./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF --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 f240ffa8bbe57321940b5df51685e00d551a6f85a6476ff38145ce15f731fd7b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:25:20,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:25:20,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:25:20,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:25:20,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:25:20,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:25:20,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:25:20,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:25:20,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:25:20,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:25:20,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:25:20,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:25:20,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:25:20,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:25:20,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:25:20,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:25:20,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:25:20,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:25:20,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:25:20,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:25:20,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:25:20,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:25:20,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:25:20,373 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:25:20,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:25:20,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:25:20,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:25:20,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:25:20,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:25:20,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:25:20,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:25:20,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:25:20,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:25:20,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:25:20,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:25:20,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:25:20,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:25:20,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:25:20,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:25:20,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:25:20,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:25:20,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-12 23:25:20,486 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:25:20,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:25:20,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:25:20,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:25:20,494 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:25:20,495 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:25:20,495 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:25:20,495 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 23:25:20,503 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:25:20,504 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:25:20,505 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 23:25:20,505 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 23:25:20,505 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:25:20,506 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 23:25:20,506 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 23:25:20,506 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 23:25:20,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:25:20,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 23:25:20,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:25:20,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:25:20,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:25:20,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:25:20,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:25:20,509 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:25:20,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:25:20,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:25:20,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:25:20,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:25:20,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:20,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:25:20,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:25:20,513 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:25:20,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 23:25:20,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 23:25:20,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:25:20,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:25:20,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:25:20,515 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_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f240ffa8bbe57321940b5df51685e00d551a6f85a6476ff38145ce15f731fd7b [2021-11-12 23:25:20,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:25:20,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:25:20,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:25:20,873 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:25:20,874 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:25:20,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i [2021-11-12 23:25:20,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/a8cea578b/8605496c4c374e20bc3e6fc4ba046c20/FLAG0a584c412 [2021-11-12 23:25:22,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:25:22,175 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i [2021-11-12 23:25:22,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/a8cea578b/8605496c4c374e20bc3e6fc4ba046c20/FLAG0a584c412 [2021-11-12 23:25:22,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/a8cea578b/8605496c4c374e20bc3e6fc4ba046c20 [2021-11-12 23:25:22,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:25:22,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:25:22,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:22,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:25:22,451 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:25:22,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:22" (1/1) ... [2021-11-12 23:25:22,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7166e3b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:22, skipping insertion in model container [2021-11-12 23:25:22,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:22" (1/1) ... [2021-11-12 23:25:22,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:25:22,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:27,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357609,357622] [2021-11-12 23:25:27,627 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357754,357767] [2021-11-12 23:25:27,628 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357900,357913] [2021-11-12 23:25:27,629 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358065,358078] [2021-11-12 23:25:27,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358223,358236] [2021-11-12 23:25:27,630 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358381,358394] [2021-11-12 23:25:27,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358539,358552] [2021-11-12 23:25:27,632 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358699,358712] [2021-11-12 23:25:27,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358858,358871] [2021-11-12 23:25:27,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358997,359010] [2021-11-12 23:25:27,634 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359139,359152] [2021-11-12 23:25:27,635 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359288,359301] [2021-11-12 23:25:27,635 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359427,359440] [2021-11-12 23:25:27,636 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359582,359595] [2021-11-12 23:25:27,637 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359742,359755] [2021-11-12 23:25:27,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359893,359906] [2021-11-12 23:25:27,638 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360044,360057] [2021-11-12 23:25:27,639 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360196,360209] [2021-11-12 23:25:27,640 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360345,360358] [2021-11-12 23:25:27,640 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360493,360506] [2021-11-12 23:25:27,641 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360650,360663] [2021-11-12 23:25:27,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360799,360812] [2021-11-12 23:25:27,642 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360955,360968] [2021-11-12 23:25:27,643 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361108,361121] [2021-11-12 23:25:27,644 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361254,361267] [2021-11-12 23:25:27,644 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361397,361410] [2021-11-12 23:25:27,645 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361549,361562] [2021-11-12 23:25:27,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361695,361708] [2021-11-12 23:25:27,646 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361840,361853] [2021-11-12 23:25:27,647 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361994,362007] [2021-11-12 23:25:27,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362145,362158] [2021-11-12 23:25:27,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362300,362313] [2021-11-12 23:25:27,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362452,362465] [2021-11-12 23:25:27,649 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362607,362620] [2021-11-12 23:25:27,650 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362771,362784] [2021-11-12 23:25:27,651 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362927,362940] [2021-11-12 23:25:27,651 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363091,363104] [2021-11-12 23:25:27,652 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363233,363246] [2021-11-12 23:25:27,653 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363391,363404] [2021-11-12 23:25:27,653 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363558,363571] [2021-11-12 23:25:27,654 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363717,363730] [2021-11-12 23:25:27,655 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363876,363889] [2021-11-12 23:25:27,655 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364025,364038] [2021-11-12 23:25:27,656 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364172,364185] [2021-11-12 23:25:27,657 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364311,364324] [2021-11-12 23:25:27,657 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364474,364487] [2021-11-12 23:25:27,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364640,364653] [2021-11-12 23:25:27,658 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364804,364817] [2021-11-12 23:25:27,659 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364969,364982] [2021-11-12 23:25:27,660 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365134,365147] [2021-11-12 23:25:27,660 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365300,365313] [2021-11-12 23:25:27,661 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365465,365478] [2021-11-12 23:25:27,662 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365632,365645] [2021-11-12 23:25:27,662 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365792,365805] [2021-11-12 23:25:27,663 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365954,365967] [2021-11-12 23:25:27,663 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366113,366126] [2021-11-12 23:25:27,664 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366259,366272] [2021-11-12 23:25:27,665 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366402,366415] [2021-11-12 23:25:27,665 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366546,366559] [2021-11-12 23:25:27,666 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366689,366702] [2021-11-12 23:25:27,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366833,366846] [2021-11-12 23:25:27,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366974,366987] [2021-11-12 23:25:27,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367112,367125] [2021-11-12 23:25:27,668 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367270,367283] [2021-11-12 23:25:27,669 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367429,367442] [2021-11-12 23:25:27,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367585,367598] [2021-11-12 23:25:27,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367734,367747] [2021-11-12 23:25:27,671 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367886,367899] [2021-11-12 23:25:27,672 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368037,368050] [2021-11-12 23:25:27,672 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368186,368199] [2021-11-12 23:25:27,673 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368338,368351] [2021-11-12 23:25:27,673 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368486,368499] [2021-11-12 23:25:27,674 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368639,368652] [2021-11-12 23:25:27,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368790,368803] [2021-11-12 23:25:27,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368940,368953] [2021-11-12 23:25:27,676 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369087,369100] [2021-11-12 23:25:27,676 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369238,369251] [2021-11-12 23:25:27,677 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369389,369402] [2021-11-12 23:25:27,677 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369537,369550] [2021-11-12 23:25:27,678 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369703,369716] [2021-11-12 23:25:27,679 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369872,369885] [2021-11-12 23:25:27,679 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370039,370052] [2021-11-12 23:25:27,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370207,370220] [2021-11-12 23:25:27,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370357,370370] [2021-11-12 23:25:27,681 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370504,370517] [2021-11-12 23:25:27,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370665,370678] [2021-11-12 23:25:27,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370835,370848] [2021-11-12 23:25:27,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370997,371010] [2021-11-12 23:25:27,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:27,737 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-12 23:25:27,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1177a075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:27, skipping insertion in model container [2021-11-12 23:25:27,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:27,739 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-12 23:25:27,741 INFO L158 Benchmark]: Toolchain (without parser) took 5295.40ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 54.2MB in the beginning and 102.1MB in the end (delta: -48.0MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2021-11-12 23:25:27,742 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 23:25:27,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5292.09ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 53.9MB in the beginning and 102.1MB in the end (delta: -48.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2021-11-12 23:25:27,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 67.7MB in the end (delta: 47.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5292.09ms. Allocated memory was 98.6MB in the beginning and 169.9MB in the end (delta: 71.3MB). Free memory was 53.9MB in the beginning and 102.1MB in the end (delta: -48.2MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 5225]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF --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 f240ffa8bbe57321940b5df51685e00d551a6f85a6476ff38145ce15f731fd7b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 23:25:30,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 23:25:30,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 23:25:30,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 23:25:30,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 23:25:30,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 23:25:30,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 23:25:30,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 23:25:30,653 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 23:25:30,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 23:25:30,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 23:25:30,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 23:25:30,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 23:25:30,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 23:25:30,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 23:25:30,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 23:25:30,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 23:25:30,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 23:25:30,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 23:25:30,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 23:25:30,698 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 23:25:30,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 23:25:30,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 23:25:30,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 23:25:30,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 23:25:30,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 23:25:30,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 23:25:30,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 23:25:30,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 23:25:30,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 23:25:30,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 23:25:30,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 23:25:30,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 23:25:30,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 23:25:30,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 23:25:30,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 23:25:30,732 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 23:25:30,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 23:25:30,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 23:25:30,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 23:25:30,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 23:25:30,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-12 23:25:30,822 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 23:25:30,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 23:25:30,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 23:25:30,824 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 23:25:30,825 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 23:25:30,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 23:25:30,825 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 23:25:30,826 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 23:25:30,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 23:25:30,827 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 23:25:30,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 23:25:30,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 23:25:30,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 23:25:30,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 23:25:30,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 23:25:30,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 23:25:30,833 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 23:25:30,833 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 23:25:30,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 23:25:30,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 23:25:30,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 23:25:30,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 23:25:30,835 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 23:25:30,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 23:25:30,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:30,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 23:25:30,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 23:25:30,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 23:25:30,837 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 23:25:30,837 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 23:25:30,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 23:25:30,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 23:25:30,839 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 23:25:30,839 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f240ffa8bbe57321940b5df51685e00d551a6f85a6476ff38145ce15f731fd7b [2021-11-12 23:25:31,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 23:25:31,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 23:25:31,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 23:25:31,379 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 23:25:31,380 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 23:25:31,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i [2021-11-12 23:25:31,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/8196feae6/313f5df5e7b54843bd7d69e766665343/FLAG02a49f120 [2021-11-12 23:25:32,731 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 23:25:32,732 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i [2021-11-12 23:25:32,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/8196feae6/313f5df5e7b54843bd7d69e766665343/FLAG02a49f120 [2021-11-12 23:25:32,958 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/data/8196feae6/313f5df5e7b54843bd7d69e766665343 [2021-11-12 23:25:32,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 23:25:32,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 23:25:32,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:32,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 23:25:32,973 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 23:25:32,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:32" (1/1) ... [2021-11-12 23:25:32,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67b7f64a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:32, skipping insertion in model container [2021-11-12 23:25:32,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 11:25:32" (1/1) ... [2021-11-12 23:25:32,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 23:25:33,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:37,836 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357609,357622] [2021-11-12 23:25:37,839 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357754,357767] [2021-11-12 23:25:37,840 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357900,357913] [2021-11-12 23:25:37,840 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358065,358078] [2021-11-12 23:25:37,841 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358223,358236] [2021-11-12 23:25:37,841 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358381,358394] [2021-11-12 23:25:37,842 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358539,358552] [2021-11-12 23:25:37,843 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358699,358712] [2021-11-12 23:25:37,843 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358858,358871] [2021-11-12 23:25:37,844 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358997,359010] [2021-11-12 23:25:37,845 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359139,359152] [2021-11-12 23:25:37,845 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359288,359301] [2021-11-12 23:25:37,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359427,359440] [2021-11-12 23:25:37,846 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359582,359595] [2021-11-12 23:25:37,847 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359742,359755] [2021-11-12 23:25:37,847 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359893,359906] [2021-11-12 23:25:37,848 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360044,360057] [2021-11-12 23:25:37,849 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360196,360209] [2021-11-12 23:25:37,849 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360345,360358] [2021-11-12 23:25:37,850 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360493,360506] [2021-11-12 23:25:37,850 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360650,360663] [2021-11-12 23:25:37,851 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360799,360812] [2021-11-12 23:25:37,852 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360955,360968] [2021-11-12 23:25:37,852 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361108,361121] [2021-11-12 23:25:37,853 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361254,361267] [2021-11-12 23:25:37,854 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361397,361410] [2021-11-12 23:25:37,854 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361549,361562] [2021-11-12 23:25:37,855 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361695,361708] [2021-11-12 23:25:37,855 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361840,361853] [2021-11-12 23:25:37,856 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361994,362007] [2021-11-12 23:25:37,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362145,362158] [2021-11-12 23:25:37,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362300,362313] [2021-11-12 23:25:37,858 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362452,362465] [2021-11-12 23:25:37,858 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362607,362620] [2021-11-12 23:25:37,859 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362771,362784] [2021-11-12 23:25:37,859 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362927,362940] [2021-11-12 23:25:37,860 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363091,363104] [2021-11-12 23:25:37,861 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363233,363246] [2021-11-12 23:25:37,861 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363391,363404] [2021-11-12 23:25:37,862 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363558,363571] [2021-11-12 23:25:37,862 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363717,363730] [2021-11-12 23:25:37,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363876,363889] [2021-11-12 23:25:37,863 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364025,364038] [2021-11-12 23:25:37,864 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364172,364185] [2021-11-12 23:25:37,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364311,364324] [2021-11-12 23:25:37,865 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364474,364487] [2021-11-12 23:25:37,866 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364640,364653] [2021-11-12 23:25:37,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364804,364817] [2021-11-12 23:25:37,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364969,364982] [2021-11-12 23:25:37,868 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365134,365147] [2021-11-12 23:25:37,868 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365300,365313] [2021-11-12 23:25:37,869 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365465,365478] [2021-11-12 23:25:37,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365632,365645] [2021-11-12 23:25:37,870 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365792,365805] [2021-11-12 23:25:37,897 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365954,365967] [2021-11-12 23:25:37,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366113,366126] [2021-11-12 23:25:37,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366259,366272] [2021-11-12 23:25:37,899 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366402,366415] [2021-11-12 23:25:37,900 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366546,366559] [2021-11-12 23:25:37,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366689,366702] [2021-11-12 23:25:37,901 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366833,366846] [2021-11-12 23:25:37,902 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366974,366987] [2021-11-12 23:25:37,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367112,367125] [2021-11-12 23:25:37,903 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367270,367283] [2021-11-12 23:25:37,904 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367429,367442] [2021-11-12 23:25:37,905 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367585,367598] [2021-11-12 23:25:37,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367734,367747] [2021-11-12 23:25:37,906 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367886,367899] [2021-11-12 23:25:37,907 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368037,368050] [2021-11-12 23:25:37,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368186,368199] [2021-11-12 23:25:37,908 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368338,368351] [2021-11-12 23:25:37,909 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368486,368499] [2021-11-12 23:25:37,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368639,368652] [2021-11-12 23:25:37,910 