./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/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_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 08:29:55,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:29:55,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:29:55,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:29:55,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:29:55,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:29:55,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:29:55,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:29:55,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:29:55,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:29:55,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:29:55,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:29:55,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:29:55,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:29:55,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:29:55,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:29:55,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:29:55,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:29:55,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:29:55,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:29:55,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:29:55,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:29:55,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:29:55,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:29:55,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:29:55,532 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:29:55,532 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:29:55,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:29:55,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:29:55,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:29:55,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:29:55,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:29:55,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:29:55,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:29:55,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:29:55,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:29:55,539 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:29:55,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:29:55,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:29:55,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:29:55,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:29:55,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:29:55,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:29:55,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:29:55,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:29:55,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:29:55,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:29:55,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:29:55,578 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:29:55,578 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:29:55,579 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:29:55,579 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:29:55,580 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:29:55,580 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:29:55,580 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:29:55,581 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:29:55,581 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:29:55,581 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:29:55,581 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:29:55,582 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:29:55,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:29:55,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:29:55,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:29:55,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:29:55,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:29:55,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:29:55,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:29:55,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:29:55,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:29:55,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:29:55,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:29:55,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:29:55,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:29:55,586 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:29:55,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:29:55,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:29:55,587 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:29:55,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:29:55,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:29:55,587 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:29:55,587 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_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a40e66604094f312102b838d8c965fbe1879fb2092ea49e39f812ee4cfee256 [2022-11-19 08:29:55,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:29:55,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:29:55,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:29:55,939 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:29:55,940 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:29:55,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-19 08:29:56,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/data/ae3cceec5/da2718548e6949ee8b90f889decea2d8/FLAGb0920c479 [2022-11-19 08:29:57,262 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:29:57,263 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-19 08:29:57,362 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/data/ae3cceec5/da2718548e6949ee8b90f889decea2d8/FLAGb0920c479 [2022-11-19 08:29:57,428 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/data/ae3cceec5/da2718548e6949ee8b90f889decea2d8 [2022-11-19 08:29:57,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:29:57,433 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:29:57,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:29:57,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:29:57,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:29:57,444 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:57" (1/1) ... [2022-11-19 08:29:57,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e684503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:29:57, skipping insertion in model container [2022-11-19 08:29:57,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:29:57" (1/1) ... [2022-11-19 08:29:57,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:29:57,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:30:06,046 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2022-11-19 08:30:06,050 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2022-11-19 08:30:06,051 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2022-11-19 08:30:06,051 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2022-11-19 08:30:06,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2022-11-19 08:30:06,052 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2022-11-19 08:30:06,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2022-11-19 08:30:06,053 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2022-11-19 08:30:06,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2022-11-19 08:30:06,054 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2022-11-19 08:30:06,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2022-11-19 08:30:06,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2022-11-19 08:30:06,055 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2022-11-19 08:30:06,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2022-11-19 08:30:06,056 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2022-11-19 08:30:06,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2022-11-19 08:30:06,057 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2022-11-19 08:30:06,058 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2022-11-19 08:30:06,058 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2022-11-19 08:30:06,059 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2022-11-19 08:30:06,059 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2022-11-19 08:30:06,060 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2022-11-19 08:30:06,060 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2022-11-19 08:30:06,061 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2022-11-19 08:30:06,061 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2022-11-19 08:30:06,062 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2022-11-19 08:30:06,062 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2022-11-19 08:30:06,062 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2022-11-19 08:30:06,063 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2022-11-19 08:30:06,063 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2022-11-19 08:30:06,064 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2022-11-19 08:30:06,064 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2022-11-19 08:30:06,065 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2022-11-19 08:30:06,065 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2022-11-19 08:30:06,066 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2022-11-19 08:30:06,066 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2022-11-19 08:30:06,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2022-11-19 08:30:06,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2022-11-19 08:30:06,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2022-11-19 08:30:06,068 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2022-11-19 08:30:06,068 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2022-11-19 08:30:06,069 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2022-11-19 08:30:06,069 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2022-11-19 08:30:06,070 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2022-11-19 08:30:06,070 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2022-11-19 08:30:06,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2022-11-19 08:30:06,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2022-11-19 08:30:06,071 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2022-11-19 08:30:06,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2022-11-19 08:30:06,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2022-11-19 08:30:06,073 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2022-11-19 08:30:06,073 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2022-11-19 08:30:06,074 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2022-11-19 08:30:06,074 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2022-11-19 08:30:06,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2022-11-19 08:30:06,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2022-11-19 08:30:06,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2022-11-19 08:30:06,076 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2022-11-19 08:30:06,076 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2022-11-19 08:30:06,077 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2022-11-19 08:30:06,077 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2022-11-19 08:30:06,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2022-11-19 08:30:06,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2022-11-19 08:30:06,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2022-11-19 08:30:06,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2022-11-19 08:30:06,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2022-11-19 08:30:06,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2022-11-19 08:30:06,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2022-11-19 08:30:06,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2022-11-19 08:30:06,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2022-11-19 08:30:06,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2022-11-19 08:30:06,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2022-11-19 08:30:06,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2022-11-19 08:30:06,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2022-11-19 08:30:06,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2022-11-19 08:30:06,084 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2022-11-19 08:30:06,084 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2022-11-19 08:30:06,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2022-11-19 08:30:06,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2022-11-19 08:30:06,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2022-11-19 08:30:06,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2022-11-19 08:30:06,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2022-11-19 08:30:06,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2022-11-19 08:30:06,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2022-11-19 08:30:06,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2022-11-19 08:30:06,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2022-11-19 08:30:06,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2022-11-19 08:30:06,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2022-11-19 08:30:06,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:06,180 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:30:07,065 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680431,680444] [2022-11-19 08:30:07,067 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680576,680589] [2022-11-19 08:30:07,072 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680722,680735] [2022-11-19 08:30:07,074 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[680887,680900] [2022-11-19 08:30:07,074 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681045,681058] [2022-11-19 08:30:07,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681203,681216] [2022-11-19 08:30:07,075 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681361,681374] [2022-11-19 08:30:07,076 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681521,681534] [2022-11-19 08:30:07,076 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681680,681693] [2022-11-19 08:30:07,077 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681819,681832] [2022-11-19 08:30:07,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[681961,681974] [2022-11-19 08:30:07,078 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682110,682123] [2022-11-19 08:30:07,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682249,682262] [2022-11-19 08:30:07,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682404,682417] [2022-11-19 08:30:07,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682564,682577] [2022-11-19 08:30:07,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682715,682728] [2022-11-19 08:30:07,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[682866,682879] [2022-11-19 08:30:07,081 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683018,683031] [2022-11-19 08:30:07,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683167,683180] [2022-11-19 08:30:07,082 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683315,683328] [2022-11-19 08:30:07,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683472,683485] [2022-11-19 08:30:07,083 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683621,683634] [2022-11-19 08:30:07,084 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683777,683790] [2022-11-19 08:30:07,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[683930,683943] [2022-11-19 08:30:07,085 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684076,684089] [2022-11-19 08:30:07,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684219,684232] [2022-11-19 08:30:07,086 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684371,684384] [2022-11-19 08:30:07,087 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684517,684530] [2022-11-19 08:30:07,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684662,684675] [2022-11-19 08:30:07,088 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684816,684829] [2022-11-19 08:30:07,089 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[684967,684980] [2022-11-19 08:30:07,090 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685122,685135] [2022-11-19 08:30:07,091 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685274,685287] [2022-11-19 08:30:07,092 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685429,685442] [2022-11-19 08:30:07,092 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685593,685606] [2022-11-19 08:30:07,093 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685749,685762] [2022-11-19 08:30:07,094 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[685913,685926] [2022-11-19 08:30:07,095 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686055,686068] [2022-11-19 08:30:07,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686213,686226] [2022-11-19 08:30:07,096 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686380,686393] [2022-11-19 08:30:07,097 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686539,686552] [2022-11-19 08:30:07,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686698,686711] [2022-11-19 08:30:07,098 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686847,686860] [2022-11-19 08:30:07,100 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[686994,687007] [2022-11-19 08:30:07,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687133,687146] [2022-11-19 08:30:07,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687296,687309] [2022-11-19 08:30:07,101 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687462,687475] [2022-11-19 08:30:07,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687626,687639] [2022-11-19 08:30:07,102 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687791,687804] [2022-11-19 08:30:07,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[687956,687969] [2022-11-19 08:30:07,103 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688122,688135] [2022-11-19 08:30:07,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688287,688300] [2022-11-19 08:30:07,104 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688454,688467] [2022-11-19 08:30:07,105 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688614,688627] [2022-11-19 08:30:07,107 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688776,688789] [2022-11-19 08:30:07,108 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[688935,688948] [2022-11-19 08:30:07,112 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689081,689094] [2022-11-19 08:30:07,112 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689224,689237] [2022-11-19 08:30:07,113 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689368,689381] [2022-11-19 08:30:07,113 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689511,689524] [2022-11-19 08:30:07,114 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689655,689668] [2022-11-19 08:30:07,115 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689796,689809] [2022-11-19 08:30:07,117 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[689934,689947] [2022-11-19 08:30:07,117 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690092,690105] [2022-11-19 08:30:07,118 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690251,690264] [2022-11-19 08:30:07,126 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690407,690420] [2022-11-19 08:30:07,129 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690556,690569] [2022-11-19 08:30:07,129 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690708,690721] [2022-11-19 08:30:07,130 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[690859,690872] [2022-11-19 08:30:07,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691008,691021] [2022-11-19 08:30:07,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691160,691173] [2022-11-19 08:30:07,131 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691308,691321] [2022-11-19 08:30:07,132 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691461,691474] [2022-11-19 08:30:07,133 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691612,691625] [2022-11-19 08:30:07,133 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691762,691775] [2022-11-19 08:30:07,134 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[691909,691922] [2022-11-19 08:30:07,134 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692060,692073] [2022-11-19 08:30:07,134 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692211,692224] [2022-11-19 08:30:07,136 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692359,692372] [2022-11-19 08:30:07,137 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692525,692538] [2022-11-19 08:30:07,137 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692694,692707] [2022-11-19 08:30:07,138 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[692861,692874] [2022-11-19 08:30:07,139 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693029,693042] [2022-11-19 08:30:07,139 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693179,693192] [2022-11-19 08:30:07,140 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693326,693339] [2022-11-19 08:30:07,140 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693487,693500] [2022-11-19 08:30:07,140 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693657,693670] [2022-11-19 08:30:07,141 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---net--rose--rose.ko.cil.i[693819,693832] [2022-11-19 08:30:07,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:30:07,496 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:30:07,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07 WrapperNode [2022-11-19 08:30:07,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:30:07,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:07,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:30:07,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:30:07,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:07,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,079 INFO L138 Inliner]: procedures = 963, calls = 5049, calls flagged for inlining = 494, calls inlined = 305, statements flattened = 9455 [2022-11-19 08:30:08,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:30:08,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:30:08,080 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:30:08,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:30:08,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,512 