L276 IsEmpty]: Start isEmpty. Operand 12058 states and 17109 transitions. [2022-11-22 01:29:41,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-22 01:29:41,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:41,542 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:41,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-22 01:29:41,543 INFO L420 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)] === [2022-11-22 01:29:41,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:41,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1589529324, now seen corresponding path program 1 times [2022-11-22 01:29:41,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:41,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209979724] [2022-11-22 01:29:41,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:41,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:42,210 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-22 01:29:42,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:42,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209979724] [2022-11-22 01:29:42,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209979724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:29:42,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:29:42,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:29:42,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491507511] [2022-11-22 01:29:42,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:29:42,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:29:42,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:29:42,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:29:42,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:29:42,212 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) [2022-11-22 01:29:53,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:29:53,795 INFO L93 Difference]: Finished difference Result 19403 states and 27344 transitions. [2022-11-22 01:29:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:29:53,796 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 [2022-11-22 01:29:53,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:29:53,851 INFO L225 Difference]: With dead ends: 19403 [2022-11-22 01:29:53,852 INFO L226 Difference]: Without dead ends: 19401 [2022-11-22 01:29:53,863 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:29:53,864 INFO L413 NwaCegarLoop]: 3602 mSDtfsCounter, 2818 mSDsluCounter, 9776 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 13378 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:29:53,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 13378 Invalid, 1429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-22 01:29:53,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19401 states. [2022-11-22 01:29:56,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19401 to 19317. [2022-11-22 01:29:56,894 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) [2022-11-22 01:29:56,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19317 states to 19317 states and 27257 transitions. [2022-11-22 01:29:56,982 INFO L78 Accepts]: Start accepts. Automaton has 19317 states and 27257 transitions. Word has length 160 [2022-11-22 01:29:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:29:56,983 INFO L495 AbstractCegarLoop]: Abstraction has 19317 states and 27257 transitions. [2022-11-22 01:29:56,983 INFO L496 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) [2022-11-22 01:29:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 19317 states and 27257 transitions. [2022-11-22 01:29:56,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-22 01:29:56,986 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:29:56,986 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:29:56,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-22 01:29:56,986 INFO L420 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)] === [2022-11-22 01:29:56,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:29:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1294829159, now seen corresponding path program 1 times [2022-11-22 01:29:56,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:29:56,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956402969] [2022-11-22 01:29:56,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:29:57,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:29:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2022-11-22 01:29:58,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:29:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956402969] [2022-11-22 01:29:58,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956402969] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:29:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871121709] [2022-11-22 01:29:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:29:58,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:29:58,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:29:58,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:29:58,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:30:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:00,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:30:00,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:00,162 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-22 01:30:00,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:00,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871121709] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:00,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:30:00,163 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-11-22 01:30:00,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522466042] [2022-11-22 01:30:00,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:00,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:30:00,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:00,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:30:00,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 01:30:00,165 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) [2022-11-22 01:30:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:12,703 INFO L93 Difference]: Finished difference Result 37917 states and 53647 transitions. [2022-11-22 01:30:12,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:30:12,704 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 [2022-11-22 01:30:12,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:12,800 INFO L225 Difference]: With dead ends: 37917 [2022-11-22 01:30:12,800 INFO L226 Difference]: Without dead ends: 19125 [2022-11-22 01:30:12,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:30:12,879 INFO L413 NwaCegarLoop]: 2822 mSDtfsCounter, 11 mSDsluCounter, 8354 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 11176 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:12,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11176 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-11-22 01:30:12,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19125 states. [2022-11-22 01:30:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19125 to 19121. [2022-11-22 01:30:15,554 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) [2022-11-22 01:30:15,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19121 states to 19121 states and 26979 transitions. [2022-11-22 01:30:15,913 INFO L78 Accepts]: Start accepts. Automaton has 19121 states and 26979 transitions. Word has