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368790,368803] [2021-11-12 23:25:37,911 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368940,368953] [2021-11-12 23:25:37,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369087,369100] [2021-11-12 23:25:37,912 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369238,369251] [2021-11-12 23:25:37,913 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369389,369402] [2021-11-12 23:25:37,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369537,369550] [2021-11-12 23:25:37,914 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369703,369716] [2021-11-12 23:25:37,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369872,369885] [2021-11-12 23:25:37,915 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370039,370052] [2021-11-12 23:25:37,916 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370207,370220] [2021-11-12 23:25:37,916 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370357,370370] [2021-11-12 23:25:37,917 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370504,370517] [2021-11-12 23:25:37,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370665,370678] [2021-11-12 23:25:37,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370835,370848] [2021-11-12 23:25:37,919 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370997,371010] [2021-11-12 23:25:37,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:37,994 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-12 23:25:38,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 23:25:38,680 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357609,357622] [2021-11-12 23:25:38,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357754,357767] [2021-11-12 23:25:38,682 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357900,357913] [2021-11-12 23:25:38,683 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358065,358078] [2021-11-12 23:25:38,684 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358223,358236] [2021-11-12 23:25:38,685 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358381,358394] [2021-11-12 23:25:38,691 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358539,358552] [2021-11-12 23:25:38,692 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358699,358712] [2021-11-12 23:25:38,693 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358858,358871] [2021-11-12 23:25:38,693 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358997,359010] [2021-11-12 23:25:38,694 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359139,359152] [2021-11-12 23:25:38,694 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359288,359301] [2021-11-12 23:25:38,695 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359427,359440] [2021-11-12 23:25:38,695 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359582,359595] [2021-11-12 23:25:38,697 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359742,359755] [2021-11-12 23:25:38,698 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359893,359906] [2021-11-12 23:25:38,698 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360044,360057] [2021-11-12 23:25:38,699 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360196,360209] [2021-11-12 23:25:38,700 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360345,360358] [2021-11-12 23:25:38,700 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360493,360506] [2021-11-12 23:25:38,701 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360650,360663] [2021-11-12 23:25:38,701 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360799,360812] [2021-11-12 23:25:38,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360955,360968] [2021-11-12 23:25:38,702 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361108,361121] [2021-11-12 23:25:38,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361254,361267] [2021-11-12 23:25:38,703 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361397,361410] [2021-11-12 23:25:38,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361549,361562] [2021-11-12 23:25:38,704 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361695,361708] [2021-11-12 23:25:38,705 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361840,361853] [2021-11-12 23:25:38,706 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361994,362007] [2021-11-12 23:25:38,706 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362145,362158] [2021-11-12 23:25:38,708 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362300,362313] [2021-11-12 23:25:38,709 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362452,362465] [2021-11-12 23:25:38,709 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362607,362620] [2021-11-12 23:25:38,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362771,362784] [2021-11-12 23:25:38,710 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362927,362940] [2021-11-12 23:25:38,711 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363091,363104] [2021-11-12 23:25:38,712 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363233,363246] [2021-11-12 23:25:38,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363391,363404] [2021-11-12 23:25:38,713 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363558,363571] [2021-11-12 23:25:38,715 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363717,363730] [2021-11-12 23:25:38,715 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363876,363889] [2021-11-12 23:25:38,716 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364025,364038] [2021-11-12 23:25:38,716 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364172,364185] [2021-11-12 23:25:38,717 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364311,364324] [2021-11-12 23:25:38,718 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364474,364487] [2021-11-12 23:25:38,719 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364640,364653] [2021-11-12 23:25:38,724 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364804,364817] [2021-11-12 23:25:38,725 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364969,364982] [2021-11-12 23:25:38,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365134,365147] [2021-11-12 23:25:38,726 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365300,365313] [2021-11-12 23:25:38,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365465,365478] [2021-11-12 23:25:38,727 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365632,365645] [2021-11-12 23:25:38,728 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365792,365805] [2021-11-12 23:25:38,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365954,365967] [2021-11-12 23:25:38,729 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366113,366126] [2021-11-12 23:25:38,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366259,366272] [2021-11-12 23:25:38,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366402,366415] [2021-11-12 23:25:38,731 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366546,366559] [2021-11-12 23:25:38,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366689,366702] [2021-11-12 23:25:38,737 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366833,366846] [2021-11-12 23:25:38,737 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366974,366987] [2021-11-12 23:25:38,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367112,367125] [2021-11-12 23:25:38,738 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367270,367283] [2021-11-12 23:25:38,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367429,367442] [2021-11-12 23:25:38,740 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367585,367598] [2021-11-12 23:25:38,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367734,367747] [2021-11-12 23:25:38,741 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367886,367899] [2021-11-12 23:25:38,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368037,368050] [2021-11-12 23:25:38,749 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368186,368199] [2021-11-12 23:25:38,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368338,368351] [2021-11-12 23:25:38,750 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368486,368499] [2021-11-12 23:25:38,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368639,368652] [2021-11-12 23:25:38,751 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368790,368803] [2021-11-12 23:25:38,752 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368940,368953] [2021-11-12 23:25:38,752 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369087,369100] [2021-11-12 23:25:38,753 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369238,369251] [2021-11-12 23:25:38,753 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369389,369402] [2021-11-12 23:25:38,755 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369537,369550] [2021-11-12 23:25:38,756 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369703,369716] [2021-11-12 23:25:38,757 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369872,369885] [2021-11-12 23:25:38,758 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370039,370052] [2021-11-12 23:25:38,759 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370207,370220] [2021-11-12 23:25:38,759 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370357,370370] [2021-11-12 23:25:38,760 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370504,370517] [2021-11-12 23:25:38,760 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370665,370678] [2021-11-12 23:25:38,761 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370835,370848] [2021-11-12 23:25:38,761 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370997,371010] [2021-11-12 23:25:38,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:38,811 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 23:25:39,481 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357609,357622] [2021-11-12 23:25:39,482 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357754,357767] [2021-11-12 23:25:39,482 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[357900,357913] [2021-11-12 23:25:39,482 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358065,358078] [2021-11-12 23:25:39,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358223,358236] [2021-11-12 23:25:39,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358381,358394] [2021-11-12 23:25:39,484 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358539,358552] [2021-11-12 23:25:39,484 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358699,358712] [2021-11-12 23:25:39,485 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358858,358871] [2021-11-12 23:25:39,485 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[358997,359010] [2021-11-12 23:25:39,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359139,359152] [2021-11-12 23:25:39,486 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359288,359301] [2021-11-12 23:25:39,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359427,359440] [2021-11-12 23:25:39,487 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359582,359595] [2021-11-12 23:25:39,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359742,359755] [2021-11-12 23:25:39,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[359893,359906] [2021-11-12 23:25:39,488 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360044,360057] [2021-11-12 23:25:39,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360196,360209] [2021-11-12 23:25:39,489 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360345,360358] [2021-11-12 23:25:39,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360493,360506] [2021-11-12 23:25:39,490 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360650,360663] [2021-11-12 23:25:39,491 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360799,360812] [2021-11-12 23:25:39,492 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[360955,360968] [2021-11-12 23:25:39,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361108,361121] [2021-11-12 23:25:39,493 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361254,361267] [2021-11-12 23:25:39,494 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361397,361410] [2021-11-12 23:25:39,496 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361549,361562] [2021-11-12 23:25:39,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361695,361708] [2021-11-12 23:25:39,497 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361840,361853] [2021-11-12 23:25:39,499 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[361994,362007] [2021-11-12 23:25:39,499 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362145,362158] [2021-11-12 23:25:39,500 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362300,362313] [2021-11-12 23:25:39,500 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362452,362465] [2021-11-12 23:25:39,501 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362607,362620] [2021-11-12 23:25:39,501 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362771,362784] [2021-11-12 23:25:39,502 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[362927,362940] [2021-11-12 23:25:39,502 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363091,363104] [2021-11-12 23:25:39,503 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363233,363246] [2021-11-12 23:25:39,504 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363391,363404] [2021-11-12 23:25:39,505 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363558,363571] [2021-11-12 23:25:39,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363717,363730] [2021-11-12 23:25:39,506 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[363876,363889] [2021-11-12 23:25:39,507 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364025,364038] [2021-11-12 23:25:39,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364172,364185] [2021-11-12 23:25:39,509 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364311,364324] [2021-11-12 23:25:39,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364474,364487] [2021-11-12 23:25:39,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364640,364653] [2021-11-12 23:25:39,510 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364804,364817] [2021-11-12 23:25:39,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[364969,364982] [2021-11-12 23:25:39,511 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365134,365147] [2021-11-12 23:25:39,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365300,365313] [2021-11-12 23:25:39,512 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365465,365478] [2021-11-12 23:25:39,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365632,365645] [2021-11-12 23:25:39,513 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365792,365805] [2021-11-12 23:25:39,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[365954,365967] [2021-11-12 23:25:39,514 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366113,366126] [2021-11-12 23:25:39,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366259,366272] [2021-11-12 23:25:39,515 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366402,366415] [2021-11-12 23:25:39,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366546,366559] [2021-11-12 23:25:39,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366689,366702] [2021-11-12 23:25:39,516 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366833,366846] [2021-11-12 23:25:39,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[366974,366987] [2021-11-12 23:25:39,517 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367112,367125] [2021-11-12 23:25:39,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367270,367283] [2021-11-12 23:25:39,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367429,367442] [2021-11-12 23:25:39,518 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367585,367598] [2021-11-12 23:25:39,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367734,367747] [2021-11-12 23:25:39,519 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[367886,367899] [2021-11-12 23:25:39,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368037,368050] [2021-11-12 23:25:39,520 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368186,368199] [2021-11-12 23:25:39,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368338,368351] [2021-11-12 23:25:39,521 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368486,368499] [2021-11-12 23:25:39,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368639,368652] [2021-11-12 23:25:39,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368790,368803] [2021-11-12 23:25:39,522 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[368940,368953] [2021-11-12 23:25:39,523 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369087,369100] [2021-11-12 23:25:39,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369238,369251] [2021-11-12 23:25:39,524 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369389,369402] [2021-11-12 23:25:39,525 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369537,369550] [2021-11-12 23:25:39,528 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369703,369716] [2021-11-12 23:25:39,534 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[369872,369885] [2021-11-12 23:25:39,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370039,370052] [2021-11-12 23:25:39,535 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370207,370220] [2021-11-12 23:25:39,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370357,370370] [2021-11-12 23:25:39,536 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370504,370517] [2021-11-12 23:25:39,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370665,370678] [2021-11-12 23:25:39,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370835,370848] [2021-11-12 23:25:39,537 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/sv-benchmarks/c/ldv-linux-4.0-rc1-mav/linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i[370997,371010] [2021-11-12 23:25:39,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 23:25:40,021 INFO L208 MainTranslator]: Completed translation [2021-11-12 23:25:40,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40 WrapperNode [2021-11-12 23:25:40,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 23:25:40,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 23:25:40,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 23:25:40,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 23:25:40,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 23:25:40,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 23:25:40,538 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 23:25:40,538 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 23:25:40,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:40,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:41,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 23:25:41,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 23:25:41,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 23:25:41,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 23:25:41,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (1/1) ... [2021-11-12 23:25:41,048 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 23:25:41,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 23:25:41,080 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 23:25:41,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 23:25:41,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 23:25:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_coherent_check_final_state [2021-11-12 23:25:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-12 23:25:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-12 23:25:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-12 23:25:41,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-12 23:25:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 23:25:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_mmc_sdio_func_check_final_state [2021-11-12 23:25:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_capture_close [2021-11-12 23:25:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_capture_close [2021-11-12 23:25:41,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_arch_io_check_final_state [2021-11-12 23:25:41,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_arch_io_check_final_state [2021-11-12 23:25:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 23:25:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_module_check_final_state [2021-11-12 23:25:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure vx_alloc_pipe [2021-11-12 23:25:41,142 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_alloc_pipe [2021-11-12 23:25:41,142 INFO L130 BoogieDeclarations]: Found specification of procedure snd_vx_outl [2021-11-12 23:25:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_vx_outl [2021-11-12 23:25:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2021-11-12 23:25:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~C_INT~TO~VOID [2021-11-12 23:25:41,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-12 23:25:41,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-12 23:25:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_differed_time [2021-11-12 23:25:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_differed_time [2021-11-12 23:25:41,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-12 23:25:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-12 23:25:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_queue_check_final_state [2021-11-12 23:25:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_queue_check_final_state [2021-11-12 23:25:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure snd_vx_outb [2021-11-12 23:25:41,145 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_vx_outb [2021-11-12 23:25:41,145 INFO L130 BoogieDeclarations]: Found specification of procedure vx_send_msg [2021-11-12 23:25:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_send_msg [2021-11-12 23:25:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 23:25:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_get_vmalloc_page [2021-11-12 23:25:41,146 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_get_vmalloc_page [2021-11-12 23:25:41,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 23:25:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-12 23:25:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-12 23:25:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_request_check_final_state [2021-11-12 23:25:41,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_request_check_final_state [2021-11-12 23:25:41,147 INFO L130 BoogieDeclarations]: Found specification of procedure vx_send_irq_dsp [2021-11-12 23:25:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_send_irq_dsp [2021-11-12 23:25:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_pipe_cmd_params [2021-11-12 23:25:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_pipe_cmd_params [2021-11-12 23:25:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_vx_core [2021-11-12 23:25:41,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_lock_lock_of_vx_core [2021-11-12 23:25:41,148 INFO L130 BoogieDeclarations]: Found specification of procedure vx_adjust_audio_level [2021-11-12 23:25:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_adjust_audio_level [2021-11-12 23:25:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure vx_change_clock_source [2021-11-12 23:25:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_change_clock_source [2021-11-12 23:25:41,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_in_interrupt_context [2021-11-12 23:25:41,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_in_interrupt_context [2021-11-12 23:25:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-12 23:25:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-12 23:25:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 23:25:41,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_bh_check_final_state [2021-11-12 23:25:41,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 23:25:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_block_genhd_check_final_state [2021-11-12 23:25:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure vx_transfer_end [2021-11-12 23:25:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_transfer_end [2021-11-12 23:25:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-12 23:25:41,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-12 23:25:41,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 23:25:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_register_reset_error_counter [2021-11-12 23:25:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-12 23:25:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-12 23:25:41,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-12 23:25:41,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-12 23:25:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure vx_sync_audio_source [2021-11-12 23:25:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_sync_audio_source [2021-11-12 23:25:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 23:25:41,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_lib_idr_check_final_state [2021-11-12 23:25:41,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 23:25:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_srcu_check_final_state [2021-11-12 23:25:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure vx_stop_stream [2021-11-12 23:25:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_stop_stream [2021-11-12 23:25:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-12 23:25:41,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-12 23:25:41,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-12 23:25:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-12 23:25:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-12 23:25:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure vx_query_hbuffer_size [2021-11-12 23:25:41,155 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_query_hbuffer_size [2021-11-12 23:25:41,155 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-12 23:25:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-12 23:25:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-12 23:25:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_capture_open [2021-11-12 23:25:41,156 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_capture_open [2021-11-12 23:25:41,156 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_codec_reg [2021-11-12 23:25:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_codec_reg [2021-11-12 23:25:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_clock [2021-11-12 23:25:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_clock [2021-11-12 23:25:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_monitor_level [2021-11-12 23:25:41,157 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_monitor_level [2021-11-12 23:25:41,157 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-12 23:25:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-12 23:25:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 23:25:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_register_reset_error_counter [2021-11-12 23:25:41,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 23:25:41,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 23:25:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-12 23:25:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-12 23:25:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 23:25:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-12 23:25:41,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-12 23:25:41,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-12 23:25:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure vx_free_pipe [2021-11-12 23:25:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_free_pipe [2021-11-12 23:25:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_stream_cmd_params [2021-11-12 23:25:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_stream_cmd_params [2021-11-12 23:25:41,160 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_hw_constraint_step [2021-11-12 23:25:41,160 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_hw_constraint_step [2021-11-12 23:25:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_hw_params [2021-11-12 23:25:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_hw_params [2021-11-12 23:25:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_vx_core [2021-11-12 23:25:41,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_mutex_mutex_unlock_lock_of_vx_core [2021-11-12 23:25:41,161 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_playback_open [2021-11-12 23:25:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_playback_open [2021-11-12 23:25:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-12 23:25:41,162 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-12 23:25:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~X~C_UINT~TO~VOID [2021-11-12 23:25:41,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~X~C_UINT~TO~VOID [2021-11-12 23:25:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure vx_toggle_dac_mute [2021-11-12 23:25:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_toggle_dac_mute [2021-11-12 23:25:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_sock_check_final_state [2021-11-12 23:25:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_sock_check_final_state [2021-11-12 23:25:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure vx_reset_chk [2021-11-12 23:25:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_reset_chk [2021-11-12 23:25:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 23:25:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_gadget_check_final_state [2021-11-12 23:25:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 