./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P --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 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:16:14,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:16:14,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:16:14,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:16:14,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:16:14,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:16:14,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:16:14,447 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:16:14,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:16:14,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:16:14,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:16:14,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:16:14,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:16:14,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:16:14,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:16:14,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:16:14,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:16:14,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:16:14,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:16:14,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:16:14,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:16:14,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:16:14,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:16:14,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:16:14,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:16:14,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:16:14,499 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:16:14,500 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:16:14,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:16:14,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:16:14,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:16:14,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:16:14,506 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:16:14,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:16:14,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:16:14,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:16:14,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:16:14,510 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:16:14,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:16:14,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:16:14,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:16:14,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:16:14,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:16:14,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:16:14,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:16:14,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:16:14,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:16:14,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:16:14,558 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:16:14,558 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:16:14,558 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:16:14,558 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:16:14,559 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:16:14,559 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:16:14,559 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:16:14,559 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:16:14,560 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:16:14,560 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:16:14,560 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:16:14,561 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:16:14,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:16:14,562 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:16:14,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:16:14,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:16:14,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:16:14,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:16:14,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:16:14,563 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:16:14,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:16:14,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:16:14,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:16:14,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:14,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:16:14,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:16:14,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:16:14,565 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:16:14,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:16:14,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:16:14,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:16:14,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:16:14,566 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68426913596b871b4c11813b726bd276e51998a12b1bbf8670be5ac2879b4991 [2021-11-21 00:16:14,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:16:14,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:16:14,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:16:14,836 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:16:14,837 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:16:14,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-21 00:16:14,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/data/6b73fc8d6/5fad63aaa4cd474e9c355f9b63aa53e2/FLAG35d43b0c2 [2021-11-21 00:16:15,781 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:16:15,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-21 00:16:15,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/data/6b73fc8d6/5fad63aaa4cd474e9c355f9b63aa53e2/FLAG35d43b0c2 [2021-11-21 00:16:16,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/data/6b73fc8d6/5fad63aaa4cd474e9c355f9b63aa53e2 [2021-11-21 00:16:16,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:16:16,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:16:16,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:16,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:16:16,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:16:16,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:16" (1/1) ... [2021-11-21 00:16:16,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@451fc473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:16, skipping insertion in model container [2021-11-21 00:16:16,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:16:16" (1/1) ... [2021-11-21 00:16:16,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:16:16,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:16:20,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2021-11-21 00:16:20,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2021-11-21 00:16:20,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2021-11-21 00:16:20,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2021-11-21 00:16:20,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2021-11-21 00:16:20,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2021-11-21 00:16:20,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2021-11-21 00:16:20,306 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2021-11-21 00:16:20,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2021-11-21 00:16:20,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2021-11-21 00:16:20,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2021-11-21 00:16:20,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2021-11-21 00:16:20,308 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2021-11-21 00:16:20,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2021-11-21 00:16:20,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2021-11-21 00:16:20,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2021-11-21 00:16:20,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2021-11-21 00:16:20,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2021-11-21 00:16:20,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2021-11-21 00:16:20,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2021-11-21 00:16:20,311 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2021-11-21 00:16:20,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2021-11-21 00:16:20,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2021-11-21 00:16:20,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2021-11-21 00:16:20,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2021-11-21 00:16:20,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2021-11-21 00:16:20,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2021-11-21 00:16:20,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2021-11-21 00:16:20,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2021-11-21 00:16:20,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2021-11-21 00:16:20,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2021-11-21 00:16:20,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2021-11-21 00:16:20,316 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2021-11-21 00:16:20,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2021-11-21 00:16:20,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2021-11-21 00:16:20,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2021-11-21 00:16:20,318 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2021-11-21 00:16:20,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2021-11-21 00:16:20,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2021-11-21 00:16:20,319 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2021-11-21 00:16:20,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2021-11-21 00:16:20,320 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2021-11-21 00:16:20,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2021-11-21 00:16:20,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2021-11-21 00:16:20,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2021-11-21 00:16:20,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2021-11-21 00:16:20,322 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2021-11-21 00:16:20,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2021-11-21 00:16:20,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2021-11-21 00:16:20,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2021-11-21 00:16:20,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2021-11-21 00:16:20,324 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2021-11-21 00:16:20,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2021-11-21 00:16:20,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2021-11-21 00:16:20,325 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2021-11-21 00:16:20,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2021-11-21 00:16:20,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2021-11-21 00:16:20,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2021-11-21 00:16:20,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2021-11-21 00:16:20,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2021-11-21 00:16:20,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2021-11-21 00:16:20,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2021-11-21 00:16:20,328 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2021-11-21 00:16:20,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2021-11-21 00:16:20,329 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2021-11-21 00:16:20,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2021-11-21 00:16:20,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2021-11-21 00:16:20,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2021-11-21 00:16:20,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2021-11-21 00:16:20,331 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2021-11-21 00:16:20,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2021-11-21 00:16:20,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2021-11-21 00:16:20,332 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2021-11-21 00:16:20,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2021-11-21 00:16:20,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2021-11-21 00:16:20,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2021-11-21 00:16:20,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2021-11-21 00:16:20,334 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2021-11-21 00:16:20,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2021-11-21 00:16:20,335 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2021-11-21 00:16:20,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2021-11-21 00:16:20,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2021-11-21 00:16:20,336 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2021-11-21 00:16:20,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2021-11-21 00:16:20,337 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2021-11-21 00:16:20,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2021-11-21 00:16:20,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2021-11-21 00:16:20,338 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2021-11-21 00:16:20,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:20,410 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:16:20,867 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377771,377784] [2021-11-21 00:16:20,869 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[377916,377929] [2021-11-21 00:16:20,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378062,378075] [2021-11-21 00:16:20,875 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378227,378240] [2021-11-21 00:16:20,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378385,378398] [2021-11-21 00:16:20,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378543,378556] [2021-11-21 00:16:20,876 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378701,378714] [2021-11-21 00:16:20,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[378861,378874] [2021-11-21 00:16:20,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379020,379033] [2021-11-21 00:16:20,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379159,379172] [2021-11-21 00:16:20,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379301,379314] [2021-11-21 00:16:20,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379450,379463] [2021-11-21 00:16:20,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379589,379602] [2021-11-21 00:16:20,879 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379744,379757] [2021-11-21 00:16:20,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[379904,379917] [2021-11-21 00:16:20,880 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380055,380068] [2021-11-21 00:16:20,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380206,380219] [2021-11-21 00:16:20,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380358,380371] [2021-11-21 00:16:20,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380507,380520] [2021-11-21 00:16:20,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380655,380668] [2021-11-21 00:16:20,882 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380812,380825] [2021-11-21 00:16:20,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[380961,380974] [2021-11-21 00:16:20,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381117,381130] [2021-11-21 00:16:20,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381270,381283] [2021-11-21 00:16:20,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381416,381429] [2021-11-21 00:16:20,885 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381559,381572] [2021-11-21 00:16:20,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381711,381724] [2021-11-21 00:16:20,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[381857,381870] [2021-11-21 00:16:20,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382002,382015] [2021-11-21 00:16:20,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382156,382169] [2021-11-21 00:16:20,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382307,382320] [2021-11-21 00:16:20,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382462,382475] [2021-11-21 00:16:20,889 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382614,382627] [2021-11-21 00:16:20,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382769,382782] [2021-11-21 00:16:20,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[382933,382946] [2021-11-21 00:16:20,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383089,383102] [2021-11-21 00:16:20,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383253,383266] [2021-11-21 00:16:20,893 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383395,383408] [2021-11-21 00:16:20,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383553,383566] [2021-11-21 00:16:20,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383720,383733] [2021-11-21 00:16:20,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[383879,383892] [2021-11-21 00:16:20,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384038,384051] [2021-11-21 00:16:20,896 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384187,384200] [2021-11-21 00:16:20,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384334,384347] [2021-11-21 00:16:20,897 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384473,384486] [2021-11-21 00:16:20,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384636,384649] [2021-11-21 00:16:20,898 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384802,384815] [2021-11-21 00:16:20,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[384966,384979] [2021-11-21 00:16:20,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385131,385144] [2021-11-21 00:16:20,900 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385296,385309] [2021-11-21 00:16:20,904 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385462,385475] [2021-11-21 00:16:20,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385627,385640] [2021-11-21 00:16:20,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385794,385807] [2021-11-21 00:16:20,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[385954,385967] [2021-11-21 00:16:20,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386116,386129] [2021-11-21 00:16:20,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386275,386288] [2021-11-21 00:16:20,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386421,386434] [2021-11-21 00:16:20,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386564,386577] [2021-11-21 00:16:20,907 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386708,386721] [2021-11-21 00:16:20,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386851,386864] [2021-11-21 00:16:20,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[386995,387008] [2021-11-21 00:16:20,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387136,387149] [2021-11-21 00:16:20,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387274,387287] [2021-11-21 