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:30:08,600 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:30:08,600 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:30:08,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:30:08,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (1/1) ... [2022-11-19 08:30:08,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:30:08,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:30:08,636 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:30:08,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:30:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_timer [2022-11-19 08:30:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_timer [2022-11-19 08:30:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-11-19 08:30:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-11-19 08:30:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-11-19 08:30:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-11-19 08:30:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-11-19 08:30:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-11-19 08:30:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_heartbeat [2022-11-19 08:30:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_heartbeat [2022-11-19 08:30:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure sock_init_data [2022-11-19 08:30:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_init_data [2022-11-19 08:30:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-19 08:30:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-19 08:30:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_135 [2022-11-19 08:30:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_135 [2022-11-19 08:30:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure proto_unregister [2022-11-19 08:30:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_unregister [2022-11-19 08:30:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 08:30:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2022-11-19 08:30:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:30:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-19 08:30:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure rose_add_loopback_node [2022-11-19 08:30:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_add_loopback_node [2022-11-19 08:30:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-11-19 08:30:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-11-19 08:30:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure sock_set_flag [2022-11-19 08:30:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_set_flag [2022-11-19 08:30:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:30:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-19 08:30:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-19 08:30:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure rose_send_frame [2022-11-19 08:30:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_send_frame [2022-11-19 08:30:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure rose_destroy_socket [2022-11-19 08:30:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_destroy_socket [2022-11-19 08:30:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure rose_write_internal [2022-11-19 08:30:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_write_internal [2022-11-19 08:30:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-11-19 08:30:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-11-19 08:30:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_loopback_node [2022-11-19 08:30:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_loopback_node [2022-11-19 08:30:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 08:30:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 08:30:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2022-11-19 08:30:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2022-11-19 08:30:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure rose_requeue_frames [2022-11-19 08:30:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_requeue_frames [2022-11-19 08:30:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure rose_rx_call_request [2022-11-19 08:30:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_rx_call_request [2022-11-19 08:30:08,689 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-19 08:30:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-19 08:30:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure rose_dev_get [2022-11-19 08:30:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_dev_get [2022-11-19 08:30:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure sock_wfree [2022-11-19 08:30:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:30:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:30:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure rose_new_lci [2022-11-19 08:30:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_new_lci [2022-11-19 08:30:08,690 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-11-19 08:30:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-11-19 08:30:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 08:30:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2022-11-19 08:30:08,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:30:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 08:30:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2022-11-19 08:30:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure rose_neigh_open [2022-11-19 08:30:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_neigh_open [2022-11-19 08:30:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:30:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:30:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure rose_validate_nr [2022-11-19 08:30:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_validate_nr [2022-11-19 08:30:08,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 08:30:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2022-11-19 08:30:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-19 08:30:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-19 08:30:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure sock_flag [2022-11-19 08:30:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_flag [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2022-11-19 08:30:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:30:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:30:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure ax2asc [2022-11-19 08:30:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ax2asc [2022-11-19 08:30:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 08:30:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t0timer [2022-11-19 08:30:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t0timer [2022-11-19 08:30:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_restart_request [2022-11-19 08:30:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_restart_request [2022-11-19 08:30:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-11-19 08:30:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-11-19 08:30:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 08:30:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 08:30:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 08:30:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 08:30:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure rose_process_rx_frame [2022-11-19 08:30:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_process_rx_frame [2022-11-19 08:30:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:30:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:30:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 08:30:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-11-19 08:30:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-11-19 08:30:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure sock_hold [2022-11-19 08:30:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_hold [2022-11-19 08:30:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-19 08:30:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put [2022-11-19 08:30:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put [2022-11-19 08:30:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:30:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:30:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head [2022-11-19 08:30:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head [2022-11-19 08:30:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure rose_clear_queues [2022-11-19 08:30:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_clear_queues [2022-11-19 08:30:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 08:30:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 08:30:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2022-11-19 08:30:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2022-11-19 08:30:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 08:30:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2022-11-19 08:30:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure rose_insert_socket [2022-11-19 08:30:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_insert_socket [2022-11-19 08:30:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure rose_parse_facilities [2022-11-19 08:30:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_parse_facilities [2022-11-19 08:30:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:30:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 08:30:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2022-11-19 08:30:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:30:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 08:30:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 08:30:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_125 [2022-11-19 08:30:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_125 [2022-11-19 08:30:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126 [2022-11-19 08:30:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126 [2022-11-19 08:30:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-19 08:30:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-19 08:30:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:30:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:30:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127___0 [2022-11-19 08:30:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127___0 [2022-11-19 08:30:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_idletimer [2022-11-19 08:30:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_idletimer [2022-11-19 08:30:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 08:30:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 08:30:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_link [2022-11-19 08:30:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_link [2022-11-19 08:30:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 08:30:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2022-11-19 08:30:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 08:30:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2022-11-19 08:30:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure rose_find_socket [2022-11-19 08:30:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_find_socket [2022-11-19 08:30:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_node [2022-11-19 08:30:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_node [2022-11-19 08:30:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-19 08:30:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-19 08:30:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:30:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:30:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:30:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_display_timer [2022-11-19 08:30:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_display_timer [2022-11-19 08:30:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_route [2022-11-19 08:30:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_route [2022-11-19 08:30:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_listen_release [2022-11-19 08:30:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_listen_release [2022-11-19 08:30:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmp [2022-11-19 08:30:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmp [2022-11-19 08:30:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_ftimer [2022-11-19 08:30:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_ftimer [2022-11-19 08:30:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure rose_del_route_by_neigh [2022-11-19 08:30:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_del_route_by_neigh [2022-11-19 08:30:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 08:30:08,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2022-11-19 08:30:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:30:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:30:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_134 [2022-11-19 08:30:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_134 [2022-11-19 08:30:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-19 08:30:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-19 08:30:08,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:30:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:30:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2022-11-19 08:30:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2022-11-19 08:30:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 08:30:08,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2022-11-19 08:30:08,713 INFO L130 BoogieDeclarations]: Found specification of procedure rose_setup [2022-11-19 08:30:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_setup [2022-11-19 08:30:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure sk_wmem_alloc_get [2022-11-19 08:30:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_wmem_alloc_get [2022-11-19 08:30:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure sk_alloc [2022-11-19 08:30:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_alloc [2022-11-19 08:30:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure ax25cmp [2022-11-19 08:30:08,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25cmp [2022-11-19 08:30:08,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:30:08,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:30:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-19 08:30:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-19 08:30:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t3timer [2022-11-19 08:30:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t3timer [2022-11-19 08:30:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-19 08:30:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-19 08:30:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:30:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:30:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2022-11-19 08:30:08,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2022-11-19 08:30:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure rose_remove_neigh [2022-11-19 08:30:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_remove_neigh [2022-11-19 08:30:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:30:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure rose_disconnect [2022-11-19 08:30:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_disconnect [2022-11-19 08:30:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 08:30:08,720 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 08:30:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2022-11-19 08:30:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2022-11-19 08:30:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 08:30:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure sk_rmem_alloc_get [2022-11-19 08:30:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_rmem_alloc_get [2022-11-19 08:30:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 08:30:08,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 08:30:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:30:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2022-11-19 08:30:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2022-11-19 08:30:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-19 08:30:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-19 08:30:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_free_lci [2022-11-19 08:30:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_free_lci [2022-11-19 08:30:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 08:30:08,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 08:30:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 08:30:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2022-11-19 08:30:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure rose2asc [2022-11-19 08:30:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rose2asc [2022-11-19 08:30:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure rose_get_neigh [2022-11-19 08:30:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_get_neigh [2022-11-19 08:30:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 08:30:08,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 08:30:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 08:30:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2022-11-19 08:30:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-11-19 08:30:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-11-19 08:30:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure proc_create [2022-11-19 08:30:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_create [2022-11-19 08:30:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kick [2022-11-19 08:30:08,724 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kick [2022-11-19 08:30:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_149 [2022-11-19 08:30:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_149 [2022-11-19 08:30:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure rose_start_t2timer [2022-11-19 08:30:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_start_t2timer [2022-11-19 08:30:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_open [2022-11-19 08:30:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_open [2022-11-19 08:30:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:30:08,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:30:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2022-11-19 08:30:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2022-11-19 08:30:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure rosecmpm [2022-11-19 08:30:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rosecmpm [2022-11-19 08:30:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure rose_enquiry_response [2022-11-19 08:30:08,726 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_enquiry_response [2022-11-19 08:30:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 08:30:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 08:30:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 08:30:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2022-11-19 08:30:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_transport_header [2022-11-19 08:30:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_transport_header [2022-11-19 08:30:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-19 08:30:08,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-19 08:30:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure rose_kill_by_neigh [2022-11-19 08:30:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_kill_by_neigh [2022-11-19 08:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-19 08:30:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-19 08:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_t0timer [2022-11-19 08:30:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_t0timer [2022-11-19 08:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 08:30:08,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:30:08,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:30:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-19 08:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-11-19 08:30:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-11-19 08:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 08:30:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 08:30:08,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_orphan [2022-11-19 08:30:08,729 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_orphan [2022-11-19 08:30:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 08:30:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2022-11-19 08:30:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:30:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-11-19 08:30:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-11-19 08:30:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 08:30:08,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2022-11-19 08:30:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_150 [2022-11-19 08:30:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_150 [2022-11-19 08:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:30:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_hash_from_sk [2022-11-19 08:30:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_hash_from_sk [2022-11-19 08:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_frame [2022-11-19 08:30:08,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_frame [2022-11-19 08:30:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 08:30:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 08:30:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure rose_stop_idletimer [2022-11-19 08:30:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_stop_idletimer [2022-11-19 08:30:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 08:30:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2022-11-19 08:30:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:30:08,732 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:30:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_127 [2022-11-19 08:30:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_127 [2022-11-19 08:30:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_128 [2022-11-19 08:30:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_128 [2022-11-19 