23:25:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 23:25:41,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_sysfs_check_final_state [2021-11-12 23:25:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure vx_send_rih_nolock [2021-11-12 23:25:41,166 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_send_rih_nolock [2021-11-12 23:25:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-12 23:25:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-12 23:25:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-12 23:25:41,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-12 23:25:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 23:25:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-12 23:25:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-12 23:25:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-12 23:25:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 23:25:41,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_net_rtnetlink_check_final_state [2021-11-12 23:25:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_trigger [2021-11-12 23:25:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_trigger [2021-11-12 23:25:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-12 23:25:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-12 23:25:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure vx_get_pipe_state [2021-11-12 23:25:41,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_get_pipe_state [2021-11-12 23:25:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-12 23:25:41,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-12 23:25:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_playback_close [2021-11-12 23:25:41,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_playback_close [2021-11-12 23:25:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 23:25:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_check_final_state [2021-11-12 23:25:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:25:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-12 23:25:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 23:25:41,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_usb_urb_check_final_state [2021-11-12 23:25:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure vx_send_rih [2021-11-12 23:25:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_send_rih [2021-11-12 23:25:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure vx_send_msg_nolock [2021-11-12 23:25:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_send_msg_nolock [2021-11-12 23:25:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 23:25:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_locking_rwlock_check_final_state [2021-11-12 23:25:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-12 23:25:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-12 23:25:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:25:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-12 23:25:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure vx_update_pipe_position [2021-11-12 23:25:41,172 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_update_pipe_position [2021-11-12 23:25:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 23:25:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_fs_char_dev_check_final_state [2021-11-12 23:25:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_playback_transfer [2021-11-12 23:25:41,173 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_playback_transfer [2021-11-12 23:25:41,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-12 23:25:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-12 23:25:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_prepare [2021-11-12 23:25:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_prepare [2021-11-12 23:25:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 23:25:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_drivers_base_class_check_final_state [2021-11-12 23:25:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure vx_pcm_hw_free [2021-11-12 23:25:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_pcm_hw_free [2021-11-12 23:25:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure frames_to_bytes [2021-11-12 23:25:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure frames_to_bytes [2021-11-12 23:25:41,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 23:25:41,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~VOID [2021-11-12 23:25:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure snd_vx_inb [2021-11-12 23:25:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_vx_inb [2021-11-12 23:25:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-12 23:25:41,176 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-12 23:25:41,176 INFO L130 BoogieDeclarations]: Found specification of procedure snd_vx_check_reg_bit [2021-11-12 23:25:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_vx_check_reg_bit [2021-11-12 23:25:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure vx_toggle_pipe [2021-11-12 23:25:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_toggle_pipe [2021-11-12 23:25:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-12 23:25:41,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-12 23:25:41,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 23:25:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_linux_kernel_rcu_update_lock_sched_check_final_state [2021-11-12 23:25:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure vx_set_internal_clock [2021-11-12 23:25:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_set_internal_clock [2021-11-12 23:25:41,178 INFO L130 BoogieDeclarations]: Found specification of procedure vx_init_rmh [2021-11-12 23:25:41,178 INFO L138 BoogieDeclarations]: Found implementation of procedure vx_init_rmh [2021-11-12 23:25:42,575 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-12 23:26:28,327 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 23:26:28,328 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-12 23:26:28,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:26:28 BoogieIcfgContainer [2021-11-12 23:26:28,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 23:26:28,336 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 23:26:28,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 23:26:28,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 23:26:28,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 11:25:32" (1/3) ... [2021-11-12 23:26:28,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b7abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:26:28, skipping insertion in model container [2021-11-12 23:26:28,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 11:25:40" (2/3) ... [2021-11-12 23:26:28,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@227b7abd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 11:26:28, skipping insertion in model container [2021-11-12 23:26:28,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 11:26:28" (3/3) ... [2021-11-12 23:26:28,343 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.0-rc1---sound--drivers--vx--snd-vx-lib.ko.cil.i [2021-11-12 23:26:28,350 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 23:26:28,350 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 25 error locations. [2021-11-12 23:26:28,420 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 23:26:28,427 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 [2021-11-12 23:26:28,428 INFO L340 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2021-11-12 23:26:28,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 1263 states, 833 states have (on average 1.3001200480192077) internal successors, (1083), 877 states have internal predecessors, (1083), 314 states have call successors, (314), 93 states have call predecessors, (314), 92 states have return successors, (310), 309 states have call predecessors, (310), 310 states have call successors, (310) [2021-11-12 23:26:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-12 23:26:28,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:28,494 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:26:28,495 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 23 more)] === [2021-11-12 23:26:28,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1314817710, now seen corresponding path program 1 times [2021-11-12 23:26:28,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:28,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545520635] [2021-11-12 23:26:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:28,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:28,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:28,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:28,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 23:26:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:39,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-12 23:26:39,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:26:41,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-12 23:26:42,758 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:42,758 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545520635] [2021-11-12 23:26:42,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [545520635] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:42,759 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:42,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14, 14] imperfect sequences [] total 17 [2021-11-12 23:26:42,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204217283] [2021-11-12 23:26:42,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:42,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-12 23:26:42,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:42,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-12 23:26:42,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2021-11-12 23:26:42,820 INFO L87 Difference]: Start difference. First operand has 1263 states, 833 states have (on average 1.3001200480192077) internal successors, (1083), 877 states have internal predecessors, (1083), 314 states have call successors, (314), 93 states have call predecessors, (314), 92 states have return successors, (310), 309 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 17 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-12 23:26:46,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:46,247 INFO L93 Difference]: Finished difference Result 2457 states and 3407 transitions. [2021-11-12 23:26:46,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:26:46,251 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) Word has length 49 [2021-11-12 23:26:46,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:46,287 INFO L225 Difference]: With dead ends: 2457 [2021-11-12 23:26:46,287 INFO L226 Difference]: Without dead ends: 1222 [2021-11-12 23:26:46,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2021-11-12 23:26:46,310 INFO L933 BasicCegarLoop]: 1599 mSDtfsCounter, 871 mSDsluCounter, 16315 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1835.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 17914 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.30ms SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1986.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:46,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [871 Valid, 17914 Invalid, 708 Unknown, 0 Unchecked, 78.30ms Time], IncrementalHoareTripleChecker [452 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 1986.64ms Time] [2021-11-12 23:26:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1222 states. [2021-11-12 23:26:46,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1222 to 1220. [2021-11-12 23:26:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1220 states, 817 states have (on average 1.266829865361077) internal successors, (1035), 855 states have internal predecessors, (1035), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:26:46,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1220 states to 1220 states and 1608 transitions. [2021-11-12 23:26:46,499 INFO L78 Accepts]: Start accepts. Automaton has 1220 states and 1608 transitions. Word has length 49 [2021-11-12 23:26:46,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:46,501 INFO L470 AbstractCegarLoop]: Abstraction has 1220 states and 1608 transitions. [2021-11-12 23:26:46,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 7 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 6 states have call successors, (9) [2021-11-12 23:26:46,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1220 states and 1608 transitions. [2021-11-12 23:26:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-12 23:26:46,505 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:46,505 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:26:46,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:46,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:46,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === 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 23 more)] === [2021-11-12 23:26:46,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash -526977641, now seen corresponding path program 1 times [2021-11-12 23:26:46,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:46,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4545979] [2021-11-12 23:26:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:46,746 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:46,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:46,747 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:46,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 23:26:57,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:26:57,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 3178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:26:57,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:26:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:26:58,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:26:59,001 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:26:59,001 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:26:59,002 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4545979] [2021-11-12 23:26:59,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [4545979] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:26:59,002 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:26:59,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:26:59,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289136117] [2021-11-12 23:26:59,002 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:26:59,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:26:59,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:26:59,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:26:59,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:26:59,005 INFO L87 Difference]: Start difference. First operand 1220 states and 1608 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 23:26:59,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:26:59,231 INFO L93 Difference]: Finished difference Result 1220 states and 1608 transitions. [2021-11-12 23:26:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:26:59,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 57 [2021-11-12 23:26:59,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:26:59,247 INFO L225 Difference]: With dead ends: 1220 [2021-11-12 23:26:59,248 INFO L226 Difference]: Without dead ends: 1218 [2021-11-12 23:26:59,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:26:59,250 INFO L933 BasicCegarLoop]: 1604 mSDtfsCounter, 1565 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.86ms IncrementalHoareTripleChecker+Time [2021-11-12 23:26:59,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1566 Valid, 3206 Invalid, 2 Unknown, 0 Unchecked, 14.95ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.86ms Time] [2021-11-12 23:26:59,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2021-11-12 23:26:59,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2021-11-12 23:26:59,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 816 states have (on average 1.2659313725490196) internal successors, (1033), 853 states have internal predecessors, (1033), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:26:59,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1606 transitions. [2021-11-12 23:26:59,375 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1606 transitions. Word has length 57 [2021-11-12 23:26:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:26:59,376 INFO L470 AbstractCegarLoop]: Abstraction has 1218 states and 1606 transitions. [2021-11-12 23:26:59,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-12 23:26:59,377 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1606 transitions. [2021-11-12 23:26:59,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-12 23:26:59,380 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:26:59,380 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:26:59,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 23:26:59,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:26:59,586 INFO L402 AbstractCegarLoop]: === Iteration 3 === 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 23 more)] === [2021-11-12 23:26:59,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:26:59,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1552499144, now seen corresponding path program 1 times [2021-11-12 23:26:59,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:26:59,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681654721] [2021-11-12 23:26:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:26:59,598 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:26:59,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:26:59,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:26:59,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-12 23:27:10,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:10,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 3187 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:27:10,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:11,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:12,167 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:12,167 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681654721] [2021-11-12 23:27:12,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681654721] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:12,168 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:12,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:27:12,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834190049] [2021-11-12 23:27:12,169 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:12,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:12,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:12,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:12,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:12,170 INFO L87 Difference]: Start difference. First operand 1218 states and 1606 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:27:12,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:12,335 INFO L93 Difference]: Finished difference Result 1218 states and 1606 transitions. [2021-11-12 23:27:12,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:12,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 63 [2021-11-12 23:27:12,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:12,352 INFO L225 Difference]: With dead ends: 1218 [2021-11-12 23:27:12,352 INFO L226 Difference]: Without dead ends: 1216 [2021-11-12 23:27:12,354 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:12,357 INFO L933 BasicCegarLoop]: 1602 mSDtfsCounter, 1557 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 3202 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.69ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.95ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:12,360 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1558 Valid, 3202 Invalid, 2 Unknown, 0 Unchecked, 11.69ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.95ms Time] [2021-11-12 23:27:12,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2021-11-12 23:27:12,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2021-11-12 23:27:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 815 states have (on average 1.2650306748466258) internal successors, (1031), 851 states have internal predecessors, (1031), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:27:12,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1604 transitions. [2021-11-12 23:27:12,475 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1604 transitions. Word has length 63 [2021-11-12 23:27:12,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:12,477 INFO L470 AbstractCegarLoop]: Abstraction has 1216 states and 1604 transitions. [2021-11-12 23:27:12,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2021-11-12 23:27:12,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1604 transitions. [2021-11-12 23:27:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-12 23:27:12,485 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:12,486 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:27:12,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:12,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:12,700 INFO L402 AbstractCegarLoop]: === Iteration 4 === 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 23 more)] === [2021-11-12 23:27:12,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:12,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1648915194, now seen corresponding path program 1 times [2021-11-12 23:27:12,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:12,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93467272] [2021-11-12 23:27:12,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:12,707 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:12,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:12,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:12,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 23:27:23,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:23,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 3196 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:27:23,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:24,266 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:24,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:24,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:24,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:24,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93467272] [2021-11-12 23:27:24,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [93467272] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:24,707 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:24,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:27:24,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587153238] [2021-11-12 23:27:24,708 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:24,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:24,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:24,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:24,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:24,710 INFO L87 Difference]: Start difference. First operand 1216 states and 1604 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-12 23:27:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:24,879 INFO L93 Difference]: Finished difference Result 1216 states and 1604 transitions. [2021-11-12 23:27:24,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:24,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 69 [2021-11-12 23:27:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:24,891 INFO L225 Difference]: With dead ends: 1216 [2021-11-12 23:27:24,891 INFO L226 Difference]: Without dead ends: 1214 [2021-11-12 23:27:24,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:24,895 INFO L933 BasicCegarLoop]: 1600 mSDtfsCounter, 1546 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 4796 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.87ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:24,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1547 Valid, 4796 Invalid, 2 Unknown, 0 Unchecked, 11.87ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 11.80ms Time] [2021-11-12 23:27:24,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2021-11-12 23:27:24,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1214. [2021-11-12 23:27:24,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1214 states, 814 states have (on average 1.2641277641277642) internal successors, (1029), 849 states have internal predecessors, (1029), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:27:24,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1214 states to 1214 states and 1602 transitions. [2021-11-12 23:27:24,996 INFO L78 Accepts]: Start accepts. Automaton has 1214 states and 1602 transitions. Word has length 69 [2021-11-12 23:27:24,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:24,999 INFO L470 AbstractCegarLoop]: Abstraction has 1214 states and 1602 transitions. [2021-11-12 23:27:24,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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) [2021-11-12 23:27:24,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1214 states and 1602 transitions. [2021-11-12 23:27:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-12 23:27:25,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:25,004 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:27:25,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:25,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:25,217 INFO L402 AbstractCegarLoop]: === Iteration 5 === 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 23 more)] === [2021-11-12 23:27:25,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:25,218 INFO L85 PathProgramCache]: Analyzing trace with hash -902227945, now seen corresponding path program 1 times [2021-11-12 23:27:25,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:25,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426622304] [2021-11-12 23:27:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:25,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:25,228 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:25,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-12 23:27:34,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:34,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 3205 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:27:34,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:35,726 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:35,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:36,221 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:36,221 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:36,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426622304] [2021-11-12 23:27:36,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426622304] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:36,222 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:36,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:27:36,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121912243] [2021-11-12 23:27:36,222 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:36,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:36,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:36,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:36,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:36,223 INFO L87 Difference]: Start difference. First operand 1214 states and 1602 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2021-11-12 23:27:36,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:36,397 INFO L93 Difference]: Finished difference Result 1214 states and 1602 transitions. [2021-11-12 23:27:36,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:36,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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 75 [2021-11-12 23:27:36,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:36,408 INFO L225 Difference]: With dead ends: 1214 [2021-11-12 23:27:36,409 INFO L226 Difference]: Without dead ends: 1212 [2021-11-12 23:27:36,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:36,411 INFO L933 BasicCegarLoop]: 1598 mSDtfsCounter, 1538 mSDsluCounter, 3192 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 4790 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.42ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.14ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:36,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1539 Valid, 4790 Invalid, 2 Unknown, 0 Unchecked, 11.42ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 19.14ms Time] [2021-11-12 23:27:36,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2021-11-12 23:27:36,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 1212. [2021-11-12 23:27:36,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 813 states have (on average 1.2632226322263223) internal successors, (1027), 847 states have internal predecessors, (1027), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:27:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1600 transitions. [2021-11-12 23:27:36,508 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1600 transitions. Word has length 75 [2021-11-12 23:27:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:36,508 INFO L470 AbstractCegarLoop]: Abstraction has 1212 states and 1600 transitions. [2021-11-12 23:27:36,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 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) [2021-11-12 