00:16:20,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387432,387445] [2021-11-21 00:16:20,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387591,387604] [2021-11-21 00:16:20,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387747,387760] [2021-11-21 00:16:20,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[387896,387909] [2021-11-21 00:16:20,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388048,388061] [2021-11-21 00:16:20,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388199,388212] [2021-11-21 00:16:20,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388348,388361] [2021-11-21 00:16:20,911 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388500,388513] [2021-11-21 00:16:20,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388648,388661] [2021-11-21 00:16:20,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388801,388814] [2021-11-21 00:16:20,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[388952,388965] [2021-11-21 00:16:20,912 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389102,389115] [2021-11-21 00:16:20,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389249,389262] [2021-11-21 00:16:20,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389400,389413] [2021-11-21 00:16:20,913 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389551,389564] [2021-11-21 00:16:20,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389699,389712] [2021-11-21 00:16:20,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[389865,389878] [2021-11-21 00:16:20,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390034,390047] [2021-11-21 00:16:20,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390201,390214] [2021-11-21 00:16:20,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390369,390382] [2021-11-21 00:16:20,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390519,390532] [2021-11-21 00:16:20,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390666,390679] [2021-11-21 00:16:20,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390827,390840] [2021-11-21 00:16:20,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[390997,391010] [2021-11-21 00:16:20,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i[391159,391172] [2021-11-21 00:16:20,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:16:21,208 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:16:21,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21 WrapperNode [2021-11-21 00:16:21,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:16:21,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:21,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:16:21,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:16:21,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,535 INFO L137 Inliner]: procedures = 642, calls = 3004, calls flagged for inlining = 308, calls inlined = 202, statements flattened = 4626 [2021-11-21 00:16:21,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:16:21,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:16:21,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:16:21,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:16:21,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,746 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:16:21,822 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:16:21,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:16:21,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:16:21,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (1/1) ... [2021-11-21 00:16:21,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:16:21,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:16:21,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:16:21,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:16:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_prepare [2021-11-21 00:16:21,956 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_prepare [2021-11-21 00:16:21,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 00:16:21,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-21 00:16:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:16:21,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:16:21,957 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writeb [2021-11-21 00:16:21,958 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writeb [2021-11-21 00:16:21,958 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-21 00:16:21,958 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-21 00:16:21,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:16:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:16:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure doc_writew [2021-11-21 00:16:21,960 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_writew [2021-11-21 00:16:21,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 00:16:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-21 00:16:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_ecc_init [2021-11-21 00:16:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_ecc_init [2021-11-21 00:16:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-21 00:16:21,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-21 00:16:21,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2021-11-21 00:16:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_docg3_cascade [2021-11-21 00:16:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 00:16:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-21 00:16:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_pm_ops_instance_6 [2021-11-21 00:16:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_pm_ops_instance_6 [2021-11-21 00:16:21,962 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_reliable_mode [2021-11-21 00:16:21,962 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_reliable_mode [2021-11-21 00:16:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:16:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:16:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_data_area [2021-11-21 00:16:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_data_area [2021-11-21 00:16:21,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:16:21,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:16:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-21 00:16:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-21 00:16:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:16:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure doc_is_ready [2021-11-21 00:16:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_is_ready [2021-11-21 00:16:21,964 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readw [2021-11-21 00:16:21,964 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readw [2021-11-21 00:16:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_release [2021-11-21 00:16:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_release [2021-11-21 00:16:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-21 00:16:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-21 00:16:21,965 INFO L130 BoogieDeclarations]: Found specification of procedure doc_register_readb [2021-11-21 00:16:21,965 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_register_readb [2021-11-21 00:16:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_resume [2021-11-21 00:16:21,966 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_resume [2021-11-21 00:16:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:16:21,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-21 00:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-21 00:16:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:16:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 00:16:21,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-21 00:16:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:16:21,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 00:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-21 00:16:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readw [2021-11-21 00:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readw [2021-11-21 00:16:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure doc_release_device [2021-11-21 00:16:21,968 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_release_device [2021-11-21 00:16:21,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 00:16:21,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-21 00:16:21,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:16:21,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:16:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure doc_readb [2021-11-21 00:16:21,972 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_readb [2021-11-21 00:16:21,972 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-11-21 00:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-11-21 00:16:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure trace_define_field [2021-11-21 00:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_define_field [2021-11-21 00:16:21,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 00:16:21,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-21 00:16:21,978 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_device_id [2021-11-21 00:16:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_device_id [2021-11-21 00:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 00:16:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-21 00:16:21,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_check_return_value_probe [2021-11-21 00:16:21,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_check_return_value_probe [2021-11-21 00:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2021-11-21 00:16:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2021-11-21 00:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-21 00:16:21,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_check_return_value_probe [2021-11-21 00:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:16:21,980 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:16:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure doc_delay [2021-11-21 00:16:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_delay [2021-11-21 00:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:16:21,981 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:16:21,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:16:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_notrace [2021-11-21 00:16:21,982 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_notrace [2021-11-21 00:16:21,982 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_getbytes [2021-11-21 00:16:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_getbytes [2021-11-21 00:16:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure doc_set_asic_mode [2021-11-21 00:16:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_set_asic_mode [2021-11-21 00:16:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_sequence [2021-11-21 00:16:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_sequence [2021-11-21 00:16:21,983 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2021-11-21 00:16:21,983 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2021-11-21 00:16:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 00:16:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-21 00:16:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_suspend [2021-11-21 00:16:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_suspend [2021-11-21 00:16:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:16:21,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:16:21,984 INFO L130 BoogieDeclarations]: Found specification of procedure docg3_probe [2021-11-21 00:16:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure docg3_probe [2021-11-21 00:16:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:16:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:16:21,985 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-21 00:16:21,985 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-21 00:16:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 00:16:21,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 00:16:21,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-21 00:16:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-21 00:16:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_sched_held [2021-11-21 00:16:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_sched_held [2021-11-21 00:16:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 00:16:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-21 00:16:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:16:21,987 INFO L130 BoogieDeclarations]: Found specification of procedure doc_page_finish [2021-11-21 00:16:21,987 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_page_finish [2021-11-21 00:16:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 00:16:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-21 00:16:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:16:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure doc_reset_seq [2021-11-21 00:16:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_reset_seq [2021-11-21 00:16:21,988 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_command [2021-11-21 00:16:21,988 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_command [2021-11-21 00:16:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure doc_read_page_finish [2021-11-21 00:16:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_read_page_finish [2021-11-21 00:16:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock_sched_notrace [2021-11-21 00:16:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock_sched_notrace [2021-11-21 00:16:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 00:16:21,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-11-21 00:16:21,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:16:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 00:16:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 00:16:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-21 00:16:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-21 00:16:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 00:16:21,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-21 00:16:21,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2021-11-21 00:16:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_docg3_cascade [2021-11-21 00:16:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:16:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:16:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:16:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:16:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 00:16:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-21 00:16:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 00:16:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-21 00:16:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_dev2docg3 [2021-11-21 00:16:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_dev2docg3 [2021-11-21 00:16:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 00:16:21,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-21 00:16:21,992 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2021-11-21 00:16:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2021-11-21 00:16:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 00:16:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-21 00:16:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:16:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:16:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 00:16:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-21 00:16:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2021-11-21 00:16:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2021-11-21 00:16:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:16:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 00:16:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-21 00:16:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-21 00:16:21,994 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2021-11-21 00:16:21,994 INFO L130 BoogieDeclarations]: Found specification of procedure doc_flash_address [2021-11-21 00:16:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_flash_address [2021-11-21 00:16:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:16:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:16:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure trace_docg3_io [2021-11-21 00:16:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_docg3_io [2021-11-21 00:16:21,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 00:16:21,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-21 00:16:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-21 00:16:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-21 00:16:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure doc_wait_ready [2021-11-21 00:16:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_wait_ready [2021-11-21 00:16:21,996 INFO L130 BoogieDeclarations]: Found specification of procedure free_bch [2021-11-21 00:16:21,996 INFO L138 BoogieDeclarations]: Found implementation of procedure free_bch [2021-11-21 00:16:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:16:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:16:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 00:16:22,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-21 00:16:22,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:16:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure doc_setup_addr_sector [2021-11-21 00:16:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure doc_setup_addr_sector [2021-11-21 00:16:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-21 00:16:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-21 00:16:22,747 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:16:22,754 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:16:23,611 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:16:34,172 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:16:34,769 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:16:34,769 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 00:16:34,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:34 BoogieIcfgContainer [2021-11-21 00:16:34,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:16:34,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:16:34,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:16:34,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:16:34,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:16:16" (1/3) ... [2021-11-21 00:16:34,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58e833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:34, skipping insertion in model container [2021-11-21 00:16:34,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:16:21" (2/3) ... [2021-11-21 