08:30:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 08:30:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2022-11-19 08:30:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure rose_route_open [2022-11-19 08:30:08,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_route_open [2022-11-19 08:30:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure rose_nodes_open [2022-11-19 08:30:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_nodes_open [2022-11-19 08:30:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 08:30:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2022-11-19 08:30:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure rose_transmit_clear_request [2022-11-19 08:30:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_transmit_clear_request [2022-11-19 08:30:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ax25_cb_put___0 [2022-11-19 08:30:08,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ax25_cb_put___0 [2022-11-19 08:30:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_126___0 [2022-11-19 08:30:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_126___0 [2022-11-19 08:30:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:30:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:30:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 08:30:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2022-11-19 08:30:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:30:08,735 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:30:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure asc2ax [2022-11-19 08:30:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure asc2ax [2022-11-19 08:30:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 08:30:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 08:30:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-19 08:30:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-19 08:30:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:30:08,736 INFO L130 BoogieDeclarations]: Found specification of procedure rose_frames_acked [2022-11-19 08:30:08,736 INFO L138 BoogieDeclarations]: Found implementation of procedure rose_frames_acked [2022-11-19 08:30:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure net_eq [2022-11-19 08:30:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure net_eq [2022-11-19 08:30:08,737 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 08:30:08,737 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 08:30:10,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:30:10,183 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:30:10,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:31:07,124 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:31:08,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:31:08,580 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-19 08:31:08,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:08 BoogieIcfgContainer [2022-11-19 08:31:08,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:31:08,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:31:08,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:31:08,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:31:08,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:29:57" (1/3) ... [2022-11-19 08:31:08,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7da2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:08, skipping insertion in model container [2022-11-19 08:31:08,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:30:07" (2/3) ... [2022-11-19 08:31:08,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f7da2bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:31:08, skipping insertion in model container [2022-11-19 08:31:08,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:31:08" (3/3) ... [2022-11-19 08:31:08,605 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---net--rose--rose.ko.cil.i [2022-11-19 08:31:08,625 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:31:08,625 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-11-19 08:31:08,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:31:08,740 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;@3f0f2429, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:31:08,740 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-11-19 08:31:08,750 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) [2022-11-19 08:31:08,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 08:31:08,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:08,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:08,759 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)] === [2022-11-19 08:31:08,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:08,764 INFO L85 PathProgramCache]: Analyzing trace with hash -771250644, now seen corresponding path program 1 times [2022-11-19 08:31:08,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:08,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438279116] [2022-11-19 08:31:08,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:08,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:10,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:10,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:10,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438279116] [2022-11-19 08:31:10,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438279116] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:10,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:10,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 08:31:10,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790164944] [2022-11-19 08:31:10,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:10,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 08:31:10,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:10,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 08:31:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:31:10,825 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) [2022-11-19 08:31:28,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:28,563 INFO L93 Difference]: Finished difference Result 5465 states and 8125 transitions. [2022-11-19 08:31:28,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:31:28,566 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 [2022-11-19 08:31:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:28,613 INFO L225 Difference]: With dead ends: 5465 [2022-11-19 08:31:28,614 INFO L226 Difference]: Without dead ends: 3117 [2022-11-19 08:31:28,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 08:31:28,641 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 3121 mSDsluCounter, 10227 mSDsCounter, 0 mSdLazyCounter, 3195 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 13720 SdHoareTripleChecker+Invalid, 3197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:28,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 13720 Invalid, 3197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3195 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2022-11-19 08:31:28,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2022-11-19 08:31:28,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 3109. [2022-11-19 08:31:28,951 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) [2022-11-19 08:31:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3109 states to 3109 states and 4436 transitions. [2022-11-19 08:31:28,984 INFO L78 Accepts]: Start accepts. Automaton has 3109 states and 4436 transitions. Word has length 16 [2022-11-19 08:31:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:28,985 INFO L495 AbstractCegarLoop]: Abstraction has 3109 states and 4436 transitions. [2022-11-19 08:31:28,985 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) [2022-11-19 08:31:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 3109 states and 4436 transitions. [2022-11-19 08:31:28,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-19 08:31:28,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:28,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:31:28,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:31:28,989 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)] === [2022-11-19 08:31:28,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:28,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1938400162, now seen corresponding path program 1 times [2022-11-19 08:31:28,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:28,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533483572] [2022-11-19 08:31:28,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:28,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:31:29,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:29,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533483572] [2022-11-19 08:31:29,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533483572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:29,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:29,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:31:29,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476831676] [2022-11-19 08:31:29,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:29,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:31:29,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:31:29,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:31:29,427 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) [2022-11-19 08:31:32,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:32,632 INFO L93 Difference]: Finished difference Result 6206 states and 8944 transitions. [2022-11-19 08:31:32,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:31:32,633 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 [2022-11-19 08:31:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:32,658 INFO L225 Difference]: With dead ends: 6206 [2022-11-19 08:31:32,658 INFO L226 Difference]: Without dead ends: 3103 [2022-11-19 08:31:32,679 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 [2022-11-19 08:31:32,681 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, 2.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:32,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3328 Valid, 2982 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-19 08:31:32,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2022-11-19 08:31:32,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103. [2022-11-19 08:31:32,852 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) [2022-11-19 08:31:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 4427 transitions. [2022-11-19 08:31:32,882 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 4427 transitions. Word has length 19 [2022-11-19 08:31:32,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:32,882 INFO L495 AbstractCegarLoop]: Abstraction has 3103 states and 4427 transitions. [2022-11-19 08:31:32,882 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) [2022-11-19 08:31:32,883 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 4427 transitions. [2022-11-19 08:31:32,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 08:31:32,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:32,885 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] [2022-11-19 08:31:32,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:31:32,885 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)] === [2022-11-19 08:31:32,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash -2111176268, now seen corresponding path program 1 times [2022-11-19 08:31:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:32,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577721136] [2022-11-19 08:31:32,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:31:33,434 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:33,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577721136] [2022-11-19 08:31:33,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577721136] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:33,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:33,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:33,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964774035] [2022-11-19 08:31:33,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:33,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:33,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:33,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:33,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:33,436 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) [2022-11-19 08:31:38,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:38,853 INFO L93 Difference]: Finished difference Result 3103 states and 4427 transitions. [2022-11-19 08:31:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:31:38,853 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 [2022-11-19 08:31:38,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:38,874 INFO L225 Difference]: With dead ends: 3103 [2022-11-19 08:31:38,874 INFO L226 Difference]: Without dead ends: 3101 [2022-11-19 08:31:38,877 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 [2022-11-19 08:31:38,878 INFO L413 NwaCegarLoop]: 2979 mSDtfsCounter, 3321 mSDsluCounter, 2979 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s 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, 5.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:38,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3323 Valid, 5958 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-19 08:31:38,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3101 states. [2022-11-19 08:31:39,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3101 to 3101. [2022-11-19 08:31:39,063 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) [2022-11-19 08:31:39,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3101 states to 3101 states and 4425 transitions. [2022-11-19 08:31:39,082 INFO L78 Accepts]: Start accepts. Automaton has 3101 states and 4425 transitions. Word has length 38 [2022-11-19 08:31:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:39,084 INFO L495 AbstractCegarLoop]: Abstraction has 3101 states and 4425 transitions. [2022-11-19 08:31:39,084 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) [2022-11-19 08:31:39,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3101 states and 4425 transitions. [2022-11-19 08:31:39,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 08:31:39,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:39,091 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] [2022-11-19 08:31:39,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:31:39,092 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)] === [2022-11-19 08:31:39,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:39,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1953254279, now seen corresponding path program 1 times [2022-11-19 08:31:39,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:39,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875042849] [2022-11-19 08:31:39,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:39,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:39,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:39,632 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:31:39,632 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:39,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875042849] [2022-11-19 08:31:39,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875042849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:39,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:39,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:39,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98292572] [2022-11-19 08:31:39,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:39,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:39,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:39,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:39,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:39,634 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) [2022-11-19 08:31:44,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:44,781 INFO L93 Difference]: Finished difference Result 3101 states and 4425 transitions. [2022-11-19 08:31:44,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:31:44,782 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 [2022-11-19 08:31:44,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:44,801 INFO L225 Difference]: With dead ends: 3101 [2022-11-19 08:31:44,801 INFO L226 Difference]: Without dead ends: 3099 [2022-11-19 08:31:44,803 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 [2022-11-19 08:31:44,804 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 3318 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s 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, 4.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:44,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3320 Valid, 5954 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-19 08:31:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3099 states. [2022-11-19 08:31:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3099 to 3099. [2022-11-19 08:31:44,993 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) [2022-11-19 08:31:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 4423 transitions. [2022-11-19 08:31:45,011 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 4423 transitions. Word has length 43 [2022-11-19 08:31:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:45,012 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 4423 transitions. [2022-11-19 08:31:45,012 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) [2022-11-19 08:31:45,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 4423 transitions. [2022-11-19 08:31:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-19 08:31:45,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:45,018 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] [2022-11-19 08:31:45,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:31:45,018 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)] === [2022-11-19 08:31:45,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash -588406478, now seen corresponding path program 1 times [2022-11-19 08:31:45,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:45,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338309229] [2022-11-19 08:31:45,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:45,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:45,565 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:31:45,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:45,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338309229] [2022-11-19 08:31:45,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338309229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:45,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:45,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:45,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585655481] [2022-11-19 08:31:45,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:45,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:45,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:45,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:45,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:45,567 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) [2022-11-19 08:31:50,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:50,487 INFO L93 Difference]: Finished difference Result 3099 states and 4423 transitions. [2022-11-19 08:31:50,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:31:50,488 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 [2022-11-19 08:31:50,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:50,508 INFO L225 Difference]: With dead ends: 3099 [2022-11-19 08:31:50,508 INFO L226 Difference]: Without dead ends: 3097 [2022-11-19 08:31:50,511 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 [2022-11-19 08:31:50,512 INFO L413 NwaCegarLoop]: 2975 mSDtfsCounter, 3315 mSDsluCounter, 2975 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:50,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3317 Valid, 5950 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 08:31:50,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2022-11-19 08:31:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3097. [2022-11-19 08:31:50,718 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) [2022-11-19 08:31:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 4421 transitions. [2022-11-19 08:31:50,737 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 4421 transitions. Word has length 48 [2022-11-19 08:31:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:50,738 INFO L495 AbstractCegarLoop]: Abstraction has 3097 states and 4421 transitions. [2022-11-19 08:31:50,738 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) [2022-11-19 08:31:50,738 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 4421 transitions. [2022-11-19 08:31:50,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-19 08:31:50,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:50,739 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] [2022-11-19 08:31:50,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 08:31:50,741 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)] === [2022-11-19 08:31:50,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:50,741 INFO L85 PathProgramCache]: Analyzing trace with hash -589750216, now seen corresponding path program 1 times [2022-11-19 08:31:50,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:50,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815196863] [2022-11-19 08:31:50,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:50,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:50,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:51,243 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:31:51,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:51,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815196863] [2022-11-19 08:31:51,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815196863] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:51,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:51,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:51,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044286145] [2022-11-19 08:31:51,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:51,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:51,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:51,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:51,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:51,245 