23:27:36,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1600 transitions. [2021-11-12 23:27:36,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-12 23:27:36,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:36,511 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:27:36,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:36,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:36,726 INFO L402 AbstractCegarLoop]: === Iteration 6 === 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 23 more)] === [2021-11-12 23:27:36,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:36,726 INFO L85 PathProgramCache]: Analyzing trace with hash -701435217, now seen corresponding path program 1 times [2021-11-12 23:27:36,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:36,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492490417] [2021-11-12 23:27:36,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:36,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:36,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:36,731 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:36,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 23:27:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:46,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 3214 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:27:46,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:47,305 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:47,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:47,763 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:47,763 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:47,763 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492490417] [2021-11-12 23:27:47,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [492490417] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:47,763 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:47,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:27:47,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809260639] [2021-11-12 23:27:47,764 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:47,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:47,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:47,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:47,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:47,765 INFO L87 Difference]: Start difference. First operand 1212 states and 1600 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:27:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:47,929 INFO L93 Difference]: Finished difference Result 1212 states and 1600 transitions. [2021-11-12 23:27:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:47,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 81 [2021-11-12 23:27:47,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:47,940 INFO L225 Difference]: With dead ends: 1212 [2021-11-12 23:27:47,941 INFO L226 Difference]: Without dead ends: 1210 [2021-11-12 23:27:47,942 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:47,943 INFO L933 BasicCegarLoop]: 1596 mSDtfsCounter, 1530 mSDsluCounter, 3188 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 4784 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:47,943 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 4784 Invalid, 2 Unknown, 0 Unchecked, 11.94ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.02ms Time] [2021-11-12 23:27:47,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2021-11-12 23:27:48,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2021-11-12 23:27:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 812 states have (on average 1.2623152709359606) internal successors, (1025), 845 states have internal predecessors, (1025), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:27:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1598 transitions. [2021-11-12 23:27:48,042 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1598 transitions. Word has length 81 [2021-11-12 23:27:48,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:48,043 INFO L470 AbstractCegarLoop]: Abstraction has 1210 states and 1598 transitions. [2021-11-12 23:27:48,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-11-12 23:27:48,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1598 transitions. [2021-11-12 23:27:48,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-12 23:27:48,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:48,045 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:27:48,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 23:27:48,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:27:48,269 INFO L402 AbstractCegarLoop]: === Iteration 7 === 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 23 more)] === [2021-11-12 23:27:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:27:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash 659780469, now seen corresponding path program 1 times [2021-11-12 23:27:48,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:27:48,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933507600] [2021-11-12 23:27:48,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:27:48,278 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:27:48,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:27:48,279 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:27:48,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 23:27:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:27:58,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 3223 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:27:58,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:27:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:59,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:27:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:27:59,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:27:59,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [933507600] [2021-11-12 23:27:59,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [933507600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:27:59,701 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:27:59,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:27:59,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870744536] [2021-11-12 23:27:59,701 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:27:59,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:27:59,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:27:59,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:27:59,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:27:59,703 INFO L87 Difference]: Start difference. First operand 1210 states and 1598 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 23:27:59,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:27:59,859 INFO L93 Difference]: Finished difference Result 1210 states and 1598 transitions. [2021-11-12 23:27:59,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:27:59,860 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 87 [2021-11-12 23:27:59,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:27:59,869 INFO L225 Difference]: With dead ends: 1210 [2021-11-12 23:27:59,869 INFO L226 Difference]: Without dead ends: 1208 [2021-11-12 23:27:59,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:27:59,872 INFO L933 BasicCegarLoop]: 1594 mSDtfsCounter, 1525 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 3186 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:27:59,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1526 Valid, 3186 Invalid, 2 Unknown, 0 Unchecked, 7.81ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 13.00ms Time] [2021-11-12 23:27:59,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2021-11-12 23:27:59,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2021-11-12 23:27:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 811 states have (on average 1.2614056720098643) internal successors, (1023), 843 states have internal predecessors, (1023), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:27:59,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1596 transitions. [2021-11-12 23:27:59,974 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1596 transitions. Word has length 87 [2021-11-12 23:27:59,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:27:59,975 INFO L470 AbstractCegarLoop]: Abstraction has 1208 states and 1596 transitions. [2021-11-12 23:27:59,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-12 23:27:59,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1596 transitions. [2021-11-12 23:27:59,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-12 23:27:59,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:27:59,983 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:28:00,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:00,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:00,200 INFO L402 AbstractCegarLoop]: === Iteration 8 === 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 23 more)] === [2021-11-12 23:28:00,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:00,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1606073852, now seen corresponding path program 1 times [2021-11-12 23:28:00,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:00,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546648832] [2021-11-12 23:28:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:00,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:00,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:00,208 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:00,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-12 23:28:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:10,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 3232 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:10,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:11,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:11,778 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:11,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546648832] [2021-11-12 23:28:11,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1546648832] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:11,778 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:11,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:28:11,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992176791] [2021-11-12 23:28:11,779 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:11,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:11,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:11,781 INFO L87 Difference]: Start difference. First operand 1208 states and 1596 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:28:11,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:11,948 INFO L93 Difference]: Finished difference Result 1208 states and 1596 transitions. [2021-11-12 23:28:11,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:11,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 93 [2021-11-12 23:28:11,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:11,960 INFO L225 Difference]: With dead ends: 1208 [2021-11-12 23:28:11,960 INFO L226 Difference]: Without dead ends: 1206 [2021-11-12 23:28:11,961 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:11,962 INFO L933 BasicCegarLoop]: 1592 mSDtfsCounter, 1514 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 4772 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.02ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:11,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1515 Valid, 4772 Invalid, 2 Unknown, 0 Unchecked, 10.02ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.22ms Time] [2021-11-12 23:28:11,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2021-11-12 23:28:12,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1206. [2021-11-12 23:28:12,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 810 states have (on average 1.2604938271604937) internal successors, (1021), 841 states have internal predecessors, (1021), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:28:12,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1594 transitions. [2021-11-12 23:28:12,071 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1594 transitions. Word has length 93 [2021-11-12 23:28:12,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:12,071 INFO L470 AbstractCegarLoop]: Abstraction has 1206 states and 1594 transitions. [2021-11-12 23:28:12,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-12 23:28:12,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1594 transitions. [2021-11-12 23:28:12,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-12 23:28:12,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:12,074 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:28:12,181 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-12 23:28:12,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:12,297 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:28:12,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:12,298 INFO L85 PathProgramCache]: Analyzing trace with hash -112717179, now seen corresponding path program 1 times [2021-11-12 23:28:12,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:12,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977657671] [2021-11-12 23:28:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:12,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:12,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:12,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:12,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-12 23:28:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:22,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 3241 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:22,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:23,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:24,298 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:24,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:24,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977657671] [2021-11-12 23:28:24,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977657671] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:24,299 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:24,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:28:24,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730890521] [2021-11-12 23:28:24,299 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:24,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:24,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:24,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:24,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:24,301 INFO L87 Difference]: Start difference. First operand 1206 states and 1594 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:28:24,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:24,468 INFO L93 Difference]: Finished difference Result 1206 states and 1594 transitions. [2021-11-12 23:28:24,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:24,469 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 99 [2021-11-12 23:28:24,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:24,479 INFO L225 Difference]: With dead ends: 1206 [2021-11-12 23:28:24,480 INFO L226 Difference]: Without dead ends: 1204 [2021-11-12 23:28:24,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:24,484 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 1510 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 4758 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.58ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:24,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 4758 Invalid, 2 Unknown, 0 Unchecked, 9.89ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.58ms Time] [2021-11-12 23:28:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2021-11-12 23:28:24,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1204. [2021-11-12 23:28:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 809 states have (on average 1.2595797280593326) internal successors, (1019), 839 states have internal predecessors, (1019), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:28:24,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1592 transitions. [2021-11-12 23:28:24,593 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1592 transitions. Word has length 99 [2021-11-12 23:28:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:24,594 INFO L470 AbstractCegarLoop]: Abstraction has 1204 states and 1592 transitions. [2021-11-12 23:28:24,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:28:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1592 transitions. [2021-11-12 23:28:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-12 23:28:24,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:24,596 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:28:24,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:24,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:24,821 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:28:24,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:24,822 INFO L85 PathProgramCache]: Analyzing trace with hash -946886712, now seen corresponding path program 1 times [2021-11-12 23:28:24,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:24,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55480189] [2021-11-12 23:28:24,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:24,826 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:24,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:24,829 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:24,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-12 23:28:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:34,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 3244 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:34,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:35,859 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:35,860 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:36,370 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:36,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55480189] [2021-11-12 23:28:36,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55480189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:36,371 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:36,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:28:36,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611739244] [2021-11-12 23:28:36,371 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:36,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:36,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:36,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:36,372 INFO L87 Difference]: Start difference. First operand 1204 states and 1592 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:28:36,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:36,507 INFO L93 Difference]: Finished difference Result 1204 states and 1592 transitions. [2021-11-12 23:28:36,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:36,508 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 101 [2021-11-12 23:28:36,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:36,517 INFO L225 Difference]: With dead ends: 1204 [2021-11-12 23:28:36,517 INFO L226 Difference]: Without dead ends: 1202 [2021-11-12 23:28:36,518 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:36,519 INFO L933 BasicCegarLoop]: 1588 mSDtfsCounter, 1502 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 4760 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.45ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.91ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:36,519 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 4760 Invalid, 2 Unknown, 0 Unchecked, 8.45ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 8.91ms Time] [2021-11-12 23:28:36,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2021-11-12 23:28:36,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2021-11-12 23:28:36,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 808 states have (on average 1.2586633663366336) internal successors, (1017), 837 states have internal predecessors, (1017), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:28:36,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1590 transitions. [2021-11-12 23:28:36,618 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1590 transitions. Word has length 101 [2021-11-12 23:28:36,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:36,618 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 1590 transitions. [2021-11-12 23:28:36,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-11-12 23:28:36,619 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1590 transitions. [2021-11-12 23:28:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-12 23:28:36,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:36,621 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-12 23:28:36,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:36,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:36,834 INFO L402 AbstractCegarLoop]: === Iteration 11 === 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 23 more)] === [2021-11-12 23:28:36,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:36,834 INFO L85 PathProgramCache]: Analyzing trace with hash -783313956, now seen corresponding path program 1 times [2021-11-12 23:28:36,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:36,838 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235723826] [2021-11-12 23:28:36,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:36,839 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:36,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:36,840 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:36,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-12 23:28:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:46,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 3253 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:46,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:47,461 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:47,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:47,984 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:47,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235723826] [2021-11-12 23:28:47,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235723826] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:47,984 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:47,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:28:47,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797710796] [2021-11-12 23:28:47,984 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:47,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:47,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:47,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:47,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:47,986 INFO L87 Difference]: Start difference. First operand 1202 states and 1590 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:28:48,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:48,143 INFO L93 Difference]: Finished difference Result 1202 states and 1590 transitions. [2021-11-12 23:28:48,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:48,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 107 [2021-11-12 23:28:48,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:48,153 INFO L225 Difference]: With dead ends: 1202 [2021-11-12 23:28:48,153 INFO L226 Difference]: Without dead ends: 1200 [2021-11-12 23:28:48,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:48,155 INFO L933 BasicCegarLoop]: 1586 mSDtfsCounter, 1494 mSDsluCounter, 3168 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 4754 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.55ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:48,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1495 Valid, 4754 Invalid, 2 Unknown, 0 Unchecked, 8.56ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 21.55ms Time] [2021-11-12 23:28:48,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2021-11-12 23:28:48,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1200. [2021-11-12 23:28:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 807 states have (on average 1.257744733581165) internal successors, (1015), 835 states have internal predecessors, (1015), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:28:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1588 transitions. [2021-11-12 23:28:48,306 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1588 transitions. Word has length 107 [2021-11-12 23:28:48,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:28:48,307 INFO L470 AbstractCegarLoop]: Abstraction has 1200 states and 1588 transitions. [2021-11-12 23:28:48,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-12 23:28:48,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1588 transitions. [2021-11-12 23:28:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-12 23:28:48,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:28:48,309 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1] [2021-11-12 23:28:48,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-12 23:28:48,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:28:48,518 INFO L402 AbstractCegarLoop]: === Iteration 12 === 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 23 more)] === [2021-11-12 23:28:48,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:28:48,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1479017657, now seen corresponding path program 1 times [2021-11-12 23:28:48,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:28:48,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151698284] [2021-11-12 23:28:48,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:28:48,523 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:28:48,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:28:48,524 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:28:48,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-12 23:28:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:28:58,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 3262 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:28:58,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:28:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:59,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:28:59,803 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:28:59,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:28:59,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151698284] [2021-11-12 23:28:59,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151698284] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:28:59,804 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:28:59,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:28:59,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974521226] [2021-11-12 23:28:59,804 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:28:59,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:28:59,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:28:59,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:28:59,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:28:59,806 INFO L87 Difference]: Start difference. First operand 1200 states and 1588 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:28:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:28:59,945 INFO L93 Difference]: Finished difference Result 1200 states and 1588 transitions. [2021-11-12 23:28:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:28:59,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 113 [2021-11-12 23:28:59,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:28:59,954 INFO L225 Difference]: With dead ends: 1200 [2021-11-12 23:28:59,955 INFO L226 Difference]: Without dead ends: 1198 [2021-11-12 23:28:59,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:28:59,956 INFO L933 BasicCegarLoop]: 1584 mSDtfsCounter, 1489 mSDsluCounter, 1582 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1490 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.38ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.13ms IncrementalHoareTripleChecker+Time [2021-11-12 23:28:59,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1490 Valid, 3166 Invalid, 2 Unknown, 0 Unchecked, 6.38ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 9.13ms Time] [2021-11-12 23:28:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-11-12 23:29:00,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1198. [2021-11-12 23:29:00,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 806 states have (on average 1.2568238213399503) internal successors, (1013), 833 states have internal predecessors, (1013), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:29:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1586 transitions. [2021-11-12 23:29:00,064 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1586 transitions. Word has length 113 [2021-11-12 23:29:00,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:00,064 INFO L470 AbstractCegarLoop]: Abstraction has 1198 states and 1586 transitions. [2021-11-12 23:29:00,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-11-12 23:29:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1586 transitions. [2021-11-12 23:29:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-12 23:29:00,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:00,067 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:00,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:00,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:00,278 INFO L402 AbstractCegarLoop]: === Iteration 13 === 