00:16:34,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b58e833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:16:34, skipping insertion in model container [2021-11-21 00:16:34,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:16:34" (3/3) ... [2021-11-21 00:16:34,788 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---drivers--mtd--devices--docg3.ko.cil.i [2021-11-21 00:16:34,799 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:16:34,799 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-21 00:16:34,860 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:16:34,865 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:16:34,866 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-21 00:16:34,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 1292 states, 708 states have (on average 1.3163841807909604) internal successors, (932), 780 states have internal predecessors, (932), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 442 states have call predecessors, (452), 452 states have call successors, (452) [2021-11-21 00:16:34,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 00:16:34,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:34,944 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:34,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:34,954 INFO L85 PathProgramCache]: Analyzing trace with hash 695989456, now seen corresponding path program 1 times [2021-11-21 00:16:34,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:34,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547856563] [2021-11-21 00:16:34,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:34,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:35,647 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:35,647 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:35,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547856563] [2021-11-21 00:16:35,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547856563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:35,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:35,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:35,650 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234999464] [2021-11-21 00:16:35,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:35,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:35,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:35,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:35,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:35,698 INFO L87 Difference]: Start difference. First operand has 1292 states, 708 states have (on average 1.3163841807909604) internal successors, (932), 780 states have internal predecessors, (932), 463 states have call successors, (463), 94 states have call predecessors, (463), 93 states have return successors, (452), 442 states have call predecessors, (452), 452 states have call successors, (452) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:16:39,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:39,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:39,839 INFO L93 Difference]: Finished difference Result 2802 states and 4076 transitions. [2021-11-21 00:16:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:39,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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 36 [2021-11-21 00:16:39,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:39,866 INFO L225 Difference]: With dead ends: 2802 [2021-11-21 00:16:39,866 INFO L226 Difference]: Without dead ends: 1518 [2021-11-21 00:16:39,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:39,883 INFO L933 BasicCegarLoop]: 1655 mSDtfsCounter, 1537 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1544 SdHoareTripleChecker+Valid, 3826 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:39,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1544 Valid, 3826 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 524 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:16:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2021-11-21 00:16:40,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1509. [2021-11-21 00:16:40,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 842 states have (on average 1.2719714964370545) internal successors, (1071), 914 states have internal predecessors, (1071), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:40,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2107 transitions. [2021-11-21 00:16:40,188 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2107 transitions. Word has length 36 [2021-11-21 00:16:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:40,189 INFO L470 AbstractCegarLoop]: Abstraction has 1509 states and 2107 transitions. [2021-11-21 00:16:40,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-21 00:16:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2107 transitions. [2021-11-21 00:16:40,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:16:40,192 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:40,192 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:40,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:16:40,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:40,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:40,202 INFO L85 PathProgramCache]: Analyzing trace with hash 308771682, now seen corresponding path program 1 times [2021-11-21 00:16:40,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:40,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897436898] [2021-11-21 00:16:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:40,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:40,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:40,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897436898] [2021-11-21 00:16:40,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897436898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:40,474 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:40,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:40,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858810864] [2021-11-21 00:16:40,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:40,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:40,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:40,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:40,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:40,477 INFO L87 Difference]: Start difference. First operand 1509 states and 2107 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 00:16:43,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:43,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:43,741 INFO L93 Difference]: Finished difference Result 1518 states and 2118 transitions. [2021-11-21 00:16:43,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:43,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 41 [2021-11-21 00:16:43,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:43,755 INFO L225 Difference]: With dead ends: 1518 [2021-11-21 00:16:43,755 INFO L226 Difference]: Without dead ends: 1516 [2021-11-21 00:16:43,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:43,758 INFO L933 BasicCegarLoop]: 1625 mSDtfsCounter, 1505 mSDsluCounter, 2436 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:43,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1512 Valid, 3764 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 00:16:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2021-11-21 00:16:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1507. [2021-11-21 00:16:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 841 states have (on average 1.2711058263971462) internal successors, (1069), 912 states have internal predecessors, (1069), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:43,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2105 transitions. [2021-11-21 00:16:43,865 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2105 transitions. Word has length 41 [2021-11-21 00:16:43,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:43,865 INFO L470 AbstractCegarLoop]: Abstraction has 1507 states and 2105 transitions. [2021-11-21 00:16:43,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-21 00:16:43,866 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2105 transitions. [2021-11-21 00:16:43,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:16:43,868 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:43,868 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:43,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:16:43,868 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:43,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:43,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1807539982, now seen corresponding path program 1 times [2021-11-21 00:16:43,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:43,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299623593] [2021-11-21 00:16:43,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:43,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:44,063 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:44,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:44,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299623593] [2021-11-21 00:16:44,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299623593] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:44,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:44,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:44,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587896695] [2021-11-21 00:16:44,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:44,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:44,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:44,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:44,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:44,066 INFO L87 Difference]: Start difference. First operand 1507 states and 2105 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 00:16:47,600 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:47,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:47,898 INFO L93 Difference]: Finished difference Result 1516 states and 2116 transitions. [2021-11-21 00:16:47,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:47,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 46 [2021-11-21 00:16:47,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:47,912 INFO L225 Difference]: With dead ends: 1516 [2021-11-21 00:16:47,912 INFO L226 Difference]: Without dead ends: 1514 [2021-11-21 00:16:47,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:47,914 INFO L933 BasicCegarLoop]: 1623 mSDtfsCounter, 1502 mSDsluCounter, 2434 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:47,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1509 Valid, 3760 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:16:47,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2021-11-21 00:16:47,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1505. [2021-11-21 00:16:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 840 states have (on average 1.2702380952380952) internal successors, (1067), 910 states have internal predecessors, (1067), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2103 transitions. [2021-11-21 00:16:48,018 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2103 transitions. Word has length 46 [2021-11-21 00:16:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:48,019 INFO L470 AbstractCegarLoop]: Abstraction has 1505 states and 2103 transitions. [2021-11-21 00:16:48,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-21 00:16:48,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2103 transitions. [2021-11-21 00:16:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-21 00:16:48,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:48,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:48,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:16:48,028 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:48,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1669282941, now seen corresponding path program 1 times [2021-11-21 00:16:48,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:48,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291526596] [2021-11-21 00:16:48,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:48,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:48,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:48,267 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:48,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291526596] [2021-11-21 00:16:48,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291526596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:48,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:48,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:48,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532464778] [2021-11-21 00:16:48,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:48,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:48,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:48,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:48,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:48,270 INFO L87 Difference]: Start difference. First operand 1505 states and 2103 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 00:16:51,677 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:51,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:51,964 INFO L93 Difference]: Finished difference Result 1514 states and 2114 transitions. [2021-11-21 00:16:51,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:51,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 51 [2021-11-21 00:16:51,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:51,978 INFO L225 Difference]: With dead ends: 1514 [2021-11-21 00:16:51,978 INFO L226 Difference]: Without dead ends: 1512 [2021-11-21 00:16:51,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:51,981 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 1499 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3756 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:51,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1506 Valid, 3756 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:16:51,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1512 states. [2021-11-21 00:16:52,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1512 to 1503. [2021-11-21 00:16:52,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 839 states have (on average 1.269368295589988) internal successors, (1065), 908 states have internal predecessors, (1065), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:52,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 2101 transitions. [2021-11-21 00:16:52,086 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 2101 transitions. Word has length 51 [2021-11-21 00:16:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:52,087 INFO L470 AbstractCegarLoop]: Abstraction has 1503 states and 2101 transitions. [2021-11-21 00:16:52,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-21 00:16:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 2101 transitions. [2021-11-21 00:16:52,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-21 00:16:52,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:52,090 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:52,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:16:52,091 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:52,091 INFO L85 PathProgramCache]: Analyzing trace with hash 141599472, now seen corresponding path program 1 times [2021-11-21 00:16:52,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:52,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140721762] [2021-11-21 00:16:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:52,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:52,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:52,316 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:52,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:52,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140721762] [2021-11-21 00:16:52,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140721762] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:52,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:52,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:52,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247666236] [2021-11-21 00:16:52,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:52,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:52,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:52,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:52,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:52,319 INFO L87 Difference]: Start difference. First operand 1503 states and 2101 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 00:16:55,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:55,905 INFO L93 Difference]: Finished difference Result 1512 states and 2112 transitions. [2021-11-21 00:16:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:55,906 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 56 [2021-11-21 00:16:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:55,917 INFO L225 Difference]: With dead ends: 1512 [2021-11-21 00:16:55,917 INFO L226 Difference]: Without dead ends: 1510 [2021-11-21 00:16:55,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:55,919 INFO L933 BasicCegarLoop]: 1619 mSDtfsCounter, 1496 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 3752 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:55,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 3752 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 00:16:55,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-11-21 00:16:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1501. [2021-11-21 00:16:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1501 states, 838 states have (on average 1.2684964200477327) internal successors, (1063), 906 states have internal predecessors, (1063), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2099 transitions. [2021-11-21 00:16:56,024 INFO L78 Accepts]: Start accepts. Automaton has 1501 states and 2099 transitions. Word has length 56 [2021-11-21 00:16:56,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:56,024 INFO L470 AbstractCegarLoop]: Abstraction has 1501 states and 2099 transitions. [2021-11-21 00:16:56,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-21 00:16:56,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1501 states and 2099 transitions. [2021-11-21 00:16:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-21 00:16:56,027 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:56,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:56,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:16:56,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash -2077723148, now seen corresponding path program 1 times [2021-11-21 00:16:56,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:56,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370355883] [2021-11-21 