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) [2022-11-19 08:31:55,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:31:55,798 INFO L93 Difference]: Finished difference Result 3097 states and 4421 transitions. [2022-11-19 08:31:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:31:55,799 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 [2022-11-19 08:31:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:31:55,816 INFO L225 Difference]: With dead ends: 3097 [2022-11-19 08:31:55,816 INFO L226 Difference]: Without dead ends: 3095 [2022-11-19 08:31:55,818 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 [2022-11-19 08:31:55,818 INFO L413 NwaCegarLoop]: 2973 mSDtfsCounter, 3312 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:31:55,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3314 Valid, 5946 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-19 08:31:55,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2022-11-19 08:31:56,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3095. [2022-11-19 08:31:56,050 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) [2022-11-19 08:31:56,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3095 states to 3095 states and 4419 transitions. [2022-11-19 08:31:56,068 INFO L78 Accepts]: Start accepts. Automaton has 3095 states and 4419 transitions. Word has length 53 [2022-11-19 08:31:56,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:31:56,068 INFO L495 AbstractCegarLoop]: Abstraction has 3095 states and 4419 transitions. [2022-11-19 08:31:56,069 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) [2022-11-19 08:31:56,069 INFO L276 IsEmpty]: Start isEmpty. Operand 3095 states and 4419 transitions. [2022-11-19 08:31:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-19 08:31:56,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:31:56,072 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] [2022-11-19 08:31:56,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:31:56,072 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)] === [2022-11-19 08:31:56,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:31:56,073 INFO L85 PathProgramCache]: Analyzing trace with hash -901102862, now seen corresponding path program 1 times [2022-11-19 08:31:56,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:31:56,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055043122] [2022-11-19 08:31:56,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:31:56,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:31:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:31:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:31:56,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:31:56,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055043122] [2022-11-19 08:31:56,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055043122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:31:56,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:31:56,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:31:56,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702870918] [2022-11-19 08:31:56,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:31:56,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:31:56,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:31:56,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:31:56,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:31:56,581 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) [2022-11-19 08:32:00,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:00,821 INFO L93 Difference]: Finished difference Result 3095 states and 4419 transitions. [2022-11-19 08:32:00,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:00,822 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 [2022-11-19 08:32:00,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:00,841 INFO L225 Difference]: With dead ends: 3095 [2022-11-19 08:32:00,841 INFO L226 Difference]: Without dead ends: 3093 [2022-11-19 08:32:00,844 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 [2022-11-19 08:32:00,844 INFO L413 NwaCegarLoop]: 2971 mSDtfsCounter, 3309 mSDsluCounter, 2971 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s 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, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:00,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3311 Valid, 5942 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 08:32:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3093 states. [2022-11-19 08:32:01,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3093 to 3093. [2022-11-19 08:32:01,079 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) [2022-11-19 08:32:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3093 states to 3093 states and 4417 transitions. [2022-11-19 08:32:01,096 INFO L78 Accepts]: Start accepts. Automaton has 3093 states and 4417 transitions. Word has length 58 [2022-11-19 08:32:01,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:01,098 INFO L495 AbstractCegarLoop]: Abstraction has 3093 states and 4417 transitions. [2022-11-19 08:32:01,099 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) [2022-11-19 08:32:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 3093 states and 4417 transitions. [2022-11-19 08:32:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-11-19 08:32:01,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:01,100 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] [2022-11-19 08:32:01,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 08:32:01,101 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)] === [2022-11-19 08:32:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:01,101 INFO L85 PathProgramCache]: Analyzing trace with hash -553826378, now seen corresponding path program 1 times [2022-11-19 08:32:01,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:01,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910776256] [2022-11-19 08:32:01,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:01,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:01,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:01,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:01,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910776256] [2022-11-19 08:32:01,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910776256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:01,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:01,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:01,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406961709] [2022-11-19 08:32:01,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:01,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:01,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:01,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:01,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:01,623 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) [2022-11-19 08:32:06,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:06,625 INFO L93 Difference]: Finished difference Result 3093 states and 4417 transitions. [2022-11-19 08:32:06,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:06,626 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 [2022-11-19 08:32:06,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:06,641 INFO L225 Difference]: With dead ends: 3093 [2022-11-19 08:32:06,641 INFO L226 Difference]: Without dead ends: 3091 [2022-11-19 08:32:06,643 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 [2022-11-19 08:32:06,644 INFO L413 NwaCegarLoop]: 2969 mSDtfsCounter, 3306 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:06,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3308 Valid, 5938 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:32:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3091 states. [2022-11-19 08:32:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3091 to 3091. [2022-11-19 08:32:06,893 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) [2022-11-19 08:32:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4415 transitions. [2022-11-19 08:32:06,909 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4415 transitions. Word has length 63 [2022-11-19 08:32:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:06,910 INFO L495 AbstractCegarLoop]: Abstraction has 3091 states and 4415 transitions. [2022-11-19 08:32:06,910 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) [2022-11-19 08:32:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4415 transitions. [2022-11-19 08:32:06,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-19 08:32:06,913 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:06,913 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] [2022-11-19 08:32:06,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 08:32:06,914 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)] === [2022-11-19 08:32:06,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:06,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1468966371, now seen corresponding path program 1 times [2022-11-19 08:32:06,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:06,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113793228] [2022-11-19 08:32:06,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:06,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:07,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:07,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:07,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113793228] [2022-11-19 08:32:07,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113793228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:07,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:07,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:07,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116142640] [2022-11-19 08:32:07,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:07,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:07,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:07,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:07,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:07,398 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) [2022-11-19 08:32:12,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:12,168 INFO L93 Difference]: Finished difference Result 3091 states and 4415 transitions. [2022-11-19 08:32:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:12,169 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 [2022-11-19 08:32:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:12,186 INFO L225 Difference]: With dead ends: 3091 [2022-11-19 08:32:12,187 INFO L226 Difference]: Without dead ends: 3089 [2022-11-19 08:32:12,189 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 [2022-11-19 08:32:12,190 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 3303 mSDsluCounter, 2967 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:12,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 5934 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:32:12,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2022-11-19 08:32:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3089. [2022-11-19 08:32:12,450 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) [2022-11-19 08:32:12,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3089 states to 3089 states and 4413 transitions. [2022-11-19 08:32:12,467 INFO L78 Accepts]: Start accepts. Automaton has 3089 states and 4413 transitions. Word has length 68 [2022-11-19 08:32:12,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:12,468 INFO L495 AbstractCegarLoop]: Abstraction has 3089 states and 4413 transitions. [2022-11-19 08:32:12,468 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) [2022-11-19 08:32:12,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3089 states and 4413 transitions. [2022-11-19 08:32:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-19 08:32:12,470 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:12,471 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] [2022-11-19 08:32:12,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 08:32:12,472 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)] === [2022-11-19 08:32:12,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1766168495, now seen corresponding path program 1 times [2022-11-19 08:32:12,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:12,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126143668] [2022-11-19 08:32:12,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:12,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:13,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:13,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126143668] [2022-11-19 08:32:13,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126143668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:13,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:13,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:13,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569984292] [2022-11-19 08:32:13,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:13,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:13,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:13,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:13,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:13,071 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) [2022-11-19 08:32:17,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:17,994 INFO L93 Difference]: Finished difference Result 3089 states and 4413 transitions. [2022-11-19 08:32:17,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:17,995 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 [2022-11-19 08:32:17,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:18,012 INFO L225 Difference]: With dead ends: 3089 [2022-11-19 08:32:18,012 INFO L226 Difference]: Without dead ends: 3087 [2022-11-19 08:32:18,015 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 [2022-11-19 08:32:18,016 INFO L413 NwaCegarLoop]: 2965 mSDtfsCounter, 3304 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:18,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 5926 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:32:18,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2022-11-19 08:32:18,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3087. [2022-11-19 08:32:18,265 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) [2022-11-19 08:32:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 4411 transitions. [2022-11-19 08:32:18,282 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 4411 transitions. Word has length 73 [2022-11-19 08:32:18,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:18,283 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 4411 transitions. [2022-11-19 08:32:18,283 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) [2022-11-19 08:32:18,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 4411 transitions. [2022-11-19 08:32:18,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 08:32:18,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:18,285 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] [2022-11-19 08:32:18,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 08:32:18,285 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)] === [2022-11-19 08:32:18,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:18,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1963772519, now seen corresponding path program 1 times [2022-11-19 08:32:18,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:18,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195241470] [2022-11-19 08:32:18,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:18,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:18,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:19,034 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-19 08:32:19,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:19,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195241470] [2022-11-19 08:32:19,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195241470] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:19,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:19,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:32:19,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961548908] [2022-11-19 08:32:19,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:19,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:32:19,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:19,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:32:19,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:32:19,036 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) [2022-11-19 08:32:29,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:29,867 INFO L93 Difference]: Finished difference Result 5880 states and 8390 transitions. [2022-11-19 08:32:29,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:32:29,867 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 [2022-11-19 08:32:29,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:29,901 INFO L225 Difference]: With dead ends: 5880 [2022-11-19 08:32:29,901 INFO L226 Difference]: Without dead ends: 5878 [2022-11-19 08:32:29,905 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 [2022-11-19 08:32:29,906 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, 10.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:29,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 13668 Invalid, 1415 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1412 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2022-11-19 08:32:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2022-11-19 08:32:30,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5839. [2022-11-19 08:32:30,464 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) [2022-11-19 08:32:30,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5839 states to 5839 states and 8366 transitions. [2022-11-19 08:32:30,497 INFO L78 Accepts]: Start accepts. Automaton has 5839 states and 8366 transitions. Word has length 74 [2022-11-19 08:32:30,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:30,497 INFO L495 AbstractCegarLoop]: Abstraction has 5839 states and 8366 transitions. [2022-11-19 08:32:30,498 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) [2022-11-19 08:32:30,498 INFO L276 IsEmpty]: Start isEmpty. Operand 5839 states and 8366 transitions. [2022-11-19 08:32:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 08:32:30,499 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:30,499 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] [2022-11-19 08:32:30,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 08:32:30,500 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)] === [2022-11-19 08:32:30,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 776010418, now seen corresponding path program 1 times [2022-11-19 08:32:30,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:30,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928050678] [2022-11-19 08:32:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:30,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:31,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:31,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928050678] [2022-11-19 08:32:31,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928050678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:31,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:31,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:31,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480444743] [2022-11-19 08:32:31,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:31,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:31,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:31,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:31,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:31,042 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) [2022-11-19 08:32:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:36,310 INFO L93 Difference]: Finished difference Result 5839 states and 8366 transitions. [2022-11-19 08:32:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:36,311 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 [2022-11-19 08:32:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:36,339 INFO L225 Difference]: With dead ends: 5839 [2022-11-19 08:32:36,340 INFO L226 Difference]: Without dead ends: 5837 [2022-11-19 08:32:36,344 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 [2022-11-19 08:32:36,344 INFO L413 NwaCegarLoop]: 2963 mSDtfsCounter, 3296 mSDsluCounter, 2963 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:36,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3298 Valid, 5926 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 08:32:36,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5837 states. [2022-11-19 08:32:36,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5837 to 5837. [2022-11-19 08:32:36,817 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) [2022-11-19 08:32:36,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5837 states to 5837 states and 8363 transitions. [2022-11-19 08:32:36,851 INFO L78 Accepts]: Start accepts. Automaton has 5837 states and 8363 transitions. Word has length 75 [2022-11-19 08:32:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:36,851 INFO L495 AbstractCegarLoop]: Abstraction has 5837 states and 8363 transitions. [2022-11-19 08:32:36,852 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) [2022-11-19 08:32:36,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5837 states and 8363 transitions. [2022-11-19 08:32:36,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-19 08:32:36,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:36,854 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] [2022-11-19 08:32:36,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 08:32:36,854 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)] === [2022-11-19 08:32:36,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:36,855 INFO L85 PathProgramCache]: Analyzing trace with hash 643965176, now seen corresponding path program 1 times [2022-11-19 08:32:36,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:36,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759061603] [2022-11-19 08:32:36,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:37,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:37,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759061603] [2022-11-19 