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 23 more)] === [2021-11-12 23:29:00,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:00,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1771347537, now seen corresponding path program 1 times [2021-11-12 23:29:00,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:00,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022863204] [2021-11-12 23:29:00,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:00,285 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:00,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:00,286 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:00,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-12 23:29:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:10,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 3271 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:10,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:11,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:11,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:11,796 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:11,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022863204] [2021-11-12 23:29:11,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022863204] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:11,797 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:11,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:29:11,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134268530] [2021-11-12 23:29:11,797 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:11,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:29:11,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:29:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:29:11,799 INFO L87 Difference]: Start difference. First operand 1198 states and 1586 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:29:11,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:11,963 INFO L93 Difference]: Finished difference Result 1198 states and 1586 transitions. [2021-11-12 23:29:11,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 119 [2021-11-12 23:29:11,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:11,972 INFO L225 Difference]: With dead ends: 1198 [2021-11-12 23:29:11,972 INFO L226 Difference]: Without dead ends: 1196 [2021-11-12 23:29:11,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:29:11,974 INFO L933 BasicCegarLoop]: 1582 mSDtfsCounter, 1481 mSDsluCounter, 1580 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.58ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:11,974 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 3162 Invalid, 2 Unknown, 0 Unchecked, 6.58ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 10.76ms Time] [2021-11-12 23:29:11,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2021-11-12 23:29:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1196. [2021-11-12 23:29:12,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 805 states have (on average 1.2559006211180124) internal successors, (1011), 831 states have internal predecessors, (1011), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:29:12,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1584 transitions. [2021-11-12 23:29:12,111 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1584 transitions. Word has length 119 [2021-11-12 23:29:12,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:12,111 INFO L470 AbstractCegarLoop]: Abstraction has 1196 states and 1584 transitions. [2021-11-12 23:29:12,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-12 23:29:12,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1584 transitions. [2021-11-12 23:29:12,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-12 23:29:12,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:12,115 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:12,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:12,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:12,337 INFO L402 AbstractCegarLoop]: === Iteration 14 === 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 23 more)] === [2021-11-12 23:29:12,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:12,338 INFO L85 PathProgramCache]: Analyzing trace with hash 818456681, now seen corresponding path program 1 times [2021-11-12 23:29:12,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:12,342 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522535104] [2021-11-12 23:29:12,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:12,343 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:12,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:12,343 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:12,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-12 23:29:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:22,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:22,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:23,515 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:23,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:24,072 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:24,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:24,073 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522535104] [2021-11-12 23:29:24,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522535104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:24,073 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:24,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:29:24,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79636388] [2021-11-12 23:29:24,073 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:24,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:29:24,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:29:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:29:24,074 INFO L87 Difference]: Start difference. First operand 1196 states and 1584 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 23:29:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:24,213 INFO L93 Difference]: Finished difference Result 1196 states and 1584 transitions. [2021-11-12 23:29:24,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 125 [2021-11-12 23:29:24,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:24,233 INFO L225 Difference]: With dead ends: 1196 [2021-11-12 23:29:24,233 INFO L226 Difference]: Without dead ends: 1194 [2021-11-12 23:29:24,234 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:29:24,235 INFO L933 BasicCegarLoop]: 1580 mSDtfsCounter, 1470 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1471 SdHoareTripleChecker+Valid, 4736 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.74ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.84ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:24,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1471 Valid, 4736 Invalid, 2 Unknown, 0 Unchecked, 6.74ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 8.84ms Time] [2021-11-12 23:29:24,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2021-11-12 23:29:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2021-11-12 23:29:24,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1194 states, 804 states have (on average 1.2549751243781095) internal successors, (1009), 829 states have internal predecessors, (1009), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:29:24,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1582 transitions. [2021-11-12 23:29:24,350 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1582 transitions. Word has length 125 [2021-11-12 23:29:24,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:24,351 INFO L470 AbstractCegarLoop]: Abstraction has 1194 states and 1582 transitions. [2021-11-12 23:29:24,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 5 states have internal predecessors, (138), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2021-11-12 23:29:24,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1582 transitions. [2021-11-12 23:29:24,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-11-12 23:29:24,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:24,354 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:24,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:24,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:24,568 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 23 more)] === [2021-11-12 23:29:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 867012218, now seen corresponding path program 1 times [2021-11-12 23:29:24,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:24,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1364204487] [2021-11-12 23:29:24,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:24,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:24,574 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:24,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-12 23:29:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:34,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 3289 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:34,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:35,609 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:35,609 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:36,208 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:36,208 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:36,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1364204487] [2021-11-12 23:29:36,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1364204487] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:36,209 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:36,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:29:36,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167677297] [2021-11-12 23:29:36,209 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:36,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:29:36,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:36,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:29:36,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:29:36,211 INFO L87 Difference]: Start difference. First operand 1194 states and 1582 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:29:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:36,374 INFO L93 Difference]: Finished difference Result 1194 states and 1582 transitions. [2021-11-12 23:29:36,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 131 [2021-11-12 23:29:36,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:36,383 INFO L225 Difference]: With dead ends: 1194 [2021-11-12 23:29:36,383 INFO L226 Difference]: Without dead ends: 1192 [2021-11-12 23:29:36,384 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:29:36,385 INFO L933 BasicCegarLoop]: 1578 mSDtfsCounter, 1465 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1466 SdHoareTripleChecker+Valid, 3154 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.90ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:36,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1466 Valid, 3154 Invalid, 2 Unknown, 0 Unchecked, 5.90ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 9.15ms Time] [2021-11-12 23:29:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2021-11-12 23:29:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1192. [2021-11-12 23:29:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 803 states have (on average 1.2540473225404731) internal successors, (1007), 827 states have internal predecessors, (1007), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:29:36,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1580 transitions. [2021-11-12 23:29:36,505 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1580 transitions. Word has length 131 [2021-11-12 23:29:36,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:36,505 INFO L470 AbstractCegarLoop]: Abstraction has 1192 states and 1580 transitions. [2021-11-12 23:29:36,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2021-11-12 23:29:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1580 transitions. [2021-11-12 23:29:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-12 23:29:36,508 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:36,509 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:36,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:36,733 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 23 more)] === [2021-11-12 23:29:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1219350269, now seen corresponding path program 1 times [2021-11-12 23:29:36,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:36,738 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006220104] [2021-11-12 23:29:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:36,738 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:36,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:36,739 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:36,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-12 23:29:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:46,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 3298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:46,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:29:47,897 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:47,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:29:49,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:29:49,059 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:29:49,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006220104] [2021-11-12 23:29:49,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006220104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:29:49,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:29:49,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-12 23:29:49,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260370246] [2021-11-12 23:29:49,059 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:29:49,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:29:49,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:29:49,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:29:49,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:29:49,061 INFO L87 Difference]: Start difference. First operand 1192 states and 1580 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 23:29:49,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:29:49,292 INFO L93 Difference]: Finished difference Result 1192 states and 1580 transitions. [2021-11-12 23:29:49,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:29:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 137 [2021-11-12 23:29:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:29:49,300 INFO L225 Difference]: With dead ends: 1192 [2021-11-12 23:29:49,300 INFO L226 Difference]: Without dead ends: 1190 [2021-11-12 23:29:49,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:29:49,302 INFO L933 BasicCegarLoop]: 1576 mSDtfsCounter, 1523 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.21ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:29:49,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 3150 Invalid, 24 Unknown, 0 Unchecked, 6.21ms Time], IncrementalHoareTripleChecker [22 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 38.36ms Time] [2021-11-12 23:29:49,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2021-11-12 23:29:49,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 1190. [2021-11-12 23:29:49,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 802 states have (on average 1.2531172069825436) internal successors, (1005), 825 states have internal predecessors, (1005), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:29:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1578 transitions. [2021-11-12 23:29:49,427 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1578 transitions. Word has length 137 [2021-11-12 23:29:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:29:49,428 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 1578 transitions. [2021-11-12 23:29:49,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2021-11-12 23:29:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1578 transitions. [2021-11-12 23:29:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-12 23:29:49,431 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:29:49,431 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:29:49,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-12 23:29:49,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:29:49,632 INFO L402 AbstractCegarLoop]: === Iteration 17 === 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 23 more)] === [2021-11-12 23:29:49,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:29:49,632 INFO L85 PathProgramCache]: Analyzing trace with hash 188892249, now seen corresponding path program 1 times [2021-11-12 23:29:49,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:29:49,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216060184] [2021-11-12 23:29:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:29:49,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:29:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:29:49,637 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:29:49,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-12 23:29:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:29:59,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:29:59,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:00,934 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:30:00,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:01,587 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:30:01,588 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:01,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1216060184] [2021-11-12 23:30:01,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1216060184] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:01,588 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:01,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:30:01,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392142658] [2021-11-12 23:30:01,588 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:01,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:30:01,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:01,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:30:01,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:30:01,590 INFO L87 Difference]: Start difference. First operand 1190 states and 1578 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:30:01,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:01,718 INFO L93 Difference]: Finished difference Result 1190 states and 1578 transitions. [2021-11-12 23:30:01,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:30:01,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 143 [2021-11-12 23:30:01,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:01,725 INFO L225 Difference]: With dead ends: 1190 [2021-11-12 23:30:01,726 INFO L226 Difference]: Without dead ends: 1188 [2021-11-12 23:30:01,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 280 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:30:01,727 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 1449 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.22ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:01,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1450 Valid, 3146 Invalid, 2 Unknown, 0 Unchecked, 4.24ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 9.22ms Time] [2021-11-12 23:30:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2021-11-12 23:30:01,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 1188. [2021-11-12 23:30:01,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1188 states, 801 states have (on average 1.2521847690387016) internal successors, (1003), 823 states have internal predecessors, (1003), 287 states have call successors, (287), 92 states have call predecessors, (287), 91 states have return successors, (286), 285 states have call predecessors, (286), 286 states have call successors, (286) [2021-11-12 23:30:01,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1576 transitions. [2021-11-12 23:30:01,851 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1576 transitions. Word has length 143 [2021-11-12 23:30:01,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:01,851 INFO L470 AbstractCegarLoop]: Abstraction has 1188 states and 1576 transitions. [2021-11-12 23:30:01,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 2 states have call successors, (45), 2 states have call predecessors, (45), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2021-11-12 23:30:01,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1576 transitions. [2021-11-12 23:30:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:30:01,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:01,855 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:01,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:02,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:02,069 INFO L402 AbstractCegarLoop]: === Iteration 18 === 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 23 more)] === [2021-11-12 23:30:02,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:02,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1046129936, now seen corresponding path program 1 times [2021-11-12 23:30:02,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:02,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [387209502] [2021-11-12 23:30:02,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:02,075 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:02,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:02,076 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:02,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-12 23:30:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:12,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 3532 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-12 23:30:12,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 23:30:13,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-11-12 23:30:15,189 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:15,189 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [387209502] [2021-11-12 23:30:15,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [387209502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:15,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:15,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-12 23:30:15,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284012271] [2021-11-12 23:30:15,193 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:15,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-12 23:30:15,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:15,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-12 23:30:15,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-12 23:30:15,195 INFO L87 Difference]: Start difference. First operand 1188 states and 1576 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-12 23:30:18,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:30:20,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:20,461 INFO L93 Difference]: Finished difference Result 2353 states and 3172 transitions. [2021-11-12 23:30:20,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:30:20,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) Word has length 169 [2021-11-12 23:30:20,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:20,477 INFO L225 Difference]: With dead ends: 2353 [2021-11-12 23:30:20,477 INFO L226 Difference]: Without dead ends: 1198 [2021-11-12 23:30:20,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2021-11-12 23:30:20,485 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 20 mSDsluCounter, 10761 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3777.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 12322 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.21ms SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3907.97ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:20,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 12322 Invalid, 405 Unknown, 0 Unchecked, 24.21ms Time], IncrementalHoareTripleChecker [95 Valid, 309 Invalid, 1 Unknown, 0 Unchecked, 3907.97ms Time] [2021-11-12 23:30:20,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2021-11-12 23:30:20,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 1190. [2021-11-12 23:30:20,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1190 states, 802 states have (on average 1.2518703241895262) internal successors, (1004), 825 states have internal predecessors, (1004), 287 states have call successors, (287), 92 states have call predecessors, (287), 92 states have return successors, (287), 285 states have call predecessors, (287), 286 states have call successors, (287) [2021-11-12 23:30:20,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1190 states to 1190 states and 1578 transitions. [2021-11-12 23:30:20,633 INFO L78 Accepts]: Start accepts. Automaton has 1190 states and 1578 transitions. Word has length 169 [2021-11-12 23:30:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:20,634 INFO L470 AbstractCegarLoop]: Abstraction has 1190 states and 1578 transitions. [2021-11-12 23:30:20,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 10 states have internal predecessors, (79), 4 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (25), 6 states have call predecessors, (25), 4 states have call successors, (25) [2021-11-12 23:30:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1190 states and 1578 transitions. [2021-11-12 23:30:20,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:30:20,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:20,637 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:20,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:20,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:20,853 INFO L402 AbstractCegarLoop]: === Iteration 19 === 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 23 more)] === [2021-11-12 23:30:20,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:20,854 INFO L85 PathProgramCache]: Analyzing trace with hash 637305711, now seen corresponding path program 1 times [2021-11-12 23:30:20,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:20,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271850567] [2021-11-12 23:30:20,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:20,861 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:20,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:20,864 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:20,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-12 23:30:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:31,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 3541 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-12 23:30:31,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:30:32,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:30:32,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:32,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271850567] [2021-11-12 23:30:32,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [271850567] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:32,888 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:32,888 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:30:32,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734506584] [2021-11-12 23:30:32,888 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:32,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:30:32,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:32,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:30:32,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:30:32,889 INFO L87 Difference]: Start difference. First operand 1190 states and 1578 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:30:35,150 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:30:35,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:35,333 INFO L93 Difference]: Finished difference Result 2364 states and 3143 transitions. [2021-11-12 23:30:35,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:30:35,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 169 [2021-11-12 23:30:35,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:35,345 INFO L225 Difference]: With dead ends: 2364 [2021-11-12 23:30:35,346 INFO L226 Difference]: Without dead ends: 1207 [2021-11-12 23:30:35,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:30:35,353 INFO L933 BasicCegarLoop]: 1579 mSDtfsCounter, 18 mSDsluCounter, 6282 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2209.