length 182 [2022-11-22 01:30:15,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:15,913 INFO L495 AbstractCegarLoop]: Abstraction has 19121 states and 26979 transitions. [2022-11-22 01:30:15,913 INFO L496 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) [2022-11-22 01:30:15,914 INFO L276 IsEmpty]: Start isEmpty. Operand 19121 states and 26979 transitions. [2022-11-22 01:30:15,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-22 01:30:15,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:15,917 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:30:15,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 01:30:16,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2022-11-22 01:30:16,118 INFO L420 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)] === [2022-11-22 01:30:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:16,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1055274727, now seen corresponding path program 1 times [2022-11-22 01:30:16,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:16,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644909877] [2022-11-22 01:30:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:16,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-22 01:30:19,532 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:19,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644909877] [2022-11-22 01:30:19,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644909877] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:19,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078916273] [2022-11-22 01:30:19,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:19,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:19,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:19,535 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:19,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:30:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:21,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:30:21,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:21,394 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-22 01:30:21,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:21,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078916273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:21,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:30:21,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-22 01:30:21,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302944812] [2022-11-22 01:30:21,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:21,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:30:21,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:21,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:30:21,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:30:21,396 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) [2022-11-22 01:30:32,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:32,999 INFO L93 Difference]: Finished difference Result 37583 states and 53162 transitions. [2022-11-22 01:30:33,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:30:33,000 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 [2022-11-22 01:30:33,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:33,112 INFO L225 Difference]: With dead ends: 37583 [2022-11-22 01:30:33,112 INFO L226 Difference]: Without dead ends: 18989 [2022-11-22 01:30:33,205 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:30:33,209 INFO L413 NwaCegarLoop]: 2826 mSDtfsCounter, 16 mSDsluCounter, 8364 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11190 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:33,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11190 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2022-11-22 01:30:33,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2022-11-22 01:30:35,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 18985. [2022-11-22 01:30:35,895 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) [2022-11-22 01:30:35,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18985 states to 18985 states and 26773 transitions. [2022-11-22 01:30:35,980 INFO L78 Accepts]: Start accepts. Automaton has 18985 states and 26773 transitions. Word has length 183 [2022-11-22 01:30:35,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:35,980 INFO L495 AbstractCegarLoop]: Abstraction has 18985 states and 26773 transitions. [2022-11-22 01:30:35,980 INFO L496 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) [2022-11-22 01:30:35,981 INFO L276 IsEmpty]: Start isEmpty. Operand 18985 states and 26773 transitions. [2022-11-22 01:30:35,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-22 01:30:35,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:35,984 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:30:35,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 01:30:36,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:36,198 INFO L420 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)] === [2022-11-22 01:30:36,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:36,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1579636128, now seen corresponding path program 1 times [2022-11-22 01:30:36,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:36,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164619384] [2022-11-22 01:30:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:36,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:38,381 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-22 01:30:38,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:38,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164619384] [2022-11-22 01:30:38,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164619384] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:30:38,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106654568] [2022-11-22 01:30:38,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:38,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:38,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:30:38,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:30:38,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 01:30:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:40,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 3863 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:30:40,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:30:40,152 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-22 01:30:40,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:30:40,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106654568] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:40,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:30:40,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-22 01:30:40,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112976291] [2022-11-22 01:30:40,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:40,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:30:40,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:40,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:30:40,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:30:40,156 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) [2022-11-22 01:30:52,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:30:52,356 INFO L93 Difference]: Finished difference Result 37354 states and 52813 transitions. [2022-11-22 01:30:52,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:30:52,357 