08:32:37,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759061603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:37,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:37,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:37,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929858824] [2022-11-19 08:32:37,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:37,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:37,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:37,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:37,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:37,335 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) [2022-11-19 08:32:42,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:42,567 INFO L93 Difference]: Finished difference Result 5837 states and 8363 transitions. [2022-11-19 08:32:42,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:42,568 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 [2022-11-19 08:32:42,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:42,597 INFO L225 Difference]: With dead ends: 5837 [2022-11-19 08:32:42,597 INFO L226 Difference]: Without dead ends: 5835 [2022-11-19 08:32:42,601 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 [2022-11-19 08:32:42,602 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 3295 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:42,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3297 Valid, 5922 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 08:32:42,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5835 states. [2022-11-19 08:32:43,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5835 to 5835. [2022-11-19 08:32:43,162 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) [2022-11-19 08:32:43,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5835 states to 5835 states and 8360 transitions. [2022-11-19 08:32:43,196 INFO L78 Accepts]: Start accepts. Automaton has 5835 states and 8360 transitions. Word has length 80 [2022-11-19 08:32:43,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:43,196 INFO L495 AbstractCegarLoop]: Abstraction has 5835 states and 8360 transitions. [2022-11-19 08:32:43,197 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) [2022-11-19 08:32:43,197 INFO L276 IsEmpty]: Start isEmpty. Operand 5835 states and 8360 transitions. [2022-11-19 08:32:43,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-19 08:32:43,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:43,199 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] [2022-11-19 08:32:43,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-19 08:32:43,199 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)] === [2022-11-19 08:32:43,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1189594253, now seen corresponding path program 1 times [2022-11-19 08:32:43,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:43,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877141614] [2022-11-19 08:32:43,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:43,820 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:32:43,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:43,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877141614] [2022-11-19 08:32:43,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877141614] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:43,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:43,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:43,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17212109] [2022-11-19 08:32:43,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:43,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:43,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:43,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:43,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:43,822 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) [2022-11-19 08:32:48,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:32:48,880 INFO L93 Difference]: Finished difference Result 5835 states and 8360 transitions. [2022-11-19 08:32:48,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:32:48,882 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 [2022-11-19 08:32:48,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:32:48,908 INFO L225 Difference]: With dead ends: 5835 [2022-11-19 08:32:48,908 INFO L226 Difference]: Without dead ends: 5833 [2022-11-19 08:32:48,913 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 [2022-11-19 08:32:48,913 INFO L413 NwaCegarLoop]: 2959 mSDtfsCounter, 3292 mSDsluCounter, 2959 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s 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, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:32:48,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3294 Valid, 5918 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:32:48,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5833 states. [2022-11-19 08:32:49,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5833 to 5833. [2022-11-19 08:32:49,685 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) [2022-11-19 08:32:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5833 states to 5833 states and 8357 transitions. [2022-11-19 08:32:49,716 INFO L78 Accepts]: Start accepts. Automaton has 5833 states and 8357 transitions. Word has length 85 [2022-11-19 08:32:49,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:32:49,719 INFO L495 AbstractCegarLoop]: Abstraction has 5833 states and 8357 transitions. [2022-11-19 08:32:49,719 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) [2022-11-19 08:32:49,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5833 states and 8357 transitions. [2022-11-19 08:32:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-11-19 08:32:49,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:32:49,721 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] [2022-11-19 08:32:49,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-19 08:32:49,722 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)] === [2022-11-19 08:32:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:32:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash -467527094, now seen corresponding path program 1 times [2022-11-19 08:32:49,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:32:49,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228536323] [2022-11-19 08:32:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:32:49,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:32:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:32:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-11-19 08:32:50,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:32:50,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228536323] [2022-11-19 08:32:50,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228536323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:32:50,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:32:50,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:32:50,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388035185] [2022-11-19 08:32:50,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:32:50,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:32:50,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:32:50,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:32:50,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:32:50,190 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) [2022-11-19 08:33:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:00,433 INFO L93 Difference]: Finished difference Result 11613 states and 16636 transitions. [2022-11-19 08:33:00,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:33:00,434 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 [2022-11-19 08:33:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:00,461 INFO L225 Difference]: With dead ends: 11613 [2022-11-19 08:33:00,461 INFO L226 Difference]: Without dead ends: 5898 [2022-11-19 08:33:00,488 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 [2022-11-19 08:33:00,489 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, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:00,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3384 Valid, 4355 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-19 08:33:00,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5898 states. [2022-11-19 08:33:01,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5898 to 5834. [2022-11-19 08:33:01,173 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) [2022-11-19 08:33:01,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5834 states to 5834 states and 8357 transitions. [2022-11-19 08:33:01,204 INFO L78 Accepts]: Start accepts. Automaton has 5834 states and 8357 transitions. Word has length 102 [2022-11-19 08:33:01,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:01,204 INFO L495 AbstractCegarLoop]: Abstraction has 5834 states and 8357 transitions. [2022-11-19 08:33:01,205 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) [2022-11-19 08:33:01,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5834 states and 8357 transitions. [2022-11-19 08:33:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-11-19 08:33:01,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:01,210 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] [2022-11-19 08:33:01,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-19 08:33:01,210 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)] === [2022-11-19 08:33:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:01,210 INFO L85 PathProgramCache]: Analyzing trace with hash -364812386, now seen corresponding path program 1 times [2022-11-19 08:33:01,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:01,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19569731] [2022-11-19 08:33:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:01,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:33:01,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:01,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19569731] [2022-11-19 08:33:01,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19569731] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:01,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:01,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:33:01,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273115133] [2022-11-19 08:33:01,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:01,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:33:01,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:01,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:33:01,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:33:01,638 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) [2022-11-19 08:33:06,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:06,270 INFO L93 Difference]: Finished difference Result 5834 states and 8357 transitions. [2022-11-19 08:33:06,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:33:06,271 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 [2022-11-19 08:33:06,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:06,300 INFO L225 Difference]: With dead ends: 5834 [2022-11-19 08:33:06,300 INFO L226 Difference]: Without dead ends: 5832 [2022-11-19 08:33:06,304 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 [2022-11-19 08:33:06,305 INFO L413 NwaCegarLoop]: 2956 mSDtfsCounter, 3287 mSDsluCounter, 2956 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 3.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:06,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3289 Valid, 5912 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-19 08:33:06,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5832 states. [2022-11-19 08:33:07,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5832 to 5832. [2022-11-19 08:33:07,107 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) [2022-11-19 08:33:07,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5832 states to 5832 states and 8354 transitions. [2022-11-19 08:33:07,133 INFO L78 Accepts]: Start accepts. Automaton has 5832 states and 8354 transitions. Word has length 91 [2022-11-19 08:33:07,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:07,134 INFO L495 AbstractCegarLoop]: Abstraction has 5832 states and 8354 transitions. [2022-11-19 08:33:07,134 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) [2022-11-19 08:33:07,134 INFO L276 IsEmpty]: Start isEmpty. Operand 5832 states and 8354 transitions. [2022-11-19 08:33:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 08:33:07,135 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:07,136 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] [2022-11-19 08:33:07,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-19 08:33:07,136 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)] === [2022-11-19 08:33:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1570002123, now seen corresponding path program 1 times [2022-11-19 08:33:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:07,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778637654] [2022-11-19 08:33:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:07,514 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 08:33:07,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:07,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778637654] [2022-11-19 08:33:07,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778637654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:07,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:07,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:33:07,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141406233] [2022-11-19 08:33:07,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:07,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:33:07,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:07,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:33:07,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:33:07,516 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) [2022-11-19 08:33:15,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:15,221 INFO L93 Difference]: Finished difference Result 12302 states and 17814 transitions. [2022-11-19 08:33:15,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:33:15,222 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 [2022-11-19 08:33:15,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:15,254 INFO L225 Difference]: With dead ends: 12302 [2022-11-19 08:33:15,254 INFO L226 Difference]: Without dead ends: 6672 [2022-11-19 08:33:15,279 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 [2022-11-19 08:33:15,279 INFO L413 NwaCegarLoop]: 3595 mSDtfsCounter, 313 mSDsluCounter, 6511 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s 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, 6.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:15,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [548 Valid, 10106 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-11-19 08:33:15,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6672 states. [2022-11-19 08:33:16,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6672 to 5891. [2022-11-19 08:33:16,068 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) [2022-11-19 08:33:16,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5891 states to 5891 states and 8446 transitions. [2022-11-19 08:33:16,102 INFO L78 Accepts]: Start accepts. Automaton has 5891 states and 8446 transitions. Word has length 100 [2022-11-19 08:33:16,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:16,102 INFO L495 AbstractCegarLoop]: Abstraction has 5891 states and 8446 transitions. [2022-11-19 08:33:16,103 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) [2022-11-19 08:33:16,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5891 states and 8446 transitions. [2022-11-19 08:33:16,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-19 08:33:16,109 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:16,109 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] [2022-11-19 08:33:16,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-19 08:33:16,109 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)] === [2022-11-19 08:33:16,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:16,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1639665723, now seen corresponding path program 1 times [2022-11-19 08:33:16,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:16,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405876450] [2022-11-19 08:33:16,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:16,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:16,364 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 08:33:16,364 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:16,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405876450] [2022-11-19 08:33:16,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405876450] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:16,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:16,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:33:16,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743441082] [2022-11-19 08:33:16,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:16,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:33:16,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:16,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:33:16,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:33:16,367 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) [2022-11-19 08:33:21,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:21,364 INFO L93 Difference]: Finished difference Result 11736 states and 16829 transitions. [2022-11-19 08:33:21,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:33:21,365 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 [2022-11-19 08:33:21,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:21,394 INFO L225 Difference]: With dead ends: 11736 [2022-11-19 08:33:21,394 INFO L226 Difference]: Without dead ends: 5892 [2022-11-19 08:33:21,420 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 [2022-11-19 08:33:21,421 INFO L413 NwaCegarLoop]: 2957 mSDtfsCounter, 1 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:21,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5906 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 719 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:33:21,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2022-11-19 08:33:22,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5892. [2022-11-19 08:33:22,299 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) [2022-11-19 08:33:22,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5892 states to 5892 states and 8447 transitions. [2022-11-19 08:33:22,329 INFO L78 Accepts]: Start accepts. Automaton has 5892 states and 8447 transitions. Word has length 94 [2022-11-19 08:33:22,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:22,330 INFO L495 AbstractCegarLoop]: Abstraction has 5892 states and 8447 transitions. [2022-11-19 08:33:22,330 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) [2022-11-19 08:33:22,330 INFO L276 IsEmpty]: Start isEmpty. Operand 5892 states and 8447 transitions. [2022-11-19 08:33:22,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-19 08:33:22,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:22,332 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] [2022-11-19 08:33:22,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-19 08:33:22,333 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)] === [2022-11-19 08:33:22,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:22,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1319883828, now seen corresponding path program 1 times [2022-11-19 08:33:22,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:22,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692912552] [2022-11-19 08:33:22,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:22,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:22,764 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:33:22,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:22,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692912552] [2022-11-19 08:33:22,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692912552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:22,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:22,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:33:22,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680109776] [2022-11-19 08:33:22,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:22,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:33:22,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:22,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:33:22,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:33:22,766 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) [2022-11-19 08:33:29,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:29,991 INFO L93 Difference]: Finished difference Result 9803 states and 13915 transitions. [2022-11-19 08:33:29,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:33:29,991 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 [2022-11-19 08:33:29,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:30,022 INFO L225 Difference]: With dead ends: 9803 [2022-11-19 08:33:30,022 INFO L226 Difference]: Without dead ends: 9801 [2022-11-19 08:33:30,026 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 [2022-11-19 08:33:30,026 INFO L413 NwaCegarLoop]: 3444 mSDtfsCounter, 3092 mSDsluCounter, 5413 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s 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, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:30,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 8857 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 08:33:30,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9801 states. [2022-11-19 08:33:31,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9801 to 9624. [2022-11-19 08:33:31,147 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) [2022-11-19 08:33:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13723 transitions. [2022-11-19 08:33:31,180 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13723 transitions. Word has length 96 [2022-11-19 08:33:31,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:31,181 INFO L495 AbstractCegarLoop]: Abstraction has 9624 states and 13723 transitions. [2022-11-19 08:33:31,181 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) [2022-11-19 08:33:31,181 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13723 