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 7861 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.91ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2246.72ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:35,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 7861 Invalid, 32 Unknown, 0 Unchecked, 8.91ms Time], IncrementalHoareTripleChecker [12 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2246.72ms Time] [2021-11-12 23:30:35,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2021-11-12 23:30:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1207. [2021-11-12 23:30:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 811 states have (on average 1.25154130702836) internal successors, (1015), 834 states have internal predecessors, (1015), 294 states have call successors, (294), 93 states have call predecessors, (294), 93 states have return successors, (295), 292 states have call predecessors, (295), 293 states have call successors, (295) [2021-11-12 23:30:35,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1604 transitions. [2021-11-12 23:30:35,489 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1604 transitions. Word has length 169 [2021-11-12 23:30:35,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:35,489 INFO L470 AbstractCegarLoop]: Abstraction has 1207 states and 1604 transitions. [2021-11-12 23:30:35,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 4 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-11-12 23:30:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1604 transitions. [2021-11-12 23:30:35,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-12 23:30:35,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:35,492 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:35,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:35,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:35,713 INFO L402 AbstractCegarLoop]: === Iteration 20 === 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 23 more)] === [2021-11-12 23:30:35,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:35,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1317364081, now seen corresponding path program 1 times [2021-11-12 23:30:35,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:35,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950528058] [2021-11-12 23:30:35,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:35,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:35,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:35,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:35,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-12 23:30:46,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:46,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 3537 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-12 23:30:46,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:30:48,483 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:30:48,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:30:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:30:49,383 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:30:49,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950528058] [2021-11-12 23:30:49,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950528058] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:30:49,384 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:30:49,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-11-12 23:30:49,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795795270] [2021-11-12 23:30:49,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:30:49,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:30:49,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:30:49,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:30:49,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:30:49,386 INFO L87 Difference]: Start difference. First operand 1207 states and 1604 transitions. Second operand has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:30:49,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:30:49,675 INFO L93 Difference]: Finished difference Result 1233 states and 1630 transitions. [2021-11-12 23:30:49,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:30:49,676 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 169 [2021-11-12 23:30:49,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:30:49,686 INFO L225 Difference]: With dead ends: 1233 [2021-11-12 23:30:49,686 INFO L226 Difference]: Without dead ends: 1229 [2021-11-12 23:30:49,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:30:49,688 INFO L933 BasicCegarLoop]: 1574 mSDtfsCounter, 1108 mSDsluCounter, 5107 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 6681 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 21.41ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.04ms IncrementalHoareTripleChecker+Time [2021-11-12 23:30:49,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 6681 Invalid, 8 Unknown, 0 Unchecked, 21.41ms Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 34.04ms Time] [2021-11-12 23:30:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2021-11-12 23:30:49,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1229. [2021-11-12 23:30:49,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 826 states have (on average 1.24818401937046) internal successors, (1031), 849 states have internal predecessors, (1031), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:30:49,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1626 transitions. [2021-11-12 23:30:49,896 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1626 transitions. Word has length 169 [2021-11-12 23:30:49,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:30:49,899 INFO L470 AbstractCegarLoop]: Abstraction has 1229 states and 1626 transitions. [2021-11-12 23:30:49,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.857142857142858) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (48), 4 states have call predecessors, (48), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2021-11-12 23:30:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1626 transitions. [2021-11-12 23:30:49,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-12 23:30:49,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:30:49,902 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:30:50,006 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2021-11-12 23:30:50,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:30:50,103 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:30:50,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:30:50,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1713913221, now seen corresponding path program 1 times [2021-11-12 23:30:50,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:30:50,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1012595063] [2021-11-12 23:30:50,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:30:50,110 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:30:50,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:30:50,111 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:30:50,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-12 23:30:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:30:59,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 3316 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:30:59,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:01,437 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:01,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:02,117 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:02,117 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:02,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1012595063] [2021-11-12 23:31:02,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1012595063] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:02,118 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:02,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:31:02,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477421681] [2021-11-12 23:31:02,118 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:02,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:31:02,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:31:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:31:02,119 INFO L87 Difference]: Start difference. First operand 1229 states and 1626 transitions. Second operand has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 23:31:02,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:02,321 INFO L93 Difference]: Finished difference Result 1229 states and 1626 transitions. [2021-11-12 23:31:02,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:02,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 149 [2021-11-12 23:31:02,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:02,330 INFO L225 Difference]: With dead ends: 1229 [2021-11-12 23:31:02,331 INFO L226 Difference]: Without dead ends: 1227 [2021-11-12 23:31:02,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:31:02,332 INFO L933 BasicCegarLoop]: 1570 mSDtfsCounter, 1436 mSDsluCounter, 3136 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1437 SdHoareTripleChecker+Valid, 4706 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.94ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.99ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:02,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1437 Valid, 4706 Invalid, 2 Unknown, 0 Unchecked, 8.94ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 11.99ms Time] [2021-11-12 23:31:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1227 states. [2021-11-12 23:31:02,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1227 to 1227. [2021-11-12 23:31:02,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 825 states have (on average 1.2472727272727273) internal successors, (1029), 847 states have internal predecessors, (1029), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:31:02,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1624 transitions. [2021-11-12 23:31:02,483 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1624 transitions. Word has length 149 [2021-11-12 23:31:02,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:02,484 INFO L470 AbstractCegarLoop]: Abstraction has 1227 states and 1624 transitions. [2021-11-12 23:31:02,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2021-11-12 23:31:02,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1624 transitions. [2021-11-12 23:31:02,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-11-12 23:31:02,487 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:02,487 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:02,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:02,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:02,710 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:31:02,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:02,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1392229070, now seen corresponding path program 1 times [2021-11-12 23:31:02,716 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:02,716 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2048267777] [2021-11-12 23:31:02,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:02,716 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:02,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:02,717 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:02,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-11-12 23:31:12,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:12,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:31:12,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:14,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:14,717 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:14,717 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2048267777] [2021-11-12 23:31:14,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2048267777] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:14,717 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:14,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:31:14,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064223982] [2021-11-12 23:31:14,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:14,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:31:14,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:31:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:31:14,719 INFO L87 Difference]: Start difference. First operand 1227 states and 1624 transitions. Second operand has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 23:31:14,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:14,883 INFO L93 Difference]: Finished difference Result 1227 states and 1624 transitions. [2021-11-12 23:31:14,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:14,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 155 [2021-11-12 23:31:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:14,895 INFO L225 Difference]: With dead ends: 1227 [2021-11-12 23:31:14,895 INFO L226 Difference]: Without dead ends: 1225 [2021-11-12 23:31:14,896 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:31:14,897 INFO L933 BasicCegarLoop]: 1568 mSDtfsCounter, 1428 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 4700 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.73ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.78ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:14,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1429 Valid, 4700 Invalid, 2 Unknown, 0 Unchecked, 7.73ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 9.78ms Time] [2021-11-12 23:31:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2021-11-12 23:31:15,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1225. [2021-11-12 23:31:15,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1225 states, 824 states have (on average 1.2463592233009708) internal successors, (1027), 845 states have internal predecessors, (1027), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:31:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1225 states to 1225 states and 1622 transitions. [2021-11-12 23:31:15,113 INFO L78 Accepts]: Start accepts. Automaton has 1225 states and 1622 transitions. Word has length 155 [2021-11-12 23:31:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:15,114 INFO L470 AbstractCegarLoop]: Abstraction has 1225 states and 1622 transitions. [2021-11-12 23:31:15,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.6) internal successors, (178), 5 states have internal predecessors, (178), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-12 23:31:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1225 states and 1622 transitions. [2021-11-12 23:31:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-12 23:31:15,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:15,118 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:15,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:15,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:15,341 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:31:15,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1727195094, now seen corresponding path program 1 times [2021-11-12 23:31:15,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:15,346 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1064290374] [2021-11-12 23:31:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:15,346 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:15,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:15,347 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:15,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2021-11-12 23:31:25,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:26,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-12 23:31:26,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:26,779 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:31:26,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:31:27,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:27,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1064290374] [2021-11-12 23:31:27,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1064290374] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:27,454 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:27,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:31:27,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717947943] [2021-11-12 23:31:27,455 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:27,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:31:27,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:27,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:31:27,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:31:27,456 INFO L87 Difference]: Start difference. First operand 1225 states and 1622 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-12 23:31:29,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:31:30,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:30,373 INFO L93 Difference]: Finished difference Result 1225 states and 1622 transitions. [2021-11-12 23:31:30,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:31:30,374 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 186 [2021-11-12 23:31:30,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:30,381 INFO L225 Difference]: With dead ends: 1225 [2021-11-12 23:31:30,382 INFO L226 Difference]: Without dead ends: 1223 [2021-11-12 23:31:30,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 364 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-12 23:31:30,383 INFO L933 BasicCegarLoop]: 1589 mSDtfsCounter, 602 mSDsluCounter, 4378 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 161 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2565.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 5967 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.39ms SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2686.15ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:30,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 5967 Invalid, 168 Unknown, 0 Unchecked, 9.39ms Time], IncrementalHoareTripleChecker [161 Valid, 6 Invalid, 1 Unknown, 0 Unchecked, 2686.15ms Time] [2021-11-12 23:31:30,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2021-11-12 23:31:30,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1223. [2021-11-12 23:31:30,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 823 states have (on average 1.2454434993924666) internal successors, (1025), 843 states have internal predecessors, (1025), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:31:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1620 transitions. [2021-11-12 23:31:30,532 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1620 transitions. Word has length 186 [2021-11-12 23:31:30,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:30,533 INFO L470 AbstractCegarLoop]: Abstraction has 1223 states and 1620 transitions. [2021-11-12 23:31:30,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (32), 5 states have call predecessors, (32), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-12 23:31:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1620 transitions. [2021-11-12 23:31:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-12 23:31:30,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:30,536 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:30,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:30,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:30,758 INFO L402 AbstractCegarLoop]: === Iteration 24 === 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 23 more)] === [2021-11-12 23:31:30,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:30,758 INFO L85 PathProgramCache]: Analyzing trace with hash -2111065148, now seen corresponding path program 1 times [2021-11-12 23:31:30,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:30,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778308844] [2021-11-12 23:31:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:30,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:30,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:30,766 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:30,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2021-11-12 23:31:40,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:40,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 3334 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:31:40,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:42,246 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:42,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:42,966 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:42,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:42,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778308844] [2021-11-12 23:31:42,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778308844] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:42,966 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:42,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:31:42,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753950088] [2021-11-12 23:31:42,967 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:42,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:31:42,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:42,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:31:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:31:42,969 INFO L87 Difference]: Start difference. First operand 1223 states and 1620 transitions. Second operand has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:31:43,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:43,258 INFO L93 Difference]: Finished difference Result 1223 states and 1620 transitions. [2021-11-12 23:31:43,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:43,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 161 [2021-11-12 23:31:43,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:43,277 INFO L225 Difference]: With dead ends: 1223 [2021-11-12 23:31:43,284 INFO L226 Difference]: Without dead ends: 1221 [2021-11-12 23:31:43,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:31:43,286 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 1418 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 4688 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.41ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.31ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:43,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 4688 Invalid, 2 Unknown, 0 Unchecked, 9.41ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 12.31ms Time] [2021-11-12 23:31:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-12 23:31:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1221. [2021-11-12 23:31:43,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 822 states have (on average 1.2445255474452555) internal successors, (1023), 841 states have internal predecessors, (1023), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:31:43,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1618 transitions. [2021-11-12 23:31:43,447 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1618 transitions. Word has length 161 [2021-11-12 23:31:43,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:43,448 INFO L470 AbstractCegarLoop]: Abstraction has 1221 states and 1618 transitions. [2021-11-12 23:31:43,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.2) internal successors, (186), 5 states have internal predecessors, (186), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2021-11-12 23:31:43,448 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1618 transitions. [2021-11-12 23:31:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-12 23:31:43,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:43,454 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:43,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:43,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:43,670 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:31:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1213069626, now seen corresponding path program 1 times [2021-11-12 23:31:43,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:43,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707940674] [2021-11-12 23:31:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:43,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:43,675 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:43,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-11-12 23:31:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:31:53,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 3343 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:31:53,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:31:55,062 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:55,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:31:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:31:55,807 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:31:55,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707940674] [2021-11-12 23:31:55,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707940674] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:31:55,808 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:31:55,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:31:55,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667837188] [2021-11-12 23:31:55,808 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:31:55,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:31:55,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:31:55,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:31:55,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:31:55,810 INFO L87 Difference]: Start difference. First operand 1221 states and 1618 transitions. Second operand has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 23:31:55,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:31:55,974 INFO L93 Difference]: Finished difference Result 1221 states and 1618 transitions. [2021-11-12 23:31:55,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:31:55,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 167 [2021-11-12 23:31:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:31:55,980 INFO L225 Difference]: With dead ends: 1221 [2021-11-12 23:31:55,980 INFO L226 Difference]: Without dead ends: 1219 [2021-11-12 23:31:55,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:31:55,982 INFO L933 BasicCegarLoop]: 1562 mSDtfsCounter, 1410 mSDsluCounter, 3120 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1411 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.67ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.02ms IncrementalHoareTripleChecker+Time [2021-11-12 23:31:55,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1411 Valid, 4682 Invalid, 2 Unknown, 0 Unchecked, 6.67ms Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 10.02ms Time] [2021-11-12 23:31:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2021-11-12 23:31:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1219. [2021-11-12 23:31:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1219 states, 821 states have (on average 1.243605359317905) internal successors, (1021), 839 states have internal predecessors, (1021), 297 states have call successors, (297), 98 states have call predecessors, (297), 98 states have return successors, (298), 295 states have call predecessors, (298), 296 states have call successors, (298) [2021-11-12 23:31:56,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1616 transitions. [2021-11-12 23:31:56,144 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1616 transitions. Word has length 167 [2021-11-12 23:31:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:31:56,145 INFO L470 AbstractCegarLoop]: Abstraction has 1219 states and 1616 transitions. [2021-11-12 23:31:56,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.8) internal successors, (194), 5 states have internal predecessors, (194), 2 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2021-11-12 23:31:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1616 transitions. [2021-11-12 23:31:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-12 23:31:56,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:31:56,147 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:31:56,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-11-12 23:31:56,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:31:56,350 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:31:56,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:31:56,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2015988891, now seen corresponding path program 1 times [2021-11-12 23:31:56,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:31:56,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519954732] [2021-11-12 23:31:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:31:56,357 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:31:56,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:31:56,358 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:31:56,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2021-11-12 23:32:05,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:06,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 3352 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:32:06,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:32:08,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-12 23:32:08,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:08,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519954732] [2021-11-12 23:32:08,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519954732] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:08,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:08,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-12 23:32:08,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836177069] [2021-11-12 23:32:08,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:08,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:32:08,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:08,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:32:08,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-12 23:32:08,764 INFO L87 Difference]: Start difference. First operand 1219 states and 1616 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:32:08,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:08,953 INFO L93 Difference]: Finished difference Result 1219 states and 1616 transitions. [2021-11-12 23:32:08,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:32:08,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 173 [2021-11-12 23:32:08,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:08,959 INFO L225 Difference]: With dead ends: 1219 [2021-11-12 23:32:08,959 INFO L226 