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 [2022-11-22 01:30:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:30:52,440 INFO L225 Difference]: With dead ends: 37354 [2022-11-22 01:30:52,440 INFO L226 Difference]: Without dead ends: 18896 [2022-11-22 01:30:52,508 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:30:52,508 INFO L413 NwaCegarLoop]: 2826 mSDtfsCounter, 16 mSDsluCounter, 8364 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11190 SdHoareTripleChecker+Invalid, 1668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:30:52,509 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11190 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-22 01:30:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18896 states. [2022-11-22 01:30:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18896 to 18892. [2022-11-22 01:30:55,519 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) [2022-11-22 01:30:55,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18892 states to 18892 states and 26630 transitions. [2022-11-22 01:30:55,602 INFO L78 Accepts]: Start accepts. Automaton has 18892 states and 26630 transitions. Word has length 184 [2022-11-22 01:30:55,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:30:55,603 INFO L495 AbstractCegarLoop]: Abstraction has 18892 states and 26630 transitions. [2022-11-22 01:30:55,603 INFO L496 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) [2022-11-22 01:30:55,603 INFO L276 IsEmpty]: Start isEmpty. Operand 18892 states and 26630 transitions. [2022-11-22 01:30:55,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-22 01:30:55,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:30:55,606 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:30:55,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:30:55,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:30:55,821 INFO L420 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)] === [2022-11-22 01:30:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:30:55,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1928577704, now seen corresponding path program 1 times [2022-11-22 01:30:55,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:30:55,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285988581] [2022-11-22 01:30:55,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:30:55,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:30:55,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:30:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-11-22 01:30:56,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:30:56,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285988581] [2022-11-22 01:30:56,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285988581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:30:56,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:30:56,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:30:56,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218780889] [2022-11-22 01:30:56,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:30:56,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:30:56,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:30:56,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:30:56,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:30:56,638 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) [2022-11-22 01:31:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:11,140 INFO L93 Difference]: Finished difference Result 32712 states and 46049 transitions. [2022-11-22 01:31:11,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:31:11,140 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 [2022-11-22 01:31:11,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:11,240 INFO L225 Difference]: With dead ends: 32712 [2022-11-22 01:31:11,240 INFO L226 Difference]: Without dead ends: 32710 [2022-11-22 01:31:11,253 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:31:11,253 INFO L413 NwaCegarLoop]: 4103 mSDtfsCounter, 2847 mSDsluCounter, 10736 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2852 SdHoareTripleChecker+Valid, 14839 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:11,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 14839 Invalid, 1662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2022-11-22 01:31:11,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32710 states. [2022-11-22 01:31:15,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32710 to 32620. [2022-11-22 01:31:16,003 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) [2022-11-22 01:31:16,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32620 states to 32620 states and 45953 transitions. [2022-11-22 01:31:16,315 INFO L78 Accepts]: Start accepts. Automaton has 32620 states and 45953 transitions. Word has length 185 [2022-11-22 01:31:16,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:16,315 INFO L495 AbstractCegarLoop]: Abstraction has 32620 states and 45953 transitions. [2022-11-22 01:31:16,315 INFO L496 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) [2022-11-22 01:31:16,315 INFO L276 IsEmpty]: Start isEmpty. Operand 32620 states and 45953 transitions. [2022-11-22 01:31:16,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-22 01:31:16,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:16,317 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:16,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-22 01:31:16,317 INFO L420 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)] === [2022-11-22 01:31:16,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:16,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1195983012, now seen corresponding path program 1 times [2022-11-22 01:31:16,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:16,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850527129] [2022-11-22 01:31:16,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:16,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:18,377 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-22 01:31:18,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:18,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850527129] [2022-11-22 01:31:18,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850527129] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:31:18,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227379138] [2022-11-22 01:31:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:18,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:31:18,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:31:18,380 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:31:18,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:31:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:19,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-22 01:31:19,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:31:20,027 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-22 01:31:20,027 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:31:20,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227379138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:20,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:31:20,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-22 01:31:20,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96312381] [2022-11-22 