transitions. [2022-11-19 08:33:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 08:33:31,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:31,184 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] [2022-11-19 08:33:31,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-19 08:33:31,184 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)] === [2022-11-19 08:33:31,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:31,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1834286729, now seen corresponding path program 1 times [2022-11-19 08:33:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:31,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140875010] [2022-11-19 08:33:31,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:31,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:33:31,625 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:31,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140875010] [2022-11-19 08:33:31,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140875010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:31,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:31,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:33:31,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381490810] [2022-11-19 08:33:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:31,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:33:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:31,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:33:31,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:33:31,627 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) [2022-11-19 08:33:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:36,916 INFO L93 Difference]: Finished difference Result 9624 states and 13723 transitions. [2022-11-19 08:33:36,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:33:36,916 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 [2022-11-19 08:33:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:36,955 INFO L225 Difference]: With dead ends: 9624 [2022-11-19 08:33:36,955 INFO L226 Difference]: Without dead ends: 9622 [2022-11-19 08:33:36,962 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 [2022-11-19 08:33:36,963 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 3283 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:36,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3285 Valid, 5908 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:33:36,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9622 states. [2022-11-19 08:33:38,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9622 to 9622. [2022-11-19 08:33:38,035 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) [2022-11-19 08:33:38,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9622 states to 9622 states and 13720 transitions. [2022-11-19 08:33:38,069 INFO L78 Accepts]: Start accepts. Automaton has 9622 states and 13720 transitions. Word has length 101 [2022-11-19 08:33:38,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:38,069 INFO L495 AbstractCegarLoop]: Abstraction has 9622 states and 13720 transitions. [2022-11-19 08:33:38,070 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) [2022-11-19 08:33:38,070 INFO L276 IsEmpty]: Start isEmpty. Operand 9622 states and 13720 transitions. [2022-11-19 08:33:38,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-11-19 08:33:38,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:38,072 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] [2022-11-19 08:33:38,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-19 08:33:38,072 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)] === [2022-11-19 08:33:38,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:38,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1370606608, now seen corresponding path program 1 times [2022-11-19 08:33:38,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:38,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701475480] [2022-11-19 08:33:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:38,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 08:33:38,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:38,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701475480] [2022-11-19 08:33:38,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701475480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:38,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:38,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:33:38,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819530256] [2022-11-19 08:33:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:38,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:33:38,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:38,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:33:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:38,461 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) [2022-11-19 08:33:50,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:33:50,081 INFO L93 Difference]: Finished difference Result 19219 states and 27414 transitions. [2022-11-19 08:33:50,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:33:50,082 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 [2022-11-19 08:33:50,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:33:50,120 INFO L225 Difference]: With dead ends: 19219 [2022-11-19 08:33:50,121 INFO L226 Difference]: Without dead ends: 9644 [2022-11-19 08:33:50,152 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 [2022-11-19 08:33:50,153 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 9 mSDsluCounter, 8882 mSDsCounter, 0 mSdLazyCounter, 1453 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s 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, 10.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:33:50,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11849 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1453 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-11-19 08:33:50,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9644 states. [2022-11-19 08:33:51,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9644 to 9626. [2022-11-19 08:33:51,205 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) [2022-11-19 08:33:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13727 transitions. [2022-11-19 08:33:51,254 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13727 transitions. Word has length 103 [2022-11-19 08:33:51,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:33:51,256 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 13727 transitions. [2022-11-19 08:33:51,256 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) [2022-11-19 08:33:51,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13727 transitions. [2022-11-19 08:33:51,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-19 08:33:51,264 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:33:51,264 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] [2022-11-19 08:33:51,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-19 08:33:51,264 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)] === [2022-11-19 08:33:51,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:33:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1260032000, now seen corresponding path program 1 times [2022-11-19 08:33:51,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:33:51,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220763674] [2022-11-19 08:33:51,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:33:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:33:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:33:51,840 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-19 08:33:51,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:33:51,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220763674] [2022-11-19 08:33:51,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220763674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:33:51,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:33:51,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:33:51,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366611824] [2022-11-19 08:33:51,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:33:51,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:33:51,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:33:51,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:33:51,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:33:51,842 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) [2022-11-19 08:34:05,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:05,392 INFO L93 Difference]: Finished difference Result 9768 states and 13863 transitions. [2022-11-19 08:34:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:34:05,393 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 [2022-11-19 08:34:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:05,435 INFO L225 Difference]: With dead ends: 9768 [2022-11-19 08:34:05,435 INFO L226 Difference]: Without dead ends: 9766 [2022-11-19 08:34:05,442 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 [2022-11-19 08:34:05,443 INFO L413 NwaCegarLoop]: 5490 mSDtfsCounter, 2936 mSDsluCounter, 13868 mSDsCounter, 0 mSdLazyCounter, 2301 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s 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, 12.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:05,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 19358 Invalid, 2302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2301 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-11-19 08:34:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2022-11-19 08:34:06,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9634. [2022-11-19 08:34:06,586 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) [2022-11-19 08:34:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9634 states to 9634 states and 13733 transitions. [2022-11-19 08:34:06,625 INFO L78 Accepts]: Start accepts. Automaton has 9634 states and 13733 transitions. Word has length 104 [2022-11-19 08:34:06,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:06,626 INFO L495 AbstractCegarLoop]: Abstraction has 9634 states and 13733 transitions. [2022-11-19 08:34:06,626 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) [2022-11-19 08:34:06,626 INFO L276 IsEmpty]: Start isEmpty. Operand 9634 states and 13733 transitions. [2022-11-19 08:34:06,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-11-19 08:34:06,629 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:06,629 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] [2022-11-19 08:34:06,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-19 08:34:06,630 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)] === [2022-11-19 08:34:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:06,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1913163673, now seen corresponding path program 1 times [2022-11-19 08:34:06,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:06,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674170812] [2022-11-19 08:34:06,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:06,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:07,095 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:07,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:07,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674170812] [2022-11-19 08:34:07,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674170812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:07,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:07,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:07,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677301889] [2022-11-19 08:34:07,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:07,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:07,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:07,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:07,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:07,097 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) [2022-11-19 08:34:12,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:12,895 INFO L93 Difference]: Finished difference Result 9634 states and 13733 transitions. [2022-11-19 08:34:12,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:34:12,896 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 [2022-11-19 08:34:12,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:12,926 INFO L225 Difference]: With dead ends: 9634 [2022-11-19 08:34:12,926 INFO L226 Difference]: Without dead ends: 9632 [2022-11-19 08:34:12,931 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 [2022-11-19 08:34:12,932 INFO L413 NwaCegarLoop]: 2952 mSDtfsCounter, 3280 mSDsluCounter, 2952 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:12,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3282 Valid, 5904 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 08:34:12,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9632 states. [2022-11-19 08:34:14,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9632 to 9632. [2022-11-19 08:34:14,416 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) [2022-11-19 08:34:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9632 states to 9632 states and 13730 transitions. [2022-11-19 08:34:14,451 INFO L78 Accepts]: Start accepts. Automaton has 9632 states and 13730 transitions. Word has length 106 [2022-11-19 08:34:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:14,452 INFO L495 AbstractCegarLoop]: Abstraction has 9632 states and 13730 transitions. [2022-11-19 08:34:14,452 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) [2022-11-19 08:34:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 9632 states and 13730 transitions. [2022-11-19 08:34:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-19 08:34:14,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:14,454 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] [2022-11-19 08:34:14,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-19 08:34:14,454 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)] === [2022-11-19 08:34:14,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:14,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1262380349, now seen corresponding path program 1 times [2022-11-19 08:34:14,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:14,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317101238] [2022-11-19 08:34:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:14,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:15,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:15,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317101238] [2022-11-19 08:34:15,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317101238] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:15,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:15,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:15,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492252048] [2022-11-19 08:34:15,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:15,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:15,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:15,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:15,282 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) [2022-11-19 08:34:21,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:21,215 INFO L93 Difference]: Finished difference Result 9632 states and 13730 transitions. [2022-11-19 08:34:21,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:34:21,215 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 [2022-11-19 08:34:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:21,244 INFO L225 Difference]: With dead ends: 9632 [2022-11-19 08:34:21,244 INFO L226 Difference]: Without dead ends: 9630 [2022-11-19 08:34:21,247 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 [2022-11-19 08:34:21,247 INFO L413 NwaCegarLoop]: 2950 mSDtfsCounter, 3277 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:21,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 5900 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-11-19 08:34:21,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9630 states. [2022-11-19 08:34:22,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9630 to 9630. [2022-11-19 08:34:22,383 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) [2022-11-19 08:34:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9630 states to 9630 states and 13727 transitions. [2022-11-19 08:34:22,416 INFO L78 Accepts]: Start accepts. Automaton has 9630 states and 13727 transitions. Word has length 111 [2022-11-19 08:34:22,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:22,416 INFO L495 AbstractCegarLoop]: Abstraction has 9630 states and 13727 transitions. [2022-11-19 08:34:22,416 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) [2022-11-19 08:34:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 9630 states and 13727 transitions. [2022-11-19 08:34:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-19 08:34:22,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:22,419 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] [2022-11-19 08:34:22,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-19 08:34:22,420 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)] === [2022-11-19 08:34:22,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash 970334689, now seen corresponding path program 1 times [2022-11-19 08:34:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:22,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052942775] [2022-11-19 08:34:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:22,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:22,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:22,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052942775] [2022-11-19 08:34:22,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052942775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:22,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:22,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:22,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052777729] [2022-11-19 08:34:22,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:22,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:22,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:22,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:22,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:22,843 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) [2022-11-19 08:34:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:28,493 INFO L93 Difference]: Finished difference Result 9630 states and 13727 transitions. [2022-11-19 08:34:28,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:34:28,493 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 [2022-11-19 08:34:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:28,517 INFO L225 Difference]: With dead ends: 9630 [2022-11-19 08:34:28,517 INFO L226 Difference]: Without dead ends: 9628 [2022-11-19 08:34:28,520 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 [2022-11-19 08:34:28,521 INFO L413 NwaCegarLoop]: 2948 mSDtfsCounter, 3274 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:28,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3276 Valid, 5896 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-19 08:34:28,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9628 states. [2022-11-19 08:34:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9628 to 9628. [2022-11-19 08:34:29,789 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) [2022-11-19 08:34:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9628 states to 9628 states and 13724 transitions. [2022-11-19 08:34:29,823 INFO L78 Accepts]: Start accepts. Automaton has 9628 states and 13724 transitions. Word has length 116 [2022-11-19 08:34:29,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:29,824 INFO L495 AbstractCegarLoop]: Abstraction has 9628 states and 13724 transitions. [2022-11-19 08:34:29,824 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) [2022-11-19 08:34:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand 9628 states and 13724 transitions. [2022-11-19 08:34:29,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-19 08:34:29,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:29,827 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] [2022-11-19 08:34:29,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-19 08:34:29,827 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)] === [2022-11-19 08:34:29,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1281704062, now seen corresponding path program 1 times [2022-11-19 08:34:29,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:29,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459151369] [2022-11-19 08:34:29,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:29,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:30,247 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:30,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:30,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459151369] [2022-11-19 08:34:30,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459151369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:30,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:30,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:30,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442136977] [2022-11-19 08:34:30,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:30,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:30,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:30,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:30,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:30,249 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) [2022-11-19 08:34:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:35,883 INFO L93 Difference]: Finished difference Result 9628 states and 13724 transitions. [2022-11-19 08:34:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:34:35,883 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 [2022-11-19 08:34:35,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:35,914 INFO L225 Difference]: With dead ends: 9628 [2022-11-19 08:34:35,914 INFO L226 Difference]: Without dead ends: 9626 [2022-11-19 08:34:35,919 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 [2022-11-19 08:34:35,920 INFO L413 NwaCegarLoop]: 2946 mSDtfsCounter, 3271 mSDsluCounter, 2946 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s 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, 4.