00:16:56,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:56,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:56,274 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:56,275 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:56,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370355883] [2021-11-21 00:16:56,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370355883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:56,275 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:56,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:56,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210526456] [2021-11-21 00:16:56,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:56,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:56,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:56,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:56,278 INFO L87 Difference]: Start difference. First operand 1501 states and 2099 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 00:16:59,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:16:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:16:59,627 INFO L93 Difference]: Finished difference Result 1510 states and 2110 transitions. [2021-11-21 00:16:59,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:16:59,628 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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 61 [2021-11-21 00:16:59,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:16:59,640 INFO L225 Difference]: With dead ends: 1510 [2021-11-21 00:16:59,640 INFO L226 Difference]: Without dead ends: 1508 [2021-11-21 00:16:59,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:16:59,642 INFO L933 BasicCegarLoop]: 1617 mSDtfsCounter, 1493 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:16:59,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1500 Valid, 3748 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 00:16:59,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2021-11-21 00:16:59,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1499. [2021-11-21 00:16:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 837 states have (on average 1.2676224611708482) internal successors, (1061), 904 states have internal predecessors, (1061), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:16:59,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2097 transitions. [2021-11-21 00:16:59,739 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2097 transitions. Word has length 61 [2021-11-21 00:16:59,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:16:59,740 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 2097 transitions. [2021-11-21 00:16:59,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-21 00:16:59,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2097 transitions. [2021-11-21 00:16:59,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 00:16:59,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:16:59,742 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:16:59,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:16:59,742 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:16:59,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:16:59,743 INFO L85 PathProgramCache]: Analyzing trace with hash -810269737, now seen corresponding path program 1 times [2021-11-21 00:16:59,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:16:59,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553322682] [2021-11-21 00:16:59,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:16:59,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:16:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:16:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:16:59,923 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:16:59,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553322682] [2021-11-21 00:16:59,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553322682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:16:59,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:16:59,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:16:59,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521869465] [2021-11-21 00:16:59,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:16:59,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:16:59,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:16:59,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:16:59,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:16:59,925 INFO L87 Difference]: Start difference. First operand 1499 states and 2097 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 00:17:03,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:03,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:03,582 INFO L93 Difference]: Finished difference Result 1508 states and 2108 transitions. [2021-11-21 00:17:03,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:03,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 66 [2021-11-21 00:17:03,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:03,595 INFO L225 Difference]: With dead ends: 1508 [2021-11-21 00:17:03,595 INFO L226 Difference]: Without dead ends: 1506 [2021-11-21 00:17:03,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:03,597 INFO L933 BasicCegarLoop]: 1615 mSDtfsCounter, 1490 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 3744 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:03,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1497 Valid, 3744 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:17:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-11-21 00:17:03,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1497. [2021-11-21 00:17:03,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 836 states have (on average 1.2667464114832536) internal successors, (1059), 902 states have internal predecessors, (1059), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:03,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2095 transitions. [2021-11-21 00:17:03,697 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2095 transitions. Word has length 66 [2021-11-21 00:17:03,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:03,698 INFO L470 AbstractCegarLoop]: Abstraction has 1497 states and 2095 transitions. [2021-11-21 00:17:03,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-11-21 00:17:03,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2095 transitions. [2021-11-21 00:17:03,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-21 00:17:03,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:03,700 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:03,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:17:03,700 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:03,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:03,701 INFO L85 PathProgramCache]: Analyzing trace with hash -240152734, now seen corresponding path program 1 times [2021-11-21 00:17:03,702 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:03,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863841287] [2021-11-21 00:17:03,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:03,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:03,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:03,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863841287] [2021-11-21 00:17:03,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863841287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:03,910 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:03,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:03,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119244244] [2021-11-21 00:17:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:03,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:03,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:03,912 INFO L87 Difference]: Start difference. First operand 1497 states and 2095 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:17:07,252 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:07,521 INFO L93 Difference]: Finished difference Result 1506 states and 2106 transitions. [2021-11-21 00:17:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:07,522 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 71 [2021-11-21 00:17:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:07,534 INFO L225 Difference]: With dead ends: 1506 [2021-11-21 00:17:07,534 INFO L226 Difference]: Without dead ends: 1504 [2021-11-21 00:17:07,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:07,536 INFO L933 BasicCegarLoop]: 1613 mSDtfsCounter, 1491 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1498 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:07,536 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1498 Valid, 3736 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:17:07,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2021-11-21 00:17:07,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1495. [2021-11-21 00:17:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 835 states have (on average 1.2658682634730538) internal successors, (1057), 900 states have internal predecessors, (1057), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 2093 transitions. [2021-11-21 00:17:07,691 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 2093 transitions. Word has length 71 [2021-11-21 00:17:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:07,691 INFO L470 AbstractCegarLoop]: Abstraction has 1495 states and 2093 transitions. [2021-11-21 00:17:07,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:17:07,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 2093 transitions. [2021-11-21 00:17:07,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:17:07,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:07,693 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:07,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:17:07,694 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:07,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1141601061, now seen corresponding path program 1 times [2021-11-21 00:17:07,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:07,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767994624] [2021-11-21 00:17:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:07,696 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:07,862 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:07,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:07,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767994624] [2021-11-21 00:17:07,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767994624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:07,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:07,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:07,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601032439] [2021-11-21 00:17:07,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:07,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:07,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:07,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:07,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:07,866 INFO L87 Difference]: Start difference. First operand 1495 states and 2093 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:17:11,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:11,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:11,790 INFO L93 Difference]: Finished difference Result 1504 states and 2104 transitions. [2021-11-21 00:17:11,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:11,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 73 [2021-11-21 00:17:11,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:11,802 INFO L225 Difference]: With dead ends: 1504 [2021-11-21 00:17:11,802 INFO L226 Difference]: Without dead ends: 1502 [2021-11-21 00:17:11,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:11,804 INFO L933 BasicCegarLoop]: 1611 mSDtfsCounter, 1483 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:11,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 3736 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-21 00:17:11,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1502 states. [2021-11-21 00:17:11,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1502 to 1493. [2021-11-21 00:17:11,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 834 states have (on average 1.264988009592326) internal successors, (1055), 898 states have internal predecessors, (1055), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 2091 transitions. [2021-11-21 00:17:11,914 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 2091 transitions. Word has length 73 [2021-11-21 00:17:11,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:11,915 INFO L470 AbstractCegarLoop]: Abstraction has 1493 states and 2091 transitions. [2021-11-21 00:17:11,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-11-21 00:17:11,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 2091 transitions. [2021-11-21 00:17:11,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-21 00:17:11,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:11,924 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:11,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 00:17:11,924 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:11,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:11,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1361060451, now seen corresponding path program 1 times [2021-11-21 00:17:11,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:11,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161315399] [2021-11-21 00:17:11,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:11,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:12,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:12,093 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:12,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161315399] [2021-11-21 00:17:12,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161315399] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:12,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:12,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:12,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757344818] [2021-11-21 00:17:12,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:12,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:12,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:12,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:12,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:12,095 INFO L87 Difference]: Start difference. First operand 1493 states and 2091 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:17:15,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:15,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:15,713 INFO L93 Difference]: Finished difference Result 1502 states and 2102 transitions. [2021-11-21 00:17:15,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:15,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 78 [2021-11-21 00:17:15,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:15,726 INFO L225 Difference]: With dead ends: 1502 [2021-11-21 00:17:15,726 INFO L226 Difference]: Without dead ends: 1500 [2021-11-21 00:17:15,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:15,729 INFO L933 BasicCegarLoop]: 1609 mSDtfsCounter, 1482 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:15,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1489 Valid, 3732 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:17:15,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1500 states. [2021-11-21 00:17:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1500 to 1491. [2021-11-21 00:17:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 833 states have (on average 1.2641056422569028) internal successors, (1053), 896 states have internal predecessors, (1053), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 2089 transitions. [2021-11-21 00:17:15,825 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 2089 transitions. Word has length 78 [2021-11-21 00:17:15,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:15,825 INFO L470 AbstractCegarLoop]: Abstraction has 1491 states and 2089 transitions. [2021-11-21 00:17:15,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2021-11-21 00:17:15,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 2089 transitions. [2021-11-21 00:17:15,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-21 00:17:15,827 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:15,827 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:15,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 00:17:15,828 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:15,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:15,828 INFO L85 PathProgramCache]: Analyzing trace with hash 803617159, now seen corresponding path program 1 times [2021-11-21 00:17:15,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:15,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474365746] [2021-11-21 00:17:15,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:15,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:16,035 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:16,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474365746] [2021-11-21 00:17:16,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474365746] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:16,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:16,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:16,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298608602] [2021-11-21 00:17:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:16,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:16,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:16,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:16,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:16,038 INFO L87 Difference]: Start difference. First operand 1491 states and 2089 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:17:19,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:19,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:19,461 INFO L93 Difference]: Finished difference Result 1500 states and 2100 transitions. [2021-11-21 00:17:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:19,461 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), 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 83 [2021-11-21 00:17:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:19,473 INFO L225 Difference]: With dead ends: 1500 [2021-11-21 00:17:19,473 INFO L226 Difference]: Without dead ends: 1498 [2021-11-21 00:17:19,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:19,475 INFO L933 BasicCegarLoop]: 1607 mSDtfsCounter, 1479 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:19,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1486 Valid, 3728 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-21 