Difference]: Without dead ends: 1090 [2021-11-12 23:32:08,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:32:08,961 INFO L933 BasicCegarLoop]: 1561 mSDtfsCounter, 1400 mSDsluCounter, 3122 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 4683 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.68ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.54ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:08,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1400 Valid, 4683 Invalid, 1 Unknown, 0 Unchecked, 6.68ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 4.54ms Time] [2021-11-12 23:32:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2021-11-12 23:32:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 1090. [2021-11-12 23:32:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1090 states, 734 states have (on average 1.2697547683923707) internal successors, (932), 751 states have internal predecessors, (932), 275 states have call successors, (275), 78 states have call predecessors, (275), 79 states have return successors, (277), 274 states have call predecessors, (277), 275 states have call successors, (277) [2021-11-12 23:32:09,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1090 states to 1090 states and 1484 transitions. [2021-11-12 23:32:09,101 INFO L78 Accepts]: Start accepts. Automaton has 1090 states and 1484 transitions. Word has length 173 [2021-11-12 23:32:09,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:09,102 INFO L470 AbstractCegarLoop]: Abstraction has 1090 states and 1484 transitions. [2021-11-12 23:32:09,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 5 states have internal predecessors, (202), 2 states have call successors, (55), 2 states have call predecessors, (55), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2021-11-12 23:32:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1090 states and 1484 transitions. [2021-11-12 23:32:09,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-12 23:32:09,106 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:09,107 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:09,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:09,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:09,322 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:32:09,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:09,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1325130936, now seen corresponding path program 1 times [2021-11-12 23:32:09,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:09,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373360877] [2021-11-12 23:32:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:09,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:09,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:09,327 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:09,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2021-11-12 23:32:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:20,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 3624 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-12 23:32:20,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:32:21,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2021-11-12 23:32:22,269 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:22,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373360877] [2021-11-12 23:32:22,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373360877] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:22,270 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:22,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-12 23:32:22,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284443763] [2021-11-12 23:32:22,270 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:22,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-12 23:32:22,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:22,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-12 23:32:22,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-12 23:32:22,271 INFO L87 Difference]: Start difference. First operand 1090 states and 1484 transitions. Second operand has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 10 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:32:22,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:22,911 INFO L93 Difference]: Finished difference Result 2177 states and 3011 transitions. [2021-11-12 23:32:22,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-12 23:32:22,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 10 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) Word has length 208 [2021-11-12 23:32:22,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:22,918 INFO L225 Difference]: With dead ends: 2177 [2021-11-12 23:32:22,919 INFO L226 Difference]: Without dead ends: 1120 [2021-11-12 23:32:22,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2021-11-12 23:32:22,925 INFO L933 BasicCegarLoop]: 1439 mSDtfsCounter, 8 mSDsluCounter, 11492 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 284.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 12931 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.96ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 300.51ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:22,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 12931 Invalid, 66 Unknown, 0 Unchecked, 15.96ms Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 300.51ms Time] [2021-11-12 23:32:22,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-11-12 23:32:23,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1103. [2021-11-12 23:32:23,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 743 states have (on average 1.2664872139973082) internal successors, (941), 760 states have internal predecessors, (941), 276 states have call successors, (276), 78 states have call predecessors, (276), 82 states have return successors, (302), 278 states have call predecessors, (302), 276 states have call successors, (302) [2021-11-12 23:32:23,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1519 transitions. [2021-11-12 23:32:23,050 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1519 transitions. Word has length 208 [2021-11-12 23:32:23,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:23,050 INFO L470 AbstractCegarLoop]: Abstraction has 1103 states and 1519 transitions. [2021-11-12 23:32:23,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.071428571428571) internal successors, (99), 10 states have internal predecessors, (99), 4 states have call successors, (34), 2 states have call predecessors, (34), 6 states have return successors, (32), 8 states have call predecessors, (32), 4 states have call successors, (32) [2021-11-12 23:32:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1519 transitions. [2021-11-12 23:32:23,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-11-12 23:32:23,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:23,060 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:23,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:23,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:23,282 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:32:23,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:23,282 INFO L85 PathProgramCache]: Analyzing trace with hash -2090774663, now seen corresponding path program 1 times [2021-11-12 23:32:23,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:23,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612010040] [2021-11-12 23:32:23,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:23,291 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:23,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:23,292 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:23,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2021-11-12 23:32:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:35,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 4179 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:32:35,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-12 23:32:36,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2021-11-12 23:32:37,968 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:37,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612010040] [2021-11-12 23:32:37,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612010040] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:32:37,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:32:37,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-12 23:32:37,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955004602] [2021-11-12 23:32:37,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:37,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:32:37,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:37,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:32:37,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:32:37,971 INFO L87 Difference]: Start difference. First operand 1103 states and 1519 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-12 23:32:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:38,142 INFO L93 Difference]: Finished difference Result 2182 states and 3119 transitions. [2021-11-12 23:32:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:32:38,144 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 309 [2021-11-12 23:32:38,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:38,149 INFO L225 Difference]: With dead ends: 2182 [2021-11-12 23:32:38,149 INFO L226 Difference]: Without dead ends: 1112 [2021-11-12 23:32:38,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:32:38,156 INFO L933 BasicCegarLoop]: 1436 mSDtfsCounter, 5 mSDsluCounter, 4303 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5739 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.14ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61.76ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:38,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 5739 Invalid, 11 Unknown, 0 Unchecked, 5.14ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 61.76ms Time] [2021-11-12 23:32:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2021-11-12 23:32:38,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1107. [2021-11-12 23:32:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 746 states have (on average 1.2654155495978552) internal successors, (944), 763 states have internal predecessors, (944), 276 states have call successors, (276), 78 states have call predecessors, (276), 83 states have return successors, (315), 279 states have call predecessors, (315), 276 states have call successors, (315) [2021-11-12 23:32:38,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1535 transitions. [2021-11-12 23:32:38,268 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1535 transitions. Word has length 309 [2021-11-12 23:32:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:38,269 INFO L470 AbstractCegarLoop]: Abstraction has 1107 states and 1535 transitions. [2021-11-12 23:32:38,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2021-11-12 23:32:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1535 transitions. [2021-11-12 23:32:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-12 23:32:38,278 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:38,279 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:38,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:38,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:38,494 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:32:38,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:38,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1886889037, now seen corresponding path program 1 times [2021-11-12 23:32:38,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:38,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1015278222] [2021-11-12 23:32:38,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:38,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:38,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:38,503 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:38,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2021-11-12 23:32:50,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:32:50,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 4415 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:32:50,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:32:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2021-11-12 23:32:52,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:32:53,257 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 750 trivial. 0 not checked. [2021-11-12 23:32:53,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:32:53,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1015278222] [2021-11-12 23:32:53,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1015278222] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:32:53,258 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:32:53,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 7 [2021-11-12 23:32:53,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930241335] [2021-11-12 23:32:53,258 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:32:53,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:32:53,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:32:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:32:53,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:32:53,260 INFO L87 Difference]: Start difference. First operand 1107 states and 1535 transitions. Second operand has 7 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-12 23:32:56,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:58,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:32:58,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:32:58,404 INFO L93 Difference]: Finished difference Result 2187 states and 3056 transitions. [2021-11-12 23:32:58,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:32:58,405 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 402 [2021-11-12 23:32:58,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:32:58,410 INFO L225 Difference]: With dead ends: 2187 [2021-11-12 23:32:58,410 INFO L226 Difference]: Without dead ends: 1113 [2021-11-12 23:32:58,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 797 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:32:58,416 INFO L933 BasicCegarLoop]: 1434 mSDtfsCounter, 32 mSDsluCounter, 7095 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4814.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.66ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4908.70ms IncrementalHoareTripleChecker+Time [2021-11-12 23:32:58,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 8529 Invalid, 156 Unknown, 0 Unchecked, 9.66ms Time], IncrementalHoareTripleChecker [17 Valid, 137 Invalid, 2 Unknown, 0 Unchecked, 4908.70ms Time] [2021-11-12 23:32:58,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2021-11-12 23:32:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1111. [2021-11-12 23:32:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 749 states have (on average 1.2656875834445929) internal successors, (948), 767 states have internal predecessors, (948), 276 states have call successors, (276), 78 states have call predecessors, (276), 84 states have return successors, (323), 279 states have call predecessors, (323), 276 states have call successors, (323) [2021-11-12 23:32:58,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1547 transitions. [2021-11-12 23:32:58,529 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1547 transitions. Word has length 402 [2021-11-12 23:32:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:32:58,530 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 1547 transitions. [2021-11-12 23:32:58,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 34.833333333333336) internal successors, (209), 6 states have internal predecessors, (209), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2021-11-12 23:32:58,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1547 transitions. [2021-11-12 23:32:58,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-11-12 23:32:58,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:32:58,539 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:32:58,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2021-11-12 23:32:58,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:32:58,754 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:32:58,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:32:58,754 INFO L85 PathProgramCache]: Analyzing trace with hash 514701120, now seen corresponding path program 1 times [2021-11-12 23:32:58,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:32:58,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164614882] [2021-11-12 23:32:58,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:32:58,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:32:58,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:32:58,765 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:32:58,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2021-11-12 23:33:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:11,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 4235 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:33:11,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:12,518 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2021-11-12 23:33:12,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:14,007 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2021-11-12 23:33:14,007 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:14,007 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164614882] [2021-11-12 23:33:14,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [164614882] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:33:14,007 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:33:14,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-12 23:33:14,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446304742] [2021-11-12 23:33:14,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:14,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:33:14,008 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:14,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:33:14,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:14,009 INFO L87 Difference]: Start difference. First operand 1111 states and 1547 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-12 23:33:14,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:14,177 INFO L93 Difference]: Finished difference Result 2198 states and 3160 transitions. [2021-11-12 23:33:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:33:14,177 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 323 [2021-11-12 23:33:14,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:14,184 INFO L225 Difference]: With dead ends: 2198 [2021-11-12 23:33:14,184 INFO L226 Difference]: Without dead ends: 1120 [2021-11-12 23:33:14,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:14,192 INFO L933 BasicCegarLoop]: 1440 mSDtfsCounter, 5 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5754 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.52ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.64ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:14,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 5754 Invalid, 11 Unknown, 0 Unchecked, 5.52ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 52.64ms Time] [2021-11-12 23:33:14,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-11-12 23:33:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 1115. [2021-11-12 23:33:14,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 752 states have (on average 1.264627659574468) internal successors, (951), 770 states have internal predecessors, (951), 276 states have call successors, (276), 78 states have call predecessors, (276), 85 states have return successors, (329), 280 states have call predecessors, (329), 276 states have call successors, (329) [2021-11-12 23:33:14,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1556 transitions. [2021-11-12 23:33:14,341 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1556 transitions. Word has length 323 [2021-11-12 23:33:14,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:14,342 INFO L470 AbstractCegarLoop]: Abstraction has 1115 states and 1556 transitions. [2021-11-12 23:33:14,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 2 states have call successors, (47), 2 states have call predecessors, (47), 3 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-12 23:33:14,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1556 transitions. [2021-11-12 23:33:14,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-12 23:33:14,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:14,351 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1] [2021-11-12 23:33:14,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:14,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:14,570 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:33:14,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:14,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1649116164, now seen corresponding path program 1 times [2021-11-12 23:33:14,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:14,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353175987] [2021-11-12 23:33:14,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:14,579 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:14,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:14,580 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:14,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2021-11-12 23:33:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:27,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 4408 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:33:27,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2021-11-12 23:33:28,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:30,283 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2021-11-12 23:33:30,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:30,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353175987] [2021-11-12 23:33:30,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353175987] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:30,283 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:30,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:33:30,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470076494] [2021-11-12 23:33:30,284 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:30,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:33:30,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:30,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:33:30,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:30,286 INFO L87 Difference]: Start difference. First operand 1115 states and 1556 transitions. Second operand has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-12 23:33:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:30,796 INFO L93 Difference]: Finished difference Result 2205 states and 3160 transitions. [2021-11-12 23:33:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:33:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) Word has length 402 [2021-11-12 23:33:30,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:30,805 INFO L225 Difference]: With dead ends: 2205 [2021-11-12 23:33:30,805 INFO L226 Difference]: Without dead ends: 1123 [2021-11-12 23:33:30,811 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 802 GetRequests, 796 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:30,812 INFO L933 BasicCegarLoop]: 1434 mSDtfsCounter, 3 mSDsluCounter, 7105 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 313.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8539 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.07ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 331.35ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:30,812 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 8539 Invalid, 73 Unknown, 0 Unchecked, 8.07ms Time], IncrementalHoareTripleChecker [10 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 331.35ms Time] [2021-11-12 23:33:30,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2021-11-12 23:33:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1119. [2021-11-12 23:33:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 755 states have (on average 1.2635761589403973) internal successors, (954), 773 states have internal predecessors, (954), 276 states have call successors, (276), 78 states have call predecessors, (276), 86 states have return successors, (332), 281 states have call predecessors, (332), 276 states have call successors, (332) [2021-11-12 23:33:30,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1562 transitions. [2021-11-12 23:33:30,974 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1562 transitions. Word has length 402 [2021-11-12 23:33:30,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:30,975 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 1562 transitions. [2021-11-12 23:33:30,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.0) internal successors, (168), 6 states have internal predecessors, (168), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (60), 4 states have call predecessors, (60), 2 states have call successors, (60) [2021-11-12 23:33:30,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1562 transitions. [2021-11-12 23:33:30,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-11-12 23:33:30,983 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:30,984 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:33:31,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:31,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:31,198 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:33:31,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:31,198 INFO L85 PathProgramCache]: Analyzing trace with hash -587330560, now seen corresponding path program 1 times [2021-11-12 23:33:31,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:31,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385009081] [2021-11-12 23:33:31,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:31,207 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:31,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:31,209 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:31,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2021-11-12 23:33:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:33:45,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 4502 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:33:45,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:33:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2021-11-12 23:33:46,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:33:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2021-11-12 23:33:48,075 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:33:48,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385009081] [2021-11-12 23:33:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385009081] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:33:48,075 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:33:48,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-12 23:33:48,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135297905] [2021-11-12 23:33:48,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:33:48,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 23:33:48,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:33:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 23:33:48,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:48,077 INFO L87 Difference]: Start difference. First operand 1119 states and 1562 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-12 23:33:48,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:33:48,544 INFO L93 Difference]: Finished difference Result 2211 states and 3168 transitions. [2021-11-12 23:33:48,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:33:48,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) Word has length 415 [2021-11-12 23:33:48,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:33:48,553 INFO L225 Difference]: With dead ends: 2211 [2021-11-12 23:33:48,553 INFO L226 Difference]: Without dead ends: 1125 [2021-11-12 23:33:48,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 828 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:33:48,561 INFO L933 BasicCegarLoop]: 1438 mSDtfsCounter, 3 mSDsluCounter, 8561 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 323.