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:35,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3273 Valid, 5892 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-19 08:34:35,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9626 states. [2022-11-19 08:34:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9626 to 9626. [2022-11-19 08:34:37,010 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) [2022-11-19 08:34:37,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9626 states to 9626 states and 13721 transitions. [2022-11-19 08:34:37,047 INFO L78 Accepts]: Start accepts. Automaton has 9626 states and 13721 transitions. Word has length 121 [2022-11-19 08:34:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:37,048 INFO L495 AbstractCegarLoop]: Abstraction has 9626 states and 13721 transitions. [2022-11-19 08:34:37,048 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) [2022-11-19 08:34:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9626 states and 13721 transitions. [2022-11-19 08:34:37,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-11-19 08:34:37,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:37,052 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] [2022-11-19 08:34:37,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-19 08:34:37,052 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)] === [2022-11-19 08:34:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:37,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1054983019, now seen corresponding path program 1 times [2022-11-19 08:34:37,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:37,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336823494] [2022-11-19 08:34:37,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:37,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:37,475 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:37,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:37,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336823494] [2022-11-19 08:34:37,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336823494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:37,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:37,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:37,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615376905] [2022-11-19 08:34:37,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:37,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:37,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:37,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:37,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:37,477 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) [2022-11-19 08:34:43,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:43,204 INFO L93 Difference]: Finished difference Result 9626 states and 13721 transitions. [2022-11-19 08:34:43,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:34:43,205 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 [2022-11-19 08:34:43,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:43,236 INFO L225 Difference]: With dead ends: 9626 [2022-11-19 08:34:43,236 INFO L226 Difference]: Without dead ends: 9624 [2022-11-19 08:34:43,242 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 [2022-11-19 08:34:43,242 INFO L413 NwaCegarLoop]: 2944 mSDtfsCounter, 3268 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:43,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 5888 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:34:43,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2022-11-19 08:34:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9624. [2022-11-19 08:34:44,609 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) [2022-11-19 08:34:44,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9624 states to 9624 states and 13718 transitions. [2022-11-19 08:34:44,648 INFO L78 Accepts]: Start accepts. Automaton has 9624 states and 13718 transitions. Word has length 126 [2022-11-19 08:34:44,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:44,649 INFO L495 AbstractCegarLoop]: Abstraction has 9624 states and 13718 transitions. [2022-11-19 08:34:44,649 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) [2022-11-19 08:34:44,649 INFO L276 IsEmpty]: Start isEmpty. Operand 9624 states and 13718 transitions. [2022-11-19 08:34:44,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-11-19 08:34:44,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:44,653 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] [2022-11-19 08:34:44,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-19 08:34:44,653 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)] === [2022-11-19 08:34:44,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:44,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1566211141, now seen corresponding path program 1 times [2022-11-19 08:34:44,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:44,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905292392] [2022-11-19 08:34:44,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 08:34:45,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:45,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905292392] [2022-11-19 08:34:45,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905292392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:45,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:45,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:34:45,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572406637] [2022-11-19 08:34:45,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:45,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:34:45,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:45,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:34:45,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:34:45,411 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) [2022-11-19 08:34:47,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:34:56,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:34:56,608 INFO L93 Difference]: Finished difference Result 12778 states and 17999 transitions. [2022-11-19 08:34:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:34:56,609 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 [2022-11-19 08:34:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:34:56,648 INFO L225 Difference]: With dead ends: 12778 [2022-11-19 08:34:56,648 INFO L226 Difference]: Without dead ends: 12776 [2022-11-19 08:34:56,652 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 [2022-11-19 08:34:56,653 INFO L413 NwaCegarLoop]: 3461 mSDtfsCounter, 3161 mSDsluCounter, 8682 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s 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, 9.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:34:56,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3166 Valid, 12143 Invalid, 1334 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-11-19 08:34:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12776 states. [2022-11-19 08:34:58,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12776 to 12553. [2022-11-19 08:34:58,330 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) [2022-11-19 08:34:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12553 states to 12553 states and 17770 transitions. [2022-11-19 08:34:58,380 INFO L78 Accepts]: Start accepts. Automaton has 12553 states and 17770 transitions. Word has length 141 [2022-11-19 08:34:58,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:34:58,380 INFO L495 AbstractCegarLoop]: Abstraction has 12553 states and 17770 transitions. [2022-11-19 08:34:58,380 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) [2022-11-19 08:34:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 12553 states and 17770 transitions. [2022-11-19 08:34:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-19 08:34:58,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:34:58,384 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] [2022-11-19 08:34:58,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-19 08:34:58,384 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)] === [2022-11-19 08:34:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:34:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash 850693730, now seen corresponding path program 1 times [2022-11-19 08:34:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:34:58,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190917745] [2022-11-19 08:34:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:34:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:34:58,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:34:58,807 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:34:58,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:34:58,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190917745] [2022-11-19 08:34:58,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190917745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:34:58,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:34:58,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:34:58,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320380442] [2022-11-19 08:34:58,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:34:58,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:34:58,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:34:58,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:34:58,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:34:58,809 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) [2022-11-19 08:35:05,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:05,141 INFO L93 Difference]: Finished difference Result 12553 states and 17770 transitions. [2022-11-19 08:35:05,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:35:05,142 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 [2022-11-19 08:35:05,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:05,175 INFO L225 Difference]: With dead ends: 12553 [2022-11-19 08:35:05,175 INFO L226 Difference]: Without dead ends: 12551 [2022-11-19 08:35:05,179 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 [2022-11-19 08:35:05,187 INFO L413 NwaCegarLoop]: 2942 mSDtfsCounter, 3265 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s 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, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:05,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3267 Valid, 5884 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 08:35:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12551 states. [2022-11-19 08:35:06,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12551 to 12551. [2022-11-19 08:35:06,981 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) [2022-11-19 08:35:07,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12551 states to 12551 states and 17767 transitions. [2022-11-19 08:35:07,032 INFO L78 Accepts]: Start accepts. Automaton has 12551 states and 17767 transitions. Word has length 131 [2022-11-19 08:35:07,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:07,033 INFO L495 AbstractCegarLoop]: Abstraction has 12551 states and 17767 transitions. [2022-11-19 08:35:07,033 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) [2022-11-19 08:35:07,033 INFO L276 IsEmpty]: Start isEmpty. Operand 12551 states and 17767 transitions. [2022-11-19 08:35:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-19 08:35:07,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:07,036 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] [2022-11-19 08:35:07,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-19 08:35:07,037 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)] === [2022-11-19 08:35:07,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:07,037 INFO L85 PathProgramCache]: Analyzing trace with hash -281616662, now seen corresponding path program 1 times [2022-11-19 08:35:07,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:07,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724462735] [2022-11-19 08:35:07,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:07,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:07,474 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-19 08:35:07,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:07,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724462735] [2022-11-19 08:35:07,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724462735] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:07,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:07,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:35:07,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159790447] [2022-11-19 08:35:07,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:07,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:35:07,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:07,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:35:07,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:35:07,476 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) [2022-11-19 08:35:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:13,803 INFO L93 Difference]: Finished difference Result 12551 states and 17767 transitions. [2022-11-19 08:35:13,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:35:13,803 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 [2022-11-19 08:35:13,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:13,841 INFO L225 Difference]: With dead ends: 12551 [2022-11-19 08:35:13,841 INFO L226 Difference]: Without dead ends: 12058 [2022-11-19 08:35:13,852 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 [2022-11-19 08:35:13,853 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 3262 mSDsluCounter, 2941 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s 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, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:13,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3262 Valid, 5882 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 713 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 08:35:13,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12058 states. [2022-11-19 08:35:16,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12058 to 12058. [2022-11-19 08:35:16,119 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) [2022-11-19 08:35:16,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12058 states to 12058 states and 17109 transitions. [2022-11-19 08:35:16,169 INFO L78 Accepts]: Start accepts. Automaton has 12058 states and 17109 transitions. Word has length 136 [2022-11-19 08:35:16,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:16,169 INFO L495 AbstractCegarLoop]: Abstraction has 12058 states and 17109 transitions. [2022-11-19 08:35:16,170 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) [2022-11-19 08:35:16,170 INFO L276 IsEmpty]: Start isEmpty. Operand 12058 states and 17109 transitions. [2022-11-19 08:35:16,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-19 08:35:16,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:16,174 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] [2022-11-19 08:35:16,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-19 08:35:16,174 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)] === [2022-11-19 08:35:16,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:16,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1589529324, now seen corresponding path program 1 times [2022-11-19 08:35:16,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:16,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211139996] [2022-11-19 08:35:16,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:16,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:16,859 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-19 08:35:16,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:16,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211139996] [2022-11-19 08:35:16,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211139996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:16,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:35:16,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:35:16,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086957957] [2022-11-19 08:35:16,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:16,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:35:16,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:16,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:35:16,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:35:16,865 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) [2022-11-19 08:35:28,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:28,208 INFO L93 Difference]: Finished difference Result 19403 states and 27344 transitions. [2022-11-19 08:35:28,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:35:28,209 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 [2022-11-19 08:35:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:28,269 INFO L225 Difference]: With dead ends: 19403 [2022-11-19 08:35:28,269 INFO L226 Difference]: Without dead ends: 19401 [2022-11-19 08:35:28,280 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 [2022-11-19 08:35:28,280 INFO L413 NwaCegarLoop]: 3602 mSDtfsCounter, 2818 mSDsluCounter, 9776 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s 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, 7.9s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:28,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 13378 Invalid, 1429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-19 08:35:28,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19401 states. [2022-11-19 08:35:31,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19401 to 19317. [2022-11-19 08:35:31,402 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) [2022-11-19 08:35:31,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19317 states to 19317 states and 27257 transitions. [2022-11-19 08:35:31,482 INFO L78 Accepts]: Start accepts. Automaton has 19317 states and 27257 transitions. Word has length 160 [2022-11-19 08:35:31,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:31,483 INFO L495 AbstractCegarLoop]: Abstraction has 19317 states and 27257 transitions. [2022-11-19 08:35:31,484 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) [2022-11-19 08:35:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 19317 states and 27257 transitions. [2022-11-19 08:35:31,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-19 08:35:31,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:31,490 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] [2022-11-19 08:35:31,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-19 08:35:31,490 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)] === [2022-11-19 08:35:31,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1294829159, now seen corresponding path program 1 times [2022-11-19 08:35:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:31,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464067319] [2022-11-19 08:35:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:31,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:31,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:32,860 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 32 proven. 24 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2022-11-19 08:35:32,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464067319] [2022-11-19 08:35:32,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464067319] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:35:32,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750880692] [2022-11-19 08:35:32,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:32,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:35:32,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:35:32,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:35:32,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:35:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:34,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 3861 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:35:34,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:35:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-19 08:35:34,623 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:35:34,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750880692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:34,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:35:34,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2022-11-19 08:35:34,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543884519] [2022-11-19 08:35:34,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:34,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:35:34,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:34,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:35:34,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-19 08:35:34,626 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) [2022-11-19 08:35:47,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:35:47,062 INFO L93 Difference]: Finished difference Result 37917 states and 53647 transitions. [2022-11-19 08:35:47,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:35:47,063 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 [2022-11-19 08:35:47,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:35:47,166 INFO L225 Difference]: With dead ends: 37917 [2022-11-19 08:35:47,166 INFO L226 Difference]: Without dead ends: 19125 [2022-11-19 08:35:47,250 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 [2022-11-19 08:35:47,251 INFO L413 NwaCegarLoop]: 2822 mSDtfsCounter, 11 mSDsluCounter, 8354 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s 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, 9.