00:17:19,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2021-11-21 00:17:19,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1489. [2021-11-21 00:17:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 832 states have (on average 1.2632211538461537) internal successors, (1051), 894 states have internal predecessors, (1051), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:19,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 2087 transitions. [2021-11-21 00:17:19,626 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 2087 transitions. Word has length 83 [2021-11-21 00:17:19,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:19,627 INFO L470 AbstractCegarLoop]: Abstraction has 1489 states and 2087 transitions. [2021-11-21 00:17:19,627 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-21 00:17:19,628 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 2087 transitions. [2021-11-21 00:17:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-21 00:17:19,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:19,631 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:19,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 00:17:19,631 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:19,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:19,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1464370417, now seen corresponding path program 1 times [2021-11-21 00:17:19,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:19,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113264225] [2021-11-21 00:17:19,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:19,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:19,796 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:19,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113264225] [2021-11-21 00:17:19,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113264225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:19,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:19,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:19,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549851059] [2021-11-21 00:17:19,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:19,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:19,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:19,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:19,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:19,798 INFO L87 Difference]: Start difference. First operand 1489 states and 2087 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:17:22,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:23,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:23,112 INFO L93 Difference]: Finished difference Result 1498 states and 2098 transitions. [2021-11-21 00:17:23,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:23,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 88 [2021-11-21 00:17:23,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:23,124 INFO L225 Difference]: With dead ends: 1498 [2021-11-21 00:17:23,124 INFO L226 Difference]: Without dead ends: 1496 [2021-11-21 00:17:23,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:23,126 INFO L933 BasicCegarLoop]: 1605 mSDtfsCounter, 1476 mSDsluCounter, 2416 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:23,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1483 Valid, 3724 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 00:17:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2021-11-21 00:17:23,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1487. [2021-11-21 00:17:23,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 831 states have (on average 1.2623345367027679) internal successors, (1049), 892 states have internal predecessors, (1049), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2085 transitions. [2021-11-21 00:17:23,232 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2085 transitions. Word has length 88 [2021-11-21 00:17:23,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:23,233 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 2085 transitions. [2021-11-21 00:17:23,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-21 00:17:23,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2085 transitions. [2021-11-21 00:17:23,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-21 00:17:23,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:23,235 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:23,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 00:17:23,236 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:23,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:23,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1521654905, now seen corresponding path program 1 times [2021-11-21 00:17:23,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:23,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991011639] [2021-11-21 00:17:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:23,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:23,377 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:23,377 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:23,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991011639] [2021-11-21 00:17:23,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991011639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:23,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:23,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:23,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286350424] [2021-11-21 00:17:23,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:23,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:23,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:23,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:23,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:23,379 INFO L87 Difference]: Start difference. First operand 1487 states and 2085 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 00:17:26,822 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:27,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:27,053 INFO L93 Difference]: Finished difference Result 1496 states and 2096 transitions. [2021-11-21 00:17:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:27,053 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, (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 93 [2021-11-21 00:17:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:27,065 INFO L225 Difference]: With dead ends: 1496 [2021-11-21 00:17:27,065 INFO L226 Difference]: Without dead ends: 1494 [2021-11-21 00:17:27,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:27,067 INFO L933 BasicCegarLoop]: 1603 mSDtfsCounter, 1473 mSDsluCounter, 2414 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1480 SdHoareTripleChecker+Valid, 3720 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:27,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1480 Valid, 3720 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:17:27,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1494 states. [2021-11-21 00:17:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1494 to 1485. [2021-11-21 00:17:27,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 830 states have (on average 1.26144578313253) internal successors, (1047), 890 states have internal predecessors, (1047), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2083 transitions. [2021-11-21 00:17:27,174 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2083 transitions. Word has length 93 [2021-11-21 00:17:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:27,175 INFO L470 AbstractCegarLoop]: Abstraction has 1485 states and 2083 transitions. [2021-11-21 00:17:27,175 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-21 00:17:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2083 transitions. [2021-11-21 00:17:27,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-21 00:17:27,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:27,177 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 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] [2021-11-21 00:17:27,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 00:17:27,178 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_linux_net_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:27,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:27,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1459721526, now seen corresponding path program 1 times [2021-11-21 00:17:27,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:27,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016565314] [2021-11-21 00:17:27,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:27,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:27,353 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-11-21 00:17:27,353 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:27,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016565314] [2021-11-21 00:17:27,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016565314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:27,354 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:27,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:17:27,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292866225] [2021-11-21 00:17:27,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:27,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:27,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:27,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:27,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:27,356 INFO L87 Difference]: Start difference. First operand 1485 states and 2083 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:17:30,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:30,390 INFO L93 Difference]: Finished difference Result 2934 states and 4103 transitions. [2021-11-21 00:17:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:30,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 106 [2021-11-21 00:17:30,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:30,448 INFO L225 Difference]: With dead ends: 2934 [2021-11-21 00:17:30,448 INFO L226 Difference]: Without dead ends: 1490 [2021-11-21 00:17:30,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:30,456 INFO L933 BasicCegarLoop]: 1599 mSDtfsCounter, 1483 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:30,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1487 Valid, 2113 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 1 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 00:17:30,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2021-11-21 00:17:30,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1481. [2021-11-21 00:17:30,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 827 states have (on average 1.2599758162031438) internal successors, (1042), 886 states have internal predecessors, (1042), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2078 transitions. [2021-11-21 00:17:30,563 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2078 transitions. Word has length 106 [2021-11-21 00:17:30,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:30,563 INFO L470 AbstractCegarLoop]: Abstraction has 1481 states and 2078 transitions. [2021-11-21 00:17:30,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:17:30,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2078 transitions. [2021-11-21 00:17:30,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-21 00:17:30,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:30,565 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:30,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 00:17:30,566 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:30,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash 297312686, now seen corresponding path program 1 times [2021-11-21 00:17:30,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:30,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866990123] [2021-11-21 00:17:30,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:30,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:30,726 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:30,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:30,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866990123] [2021-11-21 00:17:30,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866990123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:30,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:30,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:30,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106594783] [2021-11-21 00:17:30,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:30,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:30,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:30,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:30,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:30,729 INFO L87 Difference]: Start difference. First operand 1481 states and 2078 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, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:17:34,313 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:34,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:34,543 INFO L93 Difference]: Finished difference Result 1490 states and 2089 transitions. [2021-11-21 00:17:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:34,544 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, (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 98 [2021-11-21 00:17:34,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:34,555 INFO L225 Difference]: With dead ends: 1490 [2021-11-21 00:17:34,555 INFO L226 Difference]: Without dead ends: 1488 [2021-11-21 00:17:34,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:34,557 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 1465 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:34,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1472 Valid, 3706 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-11-21 00:17:34,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2021-11-21 00:17:34,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 1479. [2021-11-21 00:17:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 826 states have (on average 1.2590799031476998) internal successors, (1040), 884 states have internal predecessors, (1040), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:34,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2076 transitions. [2021-11-21 00:17:34,669 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2076 transitions. Word has length 98 [2021-11-21 00:17:34,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:34,670 INFO L470 AbstractCegarLoop]: Abstraction has 1479 states and 2076 transitions. [2021-11-21 00:17:34,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-11-21 00:17:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2076 transitions. [2021-11-21 00:17:34,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-21 00:17:34,672 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:34,672 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:34,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 00:17:34,673 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:34,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:34,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2065544965, now seen corresponding path program 1 times [2021-11-21 00:17:34,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:34,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965793164] [2021-11-21 00:17:34,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:34,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:34,868 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:34,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965793164] [2021-11-21 00:17:34,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965793164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:34,871 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:34,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:34,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910306452] [2021-11-21 00:17:34,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:34,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:34,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:34,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:34,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:34,872 INFO L87 Difference]: Start difference. First operand 1479 states and 2076 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:17:38,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:38,531 INFO L93 Difference]: Finished difference Result 1488 states and 2087 transitions. [2021-11-21 00:17:38,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:38,531 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, (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 103 [2021-11-21 00:17:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:38,542 INFO L225 Difference]: With dead ends: 1488 [2021-11-21 00:17:38,542 INFO L226 Difference]: Without dead ends: 1486 [2021-11-21 00:17:38,544 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:38,544 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 1462 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 3702 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:38,545 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1469 Valid, 3702 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:17:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2021-11-21 00:17:38,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1477. [2021-11-21 00:17:38,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1477 states, 825 states have (on average 1.2581818181818183) internal successors, (1038), 882 states have internal predecessors, (1038), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2074 transitions. [2021-11-21 00:17:38,664 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2074 transitions. Word has length 103 [2021-11-21 00:17:38,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:38,664 INFO L470 AbstractCegarLoop]: Abstraction has 1477 states and 2074 transitions. [2021-11-21 00:17:38,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-11-21 00:17:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2074 transitions. [2021-11-21 00:17:38,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-21 00:17:38,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:38,667 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 4, 3, 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] [2021-11-21 00:17:38,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 00:17:38,667 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_linux_usb_register_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:38,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:38,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1086108597, now seen corresponding path program 1 times [2021-11-21 00:17:38,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:38,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727396249] [2021-11-21 00:17:38,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:38,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-21 00:17:38,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727396249] [2021-11-21 00:17:38,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727396249] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:17:38,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35650081] [2021-11-21 00:17:38,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:38,945 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:17:38,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:17:38,949 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:17:38,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:17:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:39,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 3484 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:17:39,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:40,244 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-21 00:17:40,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:17:40,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35650081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:40,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:17:40,245 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2021-11-21 00:17:40,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064314501] [2021-11-21 00:17:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:40,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:40,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:40,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:40,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:17:40,247 INFO L87 Difference]: Start difference. First operand 1477 states and 2074 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:17:43,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:43,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:43,378 INFO L93 Difference]: Finished difference Result 2918 states and 4085 transitions. [2021-11-21 00:17:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:43,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 114 [2021-11-21 00:17:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:43,390 INFO L225 Difference]: With dead ends: 2918 [2021-11-21 00:17:43,391 INFO L226 Difference]: Without dead ends: 1482 [2021-11-21 00:17:43,400 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:17:43,400 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 1451 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1456 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:43,401 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1456 Valid, 2104 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 299 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 00:17:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1482 states. [2021-11-21 00:17:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1482 to 1473. [2021-11-21 00:17:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 822 states have (on average 1.25669099756691) internal successors, (1033), 878 states have internal predecessors, (1033), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2069 transitions. [2021-11-21 00:17:43,524 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 2069 transitions. Word has length 114 [2021-11-21 00:17:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:43,525 INFO L470 AbstractCegarLoop]: Abstraction has 1473 states and 2069 transitions. [2021-11-21 00:17:43,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:17:43,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 2069 transitions. [2021-11-21 00:17:43,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-21 00:17:43,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:43,527 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:43,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:43,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-21 00:17:43,743 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:43,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:43,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1438157250, now seen corresponding path program 1 times [2021-11-21 00:17:43,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:43,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267010016] [2021-11-21 00:17:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:43,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:43,941 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:43,941 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:43,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267010016] [2021-11-21 00:17:43,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267010016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:43,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:43,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:43,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204146629] [2021-11-21 00:17:43,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:43,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:43,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:43,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:43,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:43,944 INFO L87 Difference]: Start difference. First operand 1473 states and 2069 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, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:17:47,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:47,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:47,684 INFO L93 Difference]: Finished difference Result 1482 states and 2080 transitions. [2021-11-21 00:17:47,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:47,685 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, (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 108 [2021-11-21 00:17:47,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:47,695 INFO L225 Difference]: With dead ends: 1482 [2021-11-21 00:17:47,696 INFO L226 Difference]: Without dead ends: 1480 [2021-11-21 00:17:47,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:47,697 INFO L933 BasicCegarLoop]: 1587 mSDtfsCounter, 1454 mSDsluCounter, 2398 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:47,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1461 Valid, 3688 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:17:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2021-11-21 00:17:47,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1471. [2021-11-21 00:17:47,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 821 states have (on average 1.2557856272838002) internal successors, (1031), 876 states have internal predecessors, (1031), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 2067 transitions. [2021-11-21 00:17:47,817 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 2067 transitions. Word has length 108 [2021-11-21 00:17:47,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:47,818 INFO L470 AbstractCegarLoop]: Abstraction has 1471 states and 2067 transitions. [2021-11-21 00:17:47,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-21 00:17:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 2067 transitions. [2021-11-21 00:17:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-21 00:17:47,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:47,820 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:47,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 00:17:47,821 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:47,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:47,821 INFO L85 PathProgramCache]: Analyzing trace with hash -964939657, now seen corresponding path program 1 times [2021-11-21 00:17:47,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:47,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448934268] [2021-11-21 00:17:47,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:47,822 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:48,036 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:48,036 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:48,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448934268] [2021-11-21 00:17:48,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448934268] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:48,037 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:48,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:48,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518383821] [2021-11-21 00:17:48,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:48,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:48,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:48,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:48,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:48,040 INFO L87 Difference]: Start difference. First operand 1471 states and 2067 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:17:51,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:51,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:51,558 INFO L93 Difference]: Finished difference Result 1480 states and 2078 transitions. [2021-11-21 00:17:51,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:51,559 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, (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 113 [2021-11-21 00:17:51,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:51,568 INFO L225 Difference]: With dead ends: 1480 [2021-11-21 00:17:51,568 INFO L226 Difference]: Without dead ends: 1478 [2021-11-21 00:17:51,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:51,570 INFO L933 BasicCegarLoop]: 1585 mSDtfsCounter, 1451 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1458 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:51,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1458 Valid, 3684 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 00:17:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2021-11-21 00:17:51,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1469. [2021-11-21 00:17:51,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 820 states have (on average 1.2548780487804878) internal successors, (1029), 874 states have internal predecessors, (1029), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:51,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2065 transitions. [2021-11-21 00:17:51,694 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2065 transitions. Word has length 113 [2021-11-21 00:17:51,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:51,695 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2065 transitions. [2021-11-21 00:17:51,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-11-21 00:17:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2065 transitions. [2021-11-21 00:17:51,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-21 00:17:51,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:51,698 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:51,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 00:17:51,698 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:51,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:51,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1700511656, now seen corresponding path program 1 times [2021-11-21 00:17:51,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:51,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591998844] [2021-11-21 00:17:51,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:51,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:51,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:51,846 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:51,847 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:51,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591998844] [2021-11-21 00:17:51,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591998844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:51,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:51,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:51,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161106561] [2021-11-21 00:17:51,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:51,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:51,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:51,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:51,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:51,850 INFO L87 Difference]: Start difference. First operand 1469 states and 2065 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, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:17:55,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:55,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:55,434 INFO L93 Difference]: Finished difference Result 1478 states and 2076 transitions. [2021-11-21 00:17:55,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:55,434 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, (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 118 [2021-11-21 00:17:55,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:55,442 INFO L225 Difference]: With dead ends: 1478 [2021-11-21 00:17:55,442 INFO L226 Difference]: Without dead ends: 1476 [2021-11-21 00:17:55,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:55,444 INFO L933 BasicCegarLoop]: 1583 mSDtfsCounter, 1448 mSDsluCounter, 2394 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1455 SdHoareTripleChecker+Valid, 3680 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:55,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1455 Valid, 3680 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:17:55,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-21 00:17:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2021-11-21 00:17:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 819 states have (on average 1.253968253968254) internal successors, (1027), 872 states have internal predecessors, (1027), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:55,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2063 transitions. [2021-11-21 00:17:55,570 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2063 transitions. Word has length 118 [2021-11-21 00:17:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:55,570 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2063 transitions. [2021-11-21 00:17:55,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:17:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2063 transitions. [2021-11-21 00:17:55,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-21 00:17:55,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:55,573 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:55,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 00:17:55,574 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:55,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:55,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1636779750, now seen corresponding path program 1 times [2021-11-21 00:17:55,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:55,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816608950] [2021-11-21 00:17:55,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:55,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:55,752 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:17:55,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:55,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816608950] [2021-11-21 00:17:55,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816608950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:55,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:55,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:17:55,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873823488] [2021-11-21 00:17:55,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:55,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:55,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:17:55,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:55,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:55,756 INFO L87 Difference]: Start difference. First operand 1467 states and 2063 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 00:17:59,073 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:17:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:59,292 INFO L93 Difference]: Finished difference Result 1476 states and 2074 transitions. [2021-11-21 00:17:59,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:59,293 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, (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 123 [2021-11-21 00:17:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:59,300 INFO L225 Difference]: With dead ends: 1476 [2021-11-21 00:17:59,300 INFO L226 Difference]: Without dead ends: 1474 [2021-11-21 00:17:59,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:59,302 INFO L933 BasicCegarLoop]: 1581 mSDtfsCounter, 1445 mSDsluCounter, 2392 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1452 SdHoareTripleChecker+Valid, 3676 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:59,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1452 Valid, 3676 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 00:17:59,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-11-21 00:17:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1465. [2021-11-21 00:17:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 818 states have (on average 1.2530562347188263) internal successors, (1025), 870 states have internal predecessors, (1025), 519 states have call successors, (519), 123 states have call predecessors, (519), 122 states have return successors, (517), 505 states have call predecessors, (517), 517 states have call successors, (517) [2021-11-21 00:17:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 2061 transitions. [2021-11-21 00:17:59,431 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 2061 transitions. Word has length 123 [2021-11-21 00:17:59,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:59,431 INFO L470 AbstractCegarLoop]: Abstraction has 1465 states and 2061 transitions. [2021-11-21 00:17:59,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-21 00:17:59,432 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 2061 transitions. [2021-11-21 00:17:59,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-21 00:17:59,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:59,434 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 4, 4, 4, 4, 4, 4, 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] [2021-11-21 00:17:59,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-21 00:17:59,435 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:17:59,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:59,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1686010327, now seen corresponding path program 1 times [2021-11-21 00:17:59,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:17:59,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484183602] [2021-11-21 00:17:59,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:59,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:17:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:59,635 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-21 00:17:59,635 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:17:59,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484183602] [2021-11-21 00:17:59,636 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484183602] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:17:59,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574518499] [2021-11-21 00:17:59,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:59,636 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:17:59,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:17:59,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:17:59,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:18:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:00,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 3731 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-21 00:18:00,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:01,002 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-11-21 00:18:01,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:18:01,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574518499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:01,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:18:01,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-11-21 00:18:01,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256101886] [2021-11-21 00:18:01,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:01,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:18:01,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:01,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:18:01,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:18:01,007 INFO L87 Difference]: Start difference. First operand 1465 states and 2061 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:18:05,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:05,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:05,618 INFO L93 Difference]: Finished difference Result 2895 states and 4092 transitions. [2021-11-21 00:18:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:18:05,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 139 [2021-11-21 00:18:05,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:05,625 INFO L225 Difference]: With dead ends: 2895 [2021-11-21 00:18:05,625 INFO L226 Difference]: Without dead ends: 1471 [2021-11-21 00:18:05,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:18:05,635 INFO L933 BasicCegarLoop]: 1515 mSDtfsCounter, 0 mSDsluCounter, 5207 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6057 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:05,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 6057 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 898 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 00:18:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2021-11-21 00:18:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1469. [2021-11-21 00:18:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1469 states, 821 states have (on average 1.2521315468940317) internal successors, (1028), 873 states have internal predecessors, (1028), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 506 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-21 00:18:05,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1469 states to 1469 states and 2070 transitions. [2021-11-21 00:18:05,768 INFO L78 Accepts]: Start accepts. Automaton has 1469 states and 2070 transitions. Word has length 139 [2021-11-21 00:18:05,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:05,769 INFO L470 AbstractCegarLoop]: Abstraction has 1469 states and 2070 transitions. [2021-11-21 00:18:05,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2021-11-21 00:18:05,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1469 states and 2070 transitions. [2021-11-21 00:18:05,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-21 00:18:05,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:05,772 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:05,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:05,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:05,986 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:05,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:05,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1602263416, now seen corresponding path program 1 times [2021-11-21 00:18:05,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:05,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338953652] [2021-11-21 00:18:05,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:05,987 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:18:06,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:06,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338953652] [2021-11-21 00:18:06,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338953652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:06,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:06,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:18:06,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724306290] [2021-11-21 00:18:06,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:06,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:18:06,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:06,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:18:06,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:06,197 INFO L87 Difference]: Start difference. First operand 1469 states and 2070 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, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:18:09,308 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:09,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:09,517 INFO L93 Difference]: Finished difference Result 1478 states and 2081 transitions. [2021-11-21 00:18:09,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:18:09,517 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, (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 128 [2021-11-21 00:18:09,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:09,524 INFO L225 Difference]: With dead ends: 1478 [2021-11-21 00:18:09,524 INFO L226 Difference]: Without dead ends: 1476 [2021-11-21 00:18:09,525 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:09,526 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 1442 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1449 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:09,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1449 Valid, 3672 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 00:18:09,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2021-11-21 00:18:09,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1467. [2021-11-21 00:18:09,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 820 states have (on average 1.251219512195122) internal successors, (1026), 871 states have internal predecessors, (1026), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 506 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-21 00:18:09,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2068 transitions. [2021-11-21 00:18:09,658 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2068 transitions. Word has length 128 [2021-11-21 00:18:09,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:09,659 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2068 transitions. [2021-11-21 00:18:09,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-21 00:18:09,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2068 transitions. [2021-11-21 00:18:09,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-21 00:18:09,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:09,663 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 00:18:09,663 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:09,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2057535592, now seen corresponding path program 1 times [2021-11-21 00:18:09,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:09,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786998215] [2021-11-21 00:18:09,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:09,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2021-11-21 00:18:09,871 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:09,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786998215] [2021-11-21 00:18:09,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786998215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:18:09,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763472669] [2021-11-21 00:18:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:09,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:09,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:09,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:09,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:18:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:10,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 3965 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-21 00:18:10,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:11,548 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2021-11-21 00:18:11,549 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:18:11,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763472669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:11,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:18:11,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2021-11-21 00:18:11,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047200232] [2021-11-21 00:18:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:11,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:18:11,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:11,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:18:11,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-21 00:18:11,551 INFO L87 Difference]: Start difference. First operand 1467 states and 2068 transitions. Second operand has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (32), 1 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-21 00:18:18,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:19,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:19,978 INFO L93 Difference]: Finished difference Result 1476 states and 2079 transitions. [2021-11-21 00:18:19,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:18:19,979 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (32), 1 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 196 [2021-11-21 00:18:19,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:19,985 INFO L225 Difference]: With dead ends: 1476 [2021-11-21 00:18:19,986 INFO L226 Difference]: Without dead ends: 1474 [2021-11-21 00:18:19,987 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:18:19,987 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 1348 mSDsluCounter, 6649 mSDsCounter, 0 mSdLazyCounter, 3672 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 7072 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3672 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:19,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 7072 Invalid, 3676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3672 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-21 00:18:19,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-11-21 00:18:20,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1467. [2021-11-21 00:18:20,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1467 states, 820 states have (on average 1.25) internal successors, (1025), 871 states have internal predecessors, (1025), 519 states have call successors, (519), 123 states have call predecessors, (519), 123 states have return successors, (523), 506 states have call predecessors, (523), 517 states have call successors, (523) [2021-11-21 00:18:20,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1467 states to 1467 states and 2067 transitions. [2021-11-21 00:18:20,125 INFO L78 Accepts]: Start accepts. Automaton has 1467 states and 2067 transitions. Word has length 196 [2021-11-21 00:18:20,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:20,125 INFO L470 AbstractCegarLoop]: Abstraction has 1467 states and 2067 transitions. [2021-11-21 00:18:20,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (32), 1 states have call predecessors, (32), 3 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2021-11-21 00:18:20,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1467 states and 2067 transitions. [2021-11-21 00:18:20,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2021-11-21 00:18:20,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:20,129 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:20,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:20,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-21 00:18:20,354 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:20,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:20,355 INFO L85 PathProgramCache]: Analyzing trace with hash -104496759, now seen corresponding path program 1 times [2021-11-21 00:18:20,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:20,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326192068] [2021-11-21 00:18:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:20,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 00:18:20,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:20,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326192068] [2021-11-21 00:18:20,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326192068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:20,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:20,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:18:20,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126859333] [2021-11-21 00:18:20,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:20,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:18:20,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:18:20,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:20,515 INFO L87 Difference]: Start difference. First operand 1467 states and 2067 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, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:18:22,405 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:24,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:25,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:25,005 INFO L93 Difference]: Finished difference Result 1474 states and 2077 transitions. [2021-11-21 00:18:25,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:18:25,006 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, (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 133 [2021-11-21 00:18:25,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:25,011 INFO L225 Difference]: With dead ends: 1474 [2021-11-21 00:18:25,011 INFO L226 Difference]: Without dead ends: 1347 [2021-11-21 00:18:25,014 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:25,015 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 1437 mSDsluCounter, 2390 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 3670 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:25,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 3670 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 522 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-11-21 00:18:25,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2021-11-21 00:18:25,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 1340. [2021-11-21 00:18:25,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 755 states have (on average 1.267549668874172) internal successors, (957), 804 states have internal predecessors, (957), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 466 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-21 00:18:25,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1917 transitions. [2021-11-21 00:18:25,134 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1917 transitions. Word has length 133 [2021-11-21 00:18:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:25,135 INFO L470 AbstractCegarLoop]: Abstraction has 1340 states and 1917 transitions. [2021-11-21 00:18:25,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-21 00:18:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1917 transitions. [2021-11-21 00:18:25,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-21 00:18:25,138 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:25,139 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:25,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 00:18:25,139 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting kzallocErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:25,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:25,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1654766009, now seen corresponding path program 1 times [2021-11-21 00:18:25,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:25,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465666086] [2021-11-21 00:18:25,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:25,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:25,378 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-21 00:18:25,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:25,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465666086] [2021-11-21 00:18:25,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465666086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:25,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:25,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:18:25,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693976329] [2021-11-21 00:18:25,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:25,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:18:25,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:25,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:18:25,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:18:25,382 INFO L87 Difference]: Start difference. First operand 1340 states and 1917 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 00:18:28,237 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:28,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:28,460 INFO L93 Difference]: Finished difference Result 2664 states and 3844 transitions. [2021-11-21 00:18:28,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:18:28,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 199 [2021-11-21 00:18:28,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:28,468 INFO L225 Difference]: With dead ends: 2664 [2021-11-21 00:18:28,468 INFO L226 Difference]: Without dead ends: 1343 [2021-11-21 00:18:28,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:18:28,477 INFO L933 BasicCegarLoop]: 1452 mSDtfsCounter, 1261 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:28,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1266 Valid, 1964 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 00:18:28,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2021-11-21 00:18:28,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1338. [2021-11-21 00:18:28,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 753 states have (on average 1.2656042496679947) internal successors, (953), 802 states have internal predecessors, (953), 477 states have call successors, (477), 103 states have call predecessors, (477), 104 states have return successors, (483), 466 states have call predecessors, (483), 477 states have call successors, (483) [2021-11-21 00:18:28,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1913 transitions. [2021-11-21 00:18:28,607 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1913 transitions. Word has length 199 [2021-11-21 00:18:28,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:28,608 INFO L470 AbstractCegarLoop]: Abstraction has 1338 states and 1913 transitions. [2021-11-21 00:18:28,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-21 00:18:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1913 transitions. [2021-11-21 00:18:28,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2021-11-21 00:18:28,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:28,626 INFO L514 BasicCegarLoop]: trace histogram [41, 41, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 15, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:28,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 00:18:28,627 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:28,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:28,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1601548711, now seen corresponding path program 1 times [2021-11-21 00:18:28,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:28,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258054566] [2021-11-21 00:18:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:28,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 4299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4299 trivial. 0 not checked. [2021-11-21 00:18:28,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:28,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258054566] [2021-11-21 00:18:28,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258054566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:28,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:28,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 00:18:28,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85178942] [2021-11-21 00:18:28,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:28,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:18:28,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:28,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:18:28,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:28,981 INFO L87 Difference]: Start difference. First operand 1338 states and 1913 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-21 00:18:32,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:32,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:32,992 INFO L93 Difference]: Finished difference Result 1420 states and 2020 transitions. [2021-11-21 00:18:32,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:18:32,993 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 477 [2021-11-21 00:18:32,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:33,000 INFO L225 Difference]: With dead ends: 1420 [2021-11-21 00:18:33,000 INFO L226 Difference]: Without dead ends: 1418 [2021-11-21 00:18:33,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:18:33,002 INFO L933 BasicCegarLoop]: 1448 mSDtfsCounter, 1142 mSDsluCounter, 3944 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 4913 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:33,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1148 Valid, 4913 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 00:18:33,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-11-21 00:18:33,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1413. [2021-11-21 00:18:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 796 states have (on average 1.265075376884422) internal successors, (1007), 847 states have internal predecessors, (1007), 498 states have call successors, (498), 115 states have call predecessors, (498), 116 states have return successors, (504), 487 states have call predecessors, (504), 498 states have call successors, (504) [2021-11-21 00:18:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 2009 transitions. [2021-11-21 00:18:33,137 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 2009 transitions. Word has length 477 [2021-11-21 00:18:33,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:33,138 INFO L470 AbstractCegarLoop]: Abstraction has 1413 states and 2009 transitions. [2021-11-21 00:18:33,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (57), 3 states have call predecessors, (57), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-21 00:18:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 2009 transitions. [2021-11-21 00:18:33,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 836 [2021-11-21 00:18:33,246 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:33,246 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 15, 15, 14, 8, 8, 8, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:33,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 00:18:33,247 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:33,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:33,247 INFO L85 PathProgramCache]: Analyzing trace with hash -861126958, now seen corresponding path program 1 times [2021-11-21 00:18:33,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:33,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634960893] [2021-11-21 00:18:33,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:33,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4012 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3998 trivial. 0 not checked. [2021-11-21 00:18:33,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:33,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634960893] [2021-11-21 00:18:33,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634960893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:33,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:33,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:18:33,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288654219] [2021-11-21 00:18:33,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:33,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:18:33,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:33,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:18:33,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:33,715 INFO L87 Difference]: Start difference. First operand 1413 states and 2009 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-21 00:18:38,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:38,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:38,375 INFO L93 Difference]: Finished difference Result 2994 states and 4324 transitions. [2021-11-21 00:18:38,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:18:38,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 835 [2021-11-21 00:18:38,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:38,385 INFO L225 Difference]: With dead ends: 2994 [2021-11-21 00:18:38,386 INFO L226 Difference]: Without dead ends: 1600 [2021-11-21 00:18:38,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:38,395 INFO L933 BasicCegarLoop]: 1422 mSDtfsCounter, 128 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 628 mSolverCounterSat, 35 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 4218 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 628 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:38,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 4218 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 628 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-11-21 00:18:38,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2021-11-21 00:18:38,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1445. [2021-11-21 00:18:38,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 817 states have (on average 1.266829865361077) internal successors, (1035), 870 states have internal predecessors, (1035), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 498 states have call predecessors, (515), 509 states have call successors, (515) [2021-11-21 00:18:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2059 transitions. [2021-11-21 00:18:38,544 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2059 transitions. Word has length 835 [2021-11-21 00:18:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:38,545 INFO L470 AbstractCegarLoop]: Abstraction has 1445 states and 2059 transitions. [2021-11-21 00:18:38,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2021-11-21 00:18:38,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2059 transitions. [2021-11-21 00:18:38,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2021-11-21 00:18:38,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:38,563 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 15, 15, 14, 10, 10, 10, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:38,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-21 00:18:38,563 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:38,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1856103713, now seen corresponding path program 1 times [2021-11-21 00:18:38,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:38,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001282100] [2021-11-21 00:18:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:38,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4759 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 4737 trivial. 0 not checked. [2021-11-21 00:18:39,008 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:39,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001282100] [2021-11-21 00:18:39,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001282100] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:18:39,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010554950] [2021-11-21 00:18:39,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:39,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:39,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:39,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:39,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:18:40,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:40,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 8062 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:18:40,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4759 backedges. 1302 proven. 0 refuted. 0 times theorem prover too weak. 3457 trivial. 0 not checked. [2021-11-21 00:18:42,147 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:18:42,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010554950] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:42,148 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 00:18:42,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2021-11-21 00:18:42,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313521117] [2021-11-21 00:18:42,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:42,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:18:42,150 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:18:42,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:18:42,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:42,151 INFO L87 Difference]: Start difference. First operand 1445 states and 2059 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-21 00:18:45,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:18:45,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:45,896 INFO L93 Difference]: Finished difference Result 2877 states and 4138 transitions. [2021-11-21 00:18:45,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:18:45,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) Word has length 888 [2021-11-21 00:18:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:45,905 INFO L225 Difference]: With dead ends: 2877 [2021-11-21 00:18:45,905 INFO L226 Difference]: Without dead ends: 1451 [2021-11-21 00:18:45,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:45,914 INFO L933 BasicCegarLoop]: 1383 mSDtfsCounter, 1 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:45,914 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 2763 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 407 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-11-21 00:18:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2021-11-21 00:18:46,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1447. [2021-11-21 00:18:46,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1447 states, 819 states have (on average 1.2661782661782661) internal successors, (1037), 872 states have internal predecessors, (1037), 509 states have call successors, (509), 115 states have call predecessors, (509), 116 states have return successors, (515), 498 states have call predecessors, (515), 509 states have call successors, (515) [2021-11-21 00:18:46,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1447 states to 1447 states and 2061 transitions. [2021-11-21 00:18:46,065 INFO L78 Accepts]: Start accepts. Automaton has 1447 states and 2061 transitions. Word has length 888 [2021-11-21 00:18:46,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:46,066 INFO L470 AbstractCegarLoop]: Abstraction has 1447 states and 2061 transitions. [2021-11-21 00:18:46,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 2 states have call successors, (93), 2 states have call predecessors, (93), 2 states have return successors, (91), 2 states have call predecessors, (91), 2 states have call successors, (91) [2021-11-21 00:18:46,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1447 states and 2061 transitions. [2021-11-21 00:18:46,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 937 [2021-11-21 00:18:46,085 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:46,085 INFO L514 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 15, 15, 14, 10, 10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:46,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:46,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-21 00:18:46,311 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-21 00:18:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1110125714, now seen corresponding path program 1 times [2021-11-21 00:18:46,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:18:46,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446669968] [2021-11-21 00:18:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:46,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:18:46,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5522 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 5494 trivial. 0 not checked. [2021-11-21 00:18:46,845 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:18:46,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446669968] [2021-11-21 00:18:46,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446669968] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 00:18:46,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917663003] [2021-11-21 00:18:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:46,846 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:46,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:46,847 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:46,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_661dc5cf-78bc-4177-ae3e-5067d1148189/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:18:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:48,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 8322 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:18:48,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:49,927 INFO L134 CoverageAnalysis]: Checked inductivity of 5522 backedges. 1695 proven. 1 refuted. 0 times theorem prover too weak. 3826 trivial. 0 not checked. [2021-11-21 00:18:49,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:52,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5522 backedges. 14 proven. 14 refuted. 0 times theorem prover too weak. 5494 trivial. 0 not checked. [2021-11-21 00:18:52,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917663003] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:52,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1828818613] [2021-11-21 00:18:52,733 INFO L159 IcfgInterpreter]: Started Sifa with 252 locations of interest [2021-11-21 00:18:52,733 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:18:52,741 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:18:52,747 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:18:52,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:19:06,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 58 select indices, 58 select index equivalence classes, 1711 disjoint index pairs (out of 1653 index pairs), introduced 58 new quantified variables, introduced 0 case distinctions, treesize of input 2208 treesize of output 1893 [2021-11-21 00:19:32,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,278 INFO L244 Elim1Store]: Index analysis took 113 ms [2021-11-21 00:19:32,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 261 treesize of output 276 [2021-11-21 00:19:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 224 treesize of output 223 [2021-11-21 00:19:32,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:32,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 194 [2021-11-21 00:19:33,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 22 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 136 [2021-11-21 00:19:33,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 90 [2021-11-21 00:19:33,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:19:33,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-11-21 00:20:15,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:15,621 INFO L244 Elim1Store]: Index analysis took 135 ms [2021-11-21 00:20:15,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 31 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 266 [2021-11-21 00:20:16,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,497 INFO L244 Elim1Store]: Index analysis took 157 ms [2021-11-21 00:20:16,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 37 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 144 [2021-11-21 00:20:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:20:16,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71