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 9999 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.39ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 340.80ms IncrementalHoareTripleChecker+Time [2021-11-12 23:33:48,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 9999 Invalid, 74 Unknown, 0 Unchecked, 9.39ms Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 340.80ms Time] [2021-11-12 23:33:48,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1125 states. [2021-11-12 23:33:48,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1125 to 1121. [2021-11-12 23:33:48,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 757 states have (on average 1.262879788639366) internal successors, (956), 774 states have internal predecessors, (956), 276 states have call successors, (276), 78 states have call predecessors, (276), 86 states have return successors, (332), 282 states have call predecessors, (332), 276 states have call successors, (332) [2021-11-12 23:33:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1564 transitions. [2021-11-12 23:33:48,698 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1564 transitions. Word has length 415 [2021-11-12 23:33:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:33:48,699 INFO L470 AbstractCegarLoop]: Abstraction has 1121 states and 1564 transitions. [2021-11-12 23:33:48,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 6 states have internal predecessors, (164), 2 states have call successors, (58), 2 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 2 states have call successors, (55) [2021-11-12 23:33:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1564 transitions. [2021-11-12 23:33:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-12 23:33:48,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:33:48,708 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-11-12 23:33:48,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2021-11-12 23:33:48,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:33:48,934 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:33:48,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:33:48,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1440142637, now seen corresponding path program 1 times [2021-11-12 23:33:48,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:33:48,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [138847883] [2021-11-12 23:33:48,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:33:48,939 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:33:48,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:33:48,940 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:33:48,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2021-11-12 23:34:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:01,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 4550 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-12 23:34:01,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2021-11-12 23:34:03,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:34:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2021-11-12 23:34:06,457 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:34:06,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [138847883] [2021-11-12 23:34:06,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [138847883] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:34:06,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:34:06,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20 [2021-11-12 23:34:06,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988202540] [2021-11-12 23:34:06,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:06,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 23:34:06,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:34:06,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 23:34:06,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-11-12 23:34:06,459 INFO L87 Difference]: Start difference. First operand 1121 states and 1564 transitions. Second operand has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (52), 6 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-12 23:34:09,260 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:34:09,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:09,322 INFO L93 Difference]: Finished difference Result 2228 states and 3130 transitions. [2021-11-12 23:34:09,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-12 23:34:09,323 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (52), 6 states have call predecessors, (52), 3 states have call successors, (52) Word has length 403 [2021-11-12 23:34:09,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:09,329 INFO L225 Difference]: With dead ends: 2228 [2021-11-12 23:34:09,330 INFO L226 Difference]: Without dead ends: 1140 [2021-11-12 23:34:09,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-11-12 23:34:09,336 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 6 mSDsluCounter, 12972 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2461.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14416 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2506.49ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:09,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 14416 Invalid, 81 Unknown, 0 Unchecked, 14.76ms Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 1 Unknown, 0 Unchecked, 2506.49ms Time] [2021-11-12 23:34:09,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2021-11-12 23:34:09,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1134. [2021-11-12 23:34:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 766 states have (on average 1.2597911227154046) internal successors, (965), 783 states have internal predecessors, (965), 277 states have call successors, (277), 78 states have call predecessors, (277), 89 states have return successors, (356), 286 states have call predecessors, (356), 277 states have call successors, (356) [2021-11-12 23:34:09,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1598 transitions. [2021-11-12 23:34:09,458 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1598 transitions. Word has length 403 [2021-11-12 23:34:09,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:34:09,458 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1598 transitions. [2021-11-12 23:34:09,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.818181818181818) internal successors, (174), 8 states have internal predecessors, (174), 3 states have call successors, (56), 2 states have call predecessors, (56), 5 states have return successors, (52), 6 states have call predecessors, (52), 3 states have call successors, (52) [2021-11-12 23:34:09,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1598 transitions. [2021-11-12 23:34:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-12 23:34:09,463 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:09,463 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:09,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2021-11-12 23:34:09,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:34:09,664 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:34:09,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:09,664 INFO L85 PathProgramCache]: Analyzing trace with hash 161891898, now seen corresponding path program 1 times [2021-11-12 23:34:09,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:34:09,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1441678958] [2021-11-12 23:34:09,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:09,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:34:09,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:34:09,670 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:34:09,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2021-11-12 23:34:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:24,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 4329 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-12 23:34:24,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:28,064 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-12 23:34:28,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:34:29,459 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-12 23:34:29,460 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:34:29,460 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1441678958] [2021-11-12 23:34:29,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1441678958] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:34:29,460 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:34:29,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7 [2021-11-12 23:34:29,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728832449] [2021-11-12 23:34:29,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:29,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-12 23:34:29,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:34:29,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-12 23:34:29,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:34:29,463 INFO L87 Difference]: Start difference. First operand 1134 states and 1598 transitions. Second operand has 7 states, 7 states have (on average 32.142857142857146) internal successors, (225), 6 states have internal predecessors, (225), 2 states have call successors, (86), 2 states have call predecessors, (86), 4 states have return successors, (82), 3 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-12 23:34:31,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:34:33,817 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-12 23:34:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:40,216 INFO L93 Difference]: Finished difference Result 2235 states and 3166 transitions. [2021-11-12 23:34:40,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-12 23:34:40,217 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.142857142857146) internal successors, (225), 6 states have internal predecessors, (225), 2 states have call successors, (86), 2 states have call predecessors, (86), 4 states have return successors, (82), 3 states have call predecessors, (82), 2 states have call successors, (82) Word has length 336 [2021-11-12 23:34:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:40,221 INFO L225 Difference]: With dead ends: 2235 [2021-11-12 23:34:40,221 INFO L226 Difference]: Without dead ends: 1134 [2021-11-12 23:34:40,225 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 665 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-12 23:34:40,226 INFO L933 BasicCegarLoop]: 1428 mSDtfsCounter, 1234 mSDsluCounter, 4631 mSDsCounter, 0 mSdLazyCounter, 1073 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9989.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 6059 SdHoareTripleChecker+Invalid, 1076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.64ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1073 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10394.48ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:40,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1236 Valid, 6059 Invalid, 1076 Unknown, 0 Unchecked, 18.64ms Time], IncrementalHoareTripleChecker [1 Valid, 1073 Invalid, 2 Unknown, 0 Unchecked, 10394.48ms Time] [2021-11-12 23:34:40,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1134 states. [2021-11-12 23:34:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1134 to 1134. [2021-11-12 23:34:40,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 766 states have (on average 1.2584856396866841) internal successors, (964), 783 states have internal predecessors, (964), 277 states have call successors, (277), 78 states have call predecessors, (277), 89 states have return successors, (356), 286 states have call predecessors, (356), 277 states have call successors, (356) [2021-11-12 23:34:40,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1597 transitions. [2021-11-12 23:34:40,378 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1597 transitions. Word has length 336 [2021-11-12 23:34:40,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:34:40,379 INFO L470 AbstractCegarLoop]: Abstraction has 1134 states and 1597 transitions. [2021-11-12 23:34:40,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.142857142857146) internal successors, (225), 6 states have internal predecessors, (225), 2 states have call successors, (86), 2 states have call predecessors, (86), 4 states have return successors, (82), 3 states have call predecessors, (82), 2 states have call successors, (82) [2021-11-12 23:34:40,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1597 transitions. [2021-11-12 23:34:40,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-12 23:34:40,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:40,388 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:40,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2021-11-12 23:34:40,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:34:40,610 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:34:40,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:40,610 INFO L85 PathProgramCache]: Analyzing trace with hash 161951480, now seen corresponding path program 1 times [2021-11-12 23:34:40,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:34:40,618 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971983000] [2021-11-12 23:34:40,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:40,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:34:40,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:34:40,620 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:34:40,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2021-11-12 23:34:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:34:54,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 4329 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:34:54,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:34:55,218 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-12 23:34:55,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:34:55,941 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2021-11-12 23:34:55,941 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:34:55,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971983000] [2021-11-12 23:34:55,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971983000] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:34:55,941 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:34:55,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-12 23:34:55,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773365763] [2021-11-12 23:34:55,942 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:34:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-12 23:34:55,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:34:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-12 23:34:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-12 23:34:55,943 INFO L87 Difference]: Start difference. First operand 1134 states and 1597 transitions. Second operand has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-12 23:34:56,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:34:56,099 INFO L93 Difference]: Finished difference Result 1134 states and 1597 transitions. [2021-11-12 23:34:56,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-12 23:34:56,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 336 [2021-11-12 23:34:56,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:34:56,104 INFO L225 Difference]: With dead ends: 1134 [2021-11-12 23:34:56,104 INFO L226 Difference]: Without dead ends: 1132 [2021-11-12 23:34:56,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-12 23:34:56,106 INFO L933 BasicCegarLoop]: 1427 mSDtfsCounter, 34 mSDsluCounter, 4247 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.00ms IncrementalHoareTripleChecker+Time [2021-11-12 23:34:56,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 5674 Invalid, 4 Unknown, 0 Unchecked, 4.28ms Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 18.00ms Time] [2021-11-12 23:34:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-11-12 23:34:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2021-11-12 23:34:56,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 765 states have (on average 1.257516339869281) internal successors, (962), 781 states have internal predecessors, (962), 277 states have call successors, (277), 78 states have call predecessors, (277), 89 states have return successors, (356), 286 states have call predecessors, (356), 277 states have call successors, (356) [2021-11-12 23:34:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1595 transitions. [2021-11-12 23:34:56,255 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1595 transitions. Word has length 336 [2021-11-12 23:34:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:34:56,256 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1595 transitions. [2021-11-12 23:34:56,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.333333333333332) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2021-11-12 23:34:56,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1595 transitions. [2021-11-12 23:34:56,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-11-12 23:34:56,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:34:56,263 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:34:56,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (36)] Forceful destruction successful, exit code 0 [2021-11-12 23:34:56,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:34:56,464 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:34:56,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:34:56,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2109532026, now seen corresponding path program 1 times [2021-11-12 23:34:56,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:34:56,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668262205] [2021-11-12 23:34:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:34:56,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:34:56,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:34:56,471 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:34:56,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2021-11-12 23:35:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:10,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 4362 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-12 23:35:10,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:11,487 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2021-11-12 23:35:11,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:12,955 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2021-11-12 23:35:12,955 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:12,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668262205] [2021-11-12 23:35:12,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668262205] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 23:35:12,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 23:35:12,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-12 23:35:12,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254033227] [2021-11-12 23:35:12,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:12,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-12 23:35:12,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:12,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-12 23:35:12,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:12,957 INFO L87 Difference]: Start difference. First operand 1132 states and 1595 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-12 23:35:13,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:13,112 INFO L93 Difference]: Finished difference Result 2231 states and 3245 transitions. [2021-11-12 23:35:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-12 23:35:13,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) Word has length 347 [2021-11-12 23:35:13,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:13,119 INFO L225 Difference]: With dead ends: 2231 [2021-11-12 23:35:13,119 INFO L226 Difference]: Without dead ends: 1132 [2021-11-12 23:35:13,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 692 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-12 23:35:13,126 INFO L933 BasicCegarLoop]: 1444 mSDtfsCounter, 2 mSDsluCounter, 4323 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.65ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5767 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.64ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.36ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:13,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 5767 Invalid, 11 Unknown, 0 Unchecked, 4.64ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 53.36ms Time] [2021-11-12 23:35:13,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1132 states. [2021-11-12 23:35:13,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1132 to 1132. [2021-11-12 23:35:13,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1132 states, 765 states have (on average 1.2562091503267974) internal successors, (961), 781 states have internal predecessors, (961), 277 states have call successors, (277), 78 states have call predecessors, (277), 89 states have return successors, (356), 286 states have call predecessors, (356), 277 states have call successors, (356) [2021-11-12 23:35:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1132 states to 1132 states and 1594 transitions. [2021-11-12 23:35:13,236 INFO L78 Accepts]: Start accepts. Automaton has 1132 states and 1594 transitions. Word has length 347 [2021-11-12 23:35:13,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:13,237 INFO L470 AbstractCegarLoop]: Abstraction has 1132 states and 1594 transitions. [2021-11-12 23:35:13,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (48), 2 states have call predecessors, (48), 3 states have return successors, (45), 3 states have call predecessors, (45), 2 states have call successors, (45) [2021-11-12 23:35:13,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1132 states and 1594 transitions. [2021-11-12 23:35:13,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-12 23:35:13,242 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 23:35:13,242 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 23:35:13,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2021-11-12 23:35:13,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:13,443 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION === [ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 23 more)] === [2021-11-12 23:35:13,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 23:35:13,443 INFO L85 PathProgramCache]: Analyzing trace with hash -800473073, now seen corresponding path program 1 times [2021-11-12 23:35:13,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 23:35:13,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878888742] [2021-11-12 23:35:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 23:35:13,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 23:35:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 23:35:13,449 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 23:35:13,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2021-11-12 23:35:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 23:35:29,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 4513 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-12 23:35:29,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 23:35:33,909 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2021-11-12 23:35:33,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 23:35:35,515 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2021-11-12 23:35:35,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 23:35:35,516 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878888742] [2021-11-12 23:35:35,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878888742] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 23:35:35,516 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 23:35:35,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4 [2021-11-12 23:35:35,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104720954] [2021-11-12 23:35:35,516 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 23:35:35,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-12 23:35:35,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 23:35:35,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-12 23:35:35,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:35:35,518 INFO L87 Difference]: Start difference. First operand 1132 states and 1594 transitions. Second operand has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (102), 3 states have call predecessors, (102), 2 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2021-11-12 23:35:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 23:35:36,612 INFO L93 Difference]: Finished difference Result 2227 states and 3154 transitions. [2021-11-12 23:35:36,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-12 23:35:36,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (102), 3 states have call predecessors, (102), 2 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) Word has length 419 [2021-11-12 23:35:36,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 23:35:36,614 INFO L225 Difference]: With dead ends: 2227 [2021-11-12 23:35:36,614 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 23:35:36,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 834 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-12 23:35:36,622 INFO L933 BasicCegarLoop]: 1423 mSDtfsCounter, 2034 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 715.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.05ms SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 886.52ms IncrementalHoareTripleChecker+Time [2021-11-12 23:35:36,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2034 Valid, 1423 Invalid, 504 Unknown, 0 Unchecked, 6.05ms Time], IncrementalHoareTripleChecker [503 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 886.52ms Time] [2021-11-12 23:35:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 23:35:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 23:35:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-12 23:35:36,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 23:35:36,623 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 419 [2021-11-12 23:35:36,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 23:35:36,623 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 23:35:36,624 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.5) internal successors, (286), 4 states have internal predecessors, (286), 3 states have call successors, (102), 3 states have call predecessors, (102), 2 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2021-11-12 23:35:36,624 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 23:35:36,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 23:35:36,626 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_coherent_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (24 of 25 remaining) [2021-11-12 23:35:36,627 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (23 of 25 remaining) [2021-11-12 23:35:36,627 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_bh_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (22 of 25 remaining) [2021-11-12 23:35:36,627 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (21 of 25 remaining) [2021-11-12 23:35:36,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_genhd_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (20 of 25 remaining) [2021-11-12 23:35:36,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_urb_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 25 remaining) [2021-11-12 23:35:36,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (18 of 25 remaining) [2021-11-12 23:35:36,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr1ASSERT_VIOLATIONERROR_FUNCTION (17 of 25 remaining) [2021-11-12 23:35:36,628 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (16 of 25 remaining) [2021-11-12 23:35:36,629 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_locking_rwlock_check_final_stateErr1ASSERT_VIOLATIONERROR_FUNCTION (15 of 25 remaining) [2021-11-12 23:35:36,629 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_mmc_sdio_func_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 25 remaining) [2021-11-12 23:35:36,629 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 25 remaining) [2021-11-12 23:35:36,629 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_lib_idr_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (12 of 25 remaining) [2021-11-12 23:35:36,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_char_dev_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 25 remaining) [2021-11-12 23:35:36,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_srcu_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 25 remaining) [2021-11-12 23:35:36,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_arch_io_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (9 of 25 remaining) [2021-11-12 23:35:36,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_module_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 25 remaining) [2021-11-12 23:35:36,630 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_drivers_base_class_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 25 remaining) [2021-11-12 23:35:36,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_sock_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 25 remaining) [2021-11-12 23:35:36,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_usb_gadget_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 25 remaining) [2021-11-12 23:35:36,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_fs_sysfs_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 25 remaining) [2021-11-12 23:35:36,631 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_queue_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 25 remaining) [2021-11-12 23:35:36,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_kernel_rcu_update_lock_sched_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 25 remaining) [2021-11-12 23:35:36,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_net_rtnetlink_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 25 remaining) [2021-11-12 23:35:36,632 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_linux_block_request_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 25 remaining) [2021-11-12 23:35:36,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (38)] Ended with exit code 0 [2021-11-12 23:35:36,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_063e13a1-5366-4876-adfe-6e4ef64f04fd/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 23:35:36,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.