01:31:20,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:20,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:31:20,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:31:20,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:31:20,029 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) [2022-11-22 01:31:34,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:34,089 INFO L93 Difference]: Finished difference Result 64399 states and 90938 transitions. [2022-11-22 01:31:34,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:31:34,090 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 [2022-11-22 01:31:34,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:34,197 INFO L225 Difference]: With dead ends: 64399 [2022-11-22 01:31:34,197 INFO L226 Difference]: Without dead ends: 32300 [2022-11-22 01:31:34,309 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:31:34,309 INFO L413 NwaCegarLoop]: 2825 mSDtfsCounter, 16 mSDsluCounter, 8361 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 11186 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:34,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11186 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-22 01:31:34,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32300 states. [2022-11-22 01:31:38,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32300 to 32292. [2022-11-22 01:31:38,761 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) [2022-11-22 01:31:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32292 states to 32292 states and 45432 transitions. [2022-11-22 01:31:38,914 INFO L78 Accepts]: Start accepts. Automaton has 32292 states and 45432 transitions. Word has length 185 [2022-11-22 01:31:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:38,914 INFO L495 AbstractCegarLoop]: Abstraction has 32292 states and 45432 transitions. [2022-11-22 01:31:38,914 INFO L496 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) [2022-11-22 01:31:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 32292 states and 45432 transitions. [2022-11-22 01:31:38,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-22 01:31:38,916 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:38,916 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:38,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:31:39,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_22b32024-6e7c-421d-aec5-5741580ed4aa/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-22 01:31:39,117 INFO L420 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)] === [2022-11-22 01:31:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:39,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1352659890, now seen corresponding path program 1 times [2022-11-22 01:31:39,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:39,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866344919] [2022-11-22 01:31:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:39,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:31:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-22 01:31:39,757 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:31:39,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866344919] [2022-11-22 01:31:39,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866344919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:31:39,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:31:39,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:31:39,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538975149] [2022-11-22 01:31:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:31:39,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:31:39,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:31:39,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:31:39,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:31:39,760 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) [2022-11-22 01:31:55,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:31:55,061 INFO L93 Difference]: Finished difference Result 32372 states and 45508 transitions. [2022-11-22 01:31:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:31:55,061 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 [2022-11-22 01:31:55,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:31:55,158 INFO L225 Difference]: With dead ends: 32372 [2022-11-22 01:31:55,158 INFO L226 Difference]: Without dead ends: 32262 [2022-11-22 01:31:55,171 INFO L412 NwaCegarLoop]: 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 [2022-11-22 01:31:55,171 INFO L413 NwaCegarLoop]: 4324 mSDtfsCounter, 1833 mSDsluCounter, 11365 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 15689 SdHoareTripleChecker+Invalid, 1880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:31:55,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 15689 Invalid, 1880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-22 01:31:55,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32262 states. [2022-11-22 01:31:59,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32262 to 32213. [2022-11-22 01:31:59,549 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) [2022-11-22 01:31:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32213 states to 32213 states and 45285 transitions. [2022-11-22 01:31:59,700 INFO L78 Accepts]: Start accepts. Automaton has 32213 states and 45285 transitions. Word has length 160 [2022-11-22 01:31:59,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:31:59,700 INFO L495 AbstractCegarLoop]: Abstraction has 32213 states and 45285 transitions. [2022-11-22 01:31:59,700 INFO L496 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) [2022-11-22 01:31:59,700 INFO L276 IsEmpty]: Start isEmpty. Operand 32213 states and 45285 transitions. [2022-11-22 01:31:59,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-22 01:31:59,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:31:59,703 INFO L195 NwaCegarLoop]: 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] [2022-11-22 01:31:59,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-22 01:31:59,703 INFO L420 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)] === [2022-11-22 01:31:59,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:31:59,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1759022003, now seen corresponding path program 1 times [2022-11-22 01:31:59,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:31:59,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501219233] [2022-11-22 01:31:59,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:31:59,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:31:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:32:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-22 01:32:00,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:32:00,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501219233] [2022-11-22 01:32:00,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501219233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:32:00,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:32:00,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:32:00,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352212913] [2022-11-22 01:32:00,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:32:00,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:32:00,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:32:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:32:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:32:00,257 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)