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:35:47,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 11176 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-19 08:35:47,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19125 states. [2022-11-19 08:35:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19125 to 19121. [2022-11-19 08:35:50,745 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) [2022-11-19 08:35:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19121 states to 19121 states and 26979 transitions. [2022-11-19 08:35:50,830 INFO L78 Accepts]: Start accepts. Automaton has 19121 states and 26979 transitions. Word has length 182 [2022-11-19 08:35:50,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:35:50,831 INFO L495 AbstractCegarLoop]: Abstraction has 19121 states and 26979 transitions. [2022-11-19 08:35:50,831 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) [2022-11-19 08:35:50,831 INFO L276 IsEmpty]: Start isEmpty. Operand 19121 states and 26979 transitions. [2022-11-19 08:35:50,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-19 08:35:50,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:35:50,833 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] [2022-11-19 08:35:50,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:35:51,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:35:51,034 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)] === [2022-11-19 08:35:51,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:35:51,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1055274727, now seen corresponding path program 1 times [2022-11-19 08:35:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:35:51,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986225851] [2022-11-19 08:35:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:51,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:35:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-19 08:35:53,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:35:53,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986225851] [2022-11-19 08:35:53,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986225851] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:35:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885944938] [2022-11-19 08:35:53,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:35:53,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:35:53,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:35:53,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:35:53,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:35:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:35:55,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3862 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:35:55,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:35:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-19 08:35:55,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:35:55,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885944938] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:35:55,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:35:55,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-19 08:35:55,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757650512] [2022-11-19 08:35:55,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:35:55,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:35:55,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:35:55,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:35:55,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:35:55,719 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) [2022-11-19 08:36:08,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:08,898 INFO L93 Difference]: Finished difference Result 37583 states and 53162 transitions. [2022-11-19 08:36:08,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:36:08,899 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 [2022-11-19 08:36:08,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:08,952 INFO L225 Difference]: With dead ends: 37583 [2022-11-19 08:36:08,953 INFO L226 Difference]: Without dead ends: 18989 [2022-11-19 08:36:09,009 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 [2022-11-19 08:36:09,009 INFO L413 NwaCegarLoop]: 2826 mSDtfsCounter, 16 mSDsluCounter, 8364 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s 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, 10.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:09,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11190 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-11-19 08:36:09,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18989 states. [2022-11-19 08:36:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18989 to 18985. [2022-11-19 08:36:11,736 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) [2022-11-19 08:36:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18985 states to 18985 states and 26773 transitions. [2022-11-19 08:36:11,825 INFO L78 Accepts]: Start accepts. Automaton has 18985 states and 26773 transitions. Word has length 183 [2022-11-19 08:36:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:11,825 INFO L495 AbstractCegarLoop]: Abstraction has 18985 states and 26773 transitions. [2022-11-19 08:36:11,825 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) [2022-11-19 08:36:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 18985 states and 26773 transitions. [2022-11-19 08:36:11,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-19 08:36:11,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:11,829 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] [2022-11-19 08:36:11,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:36:12,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2022-11-19 08:36:12,043 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)] === [2022-11-19 08:36:12,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:12,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1579636128, now seen corresponding path program 1 times [2022-11-19 08:36:12,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:12,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493954628] [2022-11-19 08:36:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:12,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:12,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:14,216 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-19 08:36:14,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:14,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493954628] [2022-11-19 08:36:14,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493954628] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:36:14,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [384507033] [2022-11-19 08:36:14,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:14,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:36:14,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:14,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:36:14,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:36:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:15,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 3863 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:36:15,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:36:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-19 08:36:15,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:36:15,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [384507033] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:15,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:36:15,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-19 08:36:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226833547] [2022-11-19 08:36:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:15,919 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:36:15,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:15,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:36:15,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:36:15,920 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) [2022-11-19 08:36:29,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:29,464 INFO L93 Difference]: Finished difference Result 37354 states and 52813 transitions. [2022-11-19 08:36:29,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:36:29,464 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 [2022-11-19 08:36:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:29,528 INFO L225 Difference]: With dead ends: 37354 [2022-11-19 08:36:29,528 INFO L226 Difference]: Without dead ends: 18896 [2022-11-19 08:36:29,586 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 [2022-11-19 08:36:29,586 INFO L413 NwaCegarLoop]: 2826 mSDtfsCounter, 16 mSDsluCounter, 8364 mSDsCounter, 0 mSdLazyCounter, 1666 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s 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, 10.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:29,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11190 Invalid, 1668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1666 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-11-19 08:36:29,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18896 states. [2022-11-19 08:36:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18896 to 18892. [2022-11-19 08:36:32,440 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) [2022-11-19 08:36:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18892 states to 18892 states and 26630 transitions. [2022-11-19 08:36:32,520 INFO L78 Accepts]: Start accepts. Automaton has 18892 states and 26630 transitions. Word has length 184 [2022-11-19 08:36:32,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:32,521 INFO L495 AbstractCegarLoop]: Abstraction has 18892 states and 26630 transitions. [2022-11-19 08:36:32,521 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) [2022-11-19 08:36:32,521 INFO L276 IsEmpty]: Start isEmpty. Operand 18892 states and 26630 transitions. [2022-11-19 08:36:32,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-19 08:36:32,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:32,525 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] [2022-11-19 08:36:32,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-19 08:36:32,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-11-19 08:36:32,739 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)] === [2022-11-19 08:36:32,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:32,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1928577704, now seen corresponding path program 1 times [2022-11-19 08:36:32,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:32,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104819256] [2022-11-19 08:36:32,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:32,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:33,512 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2022-11-19 08:36:33,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:33,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104819256] [2022-11-19 08:36:33,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104819256] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:33,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:33,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:36:33,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9883905] [2022-11-19 08:36:33,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:33,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:36:33,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:33,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:36:33,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:36:33,514 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) [2022-11-19 08:36:49,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:49,190 INFO L93 Difference]: Finished difference Result 32712 states and 46049 transitions. [2022-11-19 08:36:49,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:36:49,191 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 [2022-11-19 08:36:49,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:49,284 INFO L225 Difference]: With dead ends: 32712 [2022-11-19 08:36:49,284 INFO L226 Difference]: Without dead ends: 32710 [2022-11-19 08:36:49,294 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 [2022-11-19 08:36:49,295 INFO L413 NwaCegarLoop]: 4103 mSDtfsCounter, 2847 mSDsluCounter, 10736 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s 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, 10.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:49,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2852 Valid, 14839 Invalid, 1662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2022-11-19 08:36:49,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32710 states. [2022-11-19 08:36:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32710 to 32620. [2022-11-19 08:36:54,433 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) [2022-11-19 08:36:54,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32620 states to 32620 states and 45953 transitions. [2022-11-19 08:36:54,604 INFO L78 Accepts]: Start accepts. Automaton has 32620 states and 45953 transitions. Word has length 185 [2022-11-19 08:36:54,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:54,604 INFO L495 AbstractCegarLoop]: Abstraction has 32620 states and 45953 transitions. [2022-11-19 08:36:54,605 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) [2022-11-19 08:36:54,605 INFO L276 IsEmpty]: Start isEmpty. Operand 32620 states and 45953 transitions. [2022-11-19 08:36:54,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-19 08:36:54,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:54,608 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] [2022-11-19 08:36:54,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-19 08:36:54,609 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)] === [2022-11-19 08:36:54,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:54,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1195983012, now seen corresponding path program 1 times [2022-11-19 08:36:54,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:54,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055692025] [2022-11-19 08:36:54,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:54,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 46 proven. 14 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-11-19 08:36:56,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:56,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055692025] [2022-11-19 08:36:56,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055692025] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:36:56,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658478792] [2022-11-19 08:36:56,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:56,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:36:56,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:56,599 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:36:56,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:36:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:58,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 3864 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-19 08:36:58,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:36:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2022-11-19 08:36:58,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:36:58,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658478792] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:58,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:36:58,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 10 [2022-11-19 08:36:58,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424153770] [2022-11-19 08:36:58,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:58,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:36:58,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:58,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:36:58,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-19 08:36:58,563 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) [2022-11-19 08:37:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:13,467 INFO L93 Difference]: Finished difference Result 64399 states and 90938 transitions. [2022-11-19 08:37:13,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:37:13,467 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 [2022-11-19 08:37:13,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:13,570 INFO L225 Difference]: With dead ends: 64399 [2022-11-19 08:37:13,570 INFO L226 Difference]: Without dead ends: 32300 [2022-11-19 08:37:13,663 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 [2022-11-19 08:37:13,664 INFO L413 NwaCegarLoop]: 2825 mSDtfsCounter, 16 mSDsluCounter, 8361 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s 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, 9.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:13,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 11186 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-19 08:37:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32300 states. [2022-11-19 08:37:18,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32300 to 32292. [2022-11-19 08:37:18,713 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) [2022-11-19 08:37:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32292 states to 32292 states and 45432 transitions. [2022-11-19 08:37:18,997 INFO L78 Accepts]: Start accepts. Automaton has 32292 states and 45432 transitions. Word has length 185 [2022-11-19 08:37:18,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:18,997 INFO L495 AbstractCegarLoop]: Abstraction has 32292 states and 45432 transitions. [2022-11-19 08:37:18,997 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) [2022-11-19 08:37:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 32292 states and 45432 transitions. [2022-11-19 08:37:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-19 08:37:18,999 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:18,999 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] [2022-11-19 08:37:19,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:37:19,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8ac1014f-30a6-49e3-ad0a-d935c9a0bcd3/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2022-11-19 08:37:19,200 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)] === [2022-11-19 08:37:19,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:19,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1352659890, now seen corresponding path program 1 times [2022-11-19 08:37:19,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:19,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348698223] [2022-11-19 08:37:19,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:19,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:19,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2022-11-19 08:37:19,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:19,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348698223] [2022-11-19 08:37:19,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348698223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:19,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:19,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:37:19,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539053087] [2022-11-19 08:37:19,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:19,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:37:19,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:19,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:37:19,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:37:19,678 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) [2022-11-19 08:37:35,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:35,544 INFO L93 Difference]: Finished difference Result 32372 states and 45508 transitions. [2022-11-19 08:37:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 08:37:35,544 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 [2022-11-19 08:37:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:35,628 INFO L225 Difference]: With dead ends: 32372 [2022-11-19 08:37:35,628 INFO L226 Difference]: Without dead ends: 32262 [2022-11-19 08:37:35,639 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 [2022-11-19 08:37:35,639 INFO L413 NwaCegarLoop]: 4324 mSDtfsCounter, 1833 mSDsluCounter, 11365 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s 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, 10.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:35,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 15689 Invalid, 1880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2022-11-19 08:37:35,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32262 states. [2022-11-19 08:37:40,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32262 to 32213. [2022-11-19 08:37:40,616 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) [2022-11-19 08:37:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32213 states to 32213 states and 45285 transitions. [2022-11-19 08:37:40,769 INFO L78 Accepts]: Start accepts. Automaton has 32213 states and 45285 transitions. Word has length 160 [2022-11-19 08:37:40,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:40,769 INFO L495 AbstractCegarLoop]: Abstraction has 32213 states and 45285 transitions. [2022-11-19 08:37:40,769 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) [2022-11-19 08:37:40,769 INFO L276 IsEmpty]: Start isEmpty. Operand 32213 states and 45285 transitions. [2022-11-19 08:37:40,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-19 08:37:40,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:40,772 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] [2022-11-19 08:37:40,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-19 08:37:40,772 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)] === [2022-11-19 08:37:40,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:40,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1759022003, now seen corresponding path program 1 times [2022-11-19 08:37:40,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:40,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249830223] [2022-11-19 08:37:40,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:41,390 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-19 08:37:41,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:41,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249830223] [2022-11-19 08:37:41,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249830223] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:41,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:41,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 08:37:41,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557339673] [2022-11-19 08:37:41,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:41,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:37:41,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:41,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:37:41,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:37:41,392 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) [2022-11-19 08:37